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<!DOCTYPE html> <html > <head> <meta charset="utf-8"> <meta rel="search" type="application/opensearchdescription+xml" href="/open_search.xml" title="Academia.edu"> <meta content="width=device-width, initial-scale=1" name="viewport"> <meta name="google-site-verification" content="bKJMBZA7E43xhDOopFZkssMMkBRjvYERV-NaN4R6mrs"> <meta name="csrf-param" content="authenticity_token" /> <meta name="csrf-token" content="309vn9lG9r7G2t0n7YgEzihFaC4BsKHPRZZJUT74mMvzLjibSQ85+tRA7KBOHh/K9QQDQzdOqxrIUqQZuUoa6Q==" /> <meta name="citation_title" content="Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels" /> <meta name="citation_publication_date" content="2015/01/23" /> <meta name="citation_journal_title" content="Journal of environmental management" /> <meta name="citation_author" content="Mohammed Siddiq" /> <meta name="twitter:card" content="summary" /> <meta name="twitter:url" content="https://www.academia.edu/103476032/Fast_removal_of_high_quantities_of_toxic_arsenate_via_cationic_p_APTMACl_microgels" /> <meta name="twitter:title" content="Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels" /> <meta name="twitter:description" content="Hydrogels are resourceful materials and can be prepared in different morphology, size, surface charge and porosity adopting different polymerization techniques and reaction conditions. 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The cationic poly(3-acrylamidopropyl)trimethylammonium chloride" /> <meta property="article:author" content="https://independent.academia.edu/MohammedSiddiq48" /> <meta name="description" content="Hydrogels are resourceful materials and can be prepared in different morphology, size, surface charge and porosity adopting different polymerization techniques and reaction conditions. The cationic poly(3-acrylamidopropyl)trimethylammonium chloride" /> <title>(PDF) Efficient Arsenate Removal Using Cationic Microgels</title> <link rel="canonical" href="https://www.academia.edu/103476032/Fast_removal_of_high_quantities_of_toxic_arsenate_via_cationic_p_APTMACl_microgels" /> <script async src="https://www.googletagmanager.com/gtag/js?id=G-5VKX33P2DS"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-5VKX33P2DS', { cookie_domain: 'academia.edu', send_page_view: false, }); gtag('event', 'page_view', { 'controller': "single_work", 'action': "show", 'controller_action': 'single_work#show', 'logged_in': 'false', 'edge': 'unknown', // Send nil if there is no A/B test bucket, in case some records get logged // with missing data - that way we can distinguish between the two cases. // ab_test_bucket should be of the form <ab_test_name>:<bucket> 'ab_test_bucket': null, }) </script> <script> var $controller_name = 'single_work'; var $action_name = "show"; var $rails_env = 'production'; var $app_rev = '0192aed340bff0301971519c3416a67fe8da52c1'; var $domain = 'academia.edu'; var $app_host = "academia.edu"; var $asset_host = "academia-assets.com"; var $start_time = new Date().getTime(); var $recaptcha_key = "6LdxlRMTAAAAADnu_zyLhLg0YF9uACwz78shpjJB"; var $recaptcha_invisible_key = "6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj"; var $disableClientRecordHit = false; </script> <script> window.require = { config: function() { return function() {} } } </script> <script> window.Aedu = window.Aedu || {}; window.Aedu.hit_data = null; window.Aedu.serverRenderTime = new Date(1733347919000); window.Aedu.timeDifference = new Date().getTime() - 1733347919000; </script> <script type="application/ld+json">{"@context":"https://schema.org","@type":"ScholarlyArticle","abstract":"Hydrogels are resourceful materials and can be prepared in different morphology, size, surface charge and porosity adopting different polymerization techniques and reaction conditions. The cationic poly(3-acrylamidopropyl)trimethylammonium chloride (p(APTMACl)) microgels were synthesized by photo-initiated inverse suspension polymerization technique. These microgels were utilized as absorbents for the removal of toxic arsenate (As) from different aqueous environments. The experimental parameters affecting absorption efficiency were investigated, and it was demonstrated that these types of microgels are highly efficient in removing arsenate anions from different aqueous environments compared to the previously reported bulk hydrogel, and cryogel of the same material. A removal efficiency of approximately 97.25% was obtained by immersing 0.5 g microgel in 250 ppm 100 mL solution of arsenate anions for 60 min. Both Langmuir and Freundlich adsorption isotherms were applied to adsorption ...","author":[{"@context":"https://schema.org","@type":"Person","name":"Mohammed Siddiq"}],"contributor":[],"dateCreated":"2023-06-17","dateModified":"2024-11-28","datePublished":"2015-01-23","headline":"Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels","image":"https://attachments.academia-assets.com/103473819/thumbnails/1.jpg","inLanguage":"en","keywords":["Chemistry","Water","Water Purification","Environmental Management","Hydrogels","Medicine","Multidisciplinary","Polymerization","Adsorption","Porosity","Cationic polymerization","Acrylic Resins","Arsenic Removal","Langmuir","Quaternary Ammonium Compounds","Aqueous Solution","Cations","Arsenates","Arsenate"],"publication":"Journal of environmental management","publisher":{"@context":"https://schema.org","@type":"Organization","name":null},"sourceOrganization":[{"@context":"https://schema.org","@type":"EducationalOrganization","name":null}],"thumbnailUrl":"https://attachments.academia-assets.com/103473819/thumbnails/1.jpg","url":"https://www.academia.edu/103476032/Fast_removal_of_high_quantities_of_toxic_arsenate_via_cationic_p_APTMACl_microgels"}</script><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/single_work_page/loswp-102fa537001ba4d8dcd921ad9bd56c474abc201906ea4843e7e7efe9dfbf561d.css" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/body-8d679e925718b5e8e4b18e9a4fab37f7eaa99e43386459376559080ac8f2856a.css" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/button-3cea6e0ad4715ed965c49bfb15dedfc632787b32ff6d8c3a474182b231146ab7.css" /><link rel="stylesheet" media="all" 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window.loswp.shouldDetectTimezone = true; window.loswp.shouldShowBulkDownload = true; window.loswp.showSignupCaptcha = false window.loswp.willEdgeCache = false; window.loswp.work = {"work":{"id":103476032,"created_at":"2023-06-17T07:02:51.956-07:00","from_world_paper_id":235933486,"updated_at":"2024-11-28T08:01:20.184-08:00","_data":{"abstract":"Hydrogels are resourceful materials and can be prepared in different morphology, size, surface charge and porosity adopting different polymerization techniques and reaction conditions. The cationic poly(3-acrylamidopropyl)trimethylammonium chloride (p(APTMACl)) microgels were synthesized by photo-initiated inverse suspension polymerization technique. These microgels were utilized as absorbents for the removal of toxic arsenate (As) from different aqueous environments. The experimental parameters affecting absorption efficiency were investigated, and it was demonstrated that these types of microgels are highly efficient in removing arsenate anions from different aqueous environments compared to the previously reported bulk hydrogel, and cryogel of the same material. A removal efficiency of approximately 97.25% was obtained by immersing 0.5 g microgel in 250 ppm 100 mL solution of arsenate anions for 60 min. Both Langmuir and Freundlich adsorption isotherms were applied to adsorption ...","ai_title_tag":"Efficient Arsenate Removal Using Cationic Microgels","publication_date":"2015,1,23","publication_name":"Journal of environmental management"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels","broadcastable":false,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [274042489]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "control"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div class="ds-work-card--container js-loswp-work-card"><div class="ds-work-card--cover"><div class="ds-work-cover--wrapper"><div class="ds-work-cover--container"><button class="ds-work-cover--clickable js-swp-download-button" data-signup-modal="{"location":"swp-splash-paper-cover","attachmentId":103473819,"attachmentType":"pdf"}"><img alt="First page of “Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels”" class="ds-work-cover--cover-thumbnail" src="https://0.academia-photos.com/attachment_thumbnails/103473819/mini_magick20230617-1-qlah9.png?1687010742" /><img alt="PDF Icon" class="ds-work-cover--file-icon" src="//a.academia-assets.com/assets/single_work_splash/adobe.icon-574afd46eb6b03a77a153a647fb47e30546f9215c0ee6a25df597a779717f9ef.svg" /><div class="ds-work-cover--hover-container"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span><p>Download Free PDF</p></div><div class="ds-work-cover--ribbon-container">Download Free PDF</div><div class="ds-work-cover--ribbon-triangle"></div></button></div></div></div><div class="ds-work-card--work-information"><h1 class="ds-work-card--work-title">Fast removal of high quantities of toxic arsenate via cationic p(APTMACl) microgels</h1><div class="ds-work-card--work-authors ds-work-card--detail"><a class="ds-work-card--author js-wsj-grid-card-author ds2-5-body-md ds2-5-body-link" data-author-id="274042489" href="https://independent.academia.edu/MohammedSiddiq48"><img alt="Profile image of Mohammed Siddiq" class="ds-work-card--author-avatar" src="https://0.academia-photos.com/274042489/123800865/113152188/s65_mohammed.siddiq.png" />Mohammed Siddiq</a></div><div class="ds-work-card--detail"><p class="ds-work-card--detail ds2-5-body-sm">2015, Journal of environmental management</p></div><p class="ds-work-card--work-abstract ds-work-card--detail ds2-5-body-md">Hydrogels are resourceful materials and can be prepared in different morphology, size, surface charge and porosity adopting different polymerization techniques and reaction conditions. The cationic poly(3-acrylamidopropyl)trimethylammonium chloride (p(APTMACl)) microgels were synthesized by photo-initiated inverse suspension polymerization technique. These microgels were utilized as absorbents for the removal of toxic arsenate (As) from different aqueous environments. The experimental parameters affecting absorption efficiency were investigated, and it was demonstrated that these types of microgels are highly efficient in removing arsenate anions from different aqueous environments compared to the previously reported bulk hydrogel, and cryogel of the same material. A removal efficiency of approximately 97.25% was obtained by immersing 0.5 g microgel in 250 ppm 100 mL solution of arsenate anions for 60 min. Both Langmuir and Freundlich adsorption isotherms were applied to adsorption ...</p><div class="ds-work-card--button-container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--work-card","attachmentId":103473819,"attachmentType":"pdf","workUrl":"https://www.academia.edu/103476032/Fast_removal_of_high_quantities_of_toxic_arsenate_via_cationic_p_APTMACl_microgels"}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--work-card","attachmentId":103473819,"attachmentType":"pdf","workUrl":"https://www.academia.edu/103476032/Fast_removal_of_high_quantities_of_toxic_arsenate_via_cationic_p_APTMACl_microgels"}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div></div><div data-auto_select="false" data-client_id="331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b" data-doc_id="103473819" data-landing_url="https://www.academia.edu/103476032/Fast_removal_of_high_quantities_of_toxic_arsenate_via_cationic_p_APTMACl_microgels" data-login_uri="https://www.academia.edu/registrations/google_one_tap" data-moment_callback="onGoogleOneTapEvent" id="g_id_onload"></div><div class="ds-top-related-works--grid-container"><div class="ds-related-content--container ds-top-related-works--container"><h2 class="ds-related-content--heading">Related papers</h2><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="0" data-entity-id="123529128" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/123529128/Removal_of_Arsenate_by_Fixed_Bed_Columns_Using_Chitosan_Magnetite_Hydrogel_Beads_and_Chitosan_Hydrogel_Beads_Effect_of_the_Operating_Conditions_on_Column_Efficiency">Removal of Arsenate by Fixed-Bed Columns Using Chitosan-Magnetite Hydrogel Beads and Chitosan Hydrogel Beads: Effect of the Operating Conditions on Column Efficiency</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="298072209" href="https://independent.academia.edu/PAULINANAVARRO67">PAULINA NAVARRO</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Gels</p><p class="ds-related-work--abstract ds2-5-body-sm">Fixed-bed columns packed with chitosan-magnetite (ChM) hydrogel and chitosan (Ch) hydrogel were used for the removal of arsenate ions from aqueous solutions at a pH of 7.0. 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When 33 cm-high columns were fed with a 10 mg As(V...</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Removal of Arsenate by Fixed-Bed Columns Using Chitosan-Magnetite Hydrogel Beads and Chitosan Hydrogel Beads: Effect of the Operating Conditions on Column Efficiency","attachmentId":117939544,"attachmentType":"pdf","work_url":"https://www.academia.edu/123529128/Removal_of_Arsenate_by_Fixed_Bed_Columns_Using_Chitosan_Magnetite_Hydrogel_Beads_and_Chitosan_Hydrogel_Beads_Effect_of_the_Operating_Conditions_on_Column_Efficiency","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" 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href="https://www.academia.edu/6572781/Enhanced_Adsorption_of_Arsenate_on_the_Aminated_Fibers_Sorption_Behavior_and_Uptake_Mechanism"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="5" data-entity-id="37628496" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/37628496/Poly_N_isopropylmethacrylamide_acrylic_acid_microgels_as_adsorbent_for_removal_of_toxic_dyes_from_aqueous_medium">Poly(N-isopropylmethacrylamide-acrylic acid) microgels as adsorbent for removal of toxic dyes from aqueous medium</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="10633118" href="https://qau-us.academia.edu/Jawayrianajeeb">Jawayria najeeb</a></div><p class="ds-related-work--abstract ds2-5-body-sm">Poly(N-isopropylmethacrylamide-acrylic acid) [pniM-Ac] microgel particles were synthesized by surfactant free radical precipitation polymerization method. Microgel particles were used as adsorbent for the removal of toxic dyes such as Congo red (CR) (anionic), methylene blue (MB) (cationic) and Rhodamine B (Rh-B) (cationic) from aqueous medium at ambient temperature. Due to presence of carboxylate groups inside the polymer chains of microgel particles, uptake of cationic dyes such as MB and Rh-B was high as compared to anionic dye CR at low temperature and high pH of the medium. But at high temperature, microgel particles were shrunken and their hydrophobicity was increased. Under such conditions, uptake of anionic dye CR was high due to increased hydrophobic interaction between polymer chains of microgel particles and dye molecules. Effect of dye concentration, adsorbent dose, pH of the medium and agitation time on the percentage removal of dyes was also investigated and their optimum values were determined. Langmuir isotherm model best explained the adsorption of CR, MB and Rh-B on microgel particles. Pseudo second order has well explained the kinetics of adsorption of all dyes onmicrogel system as compared to other kinetic models as reflected by the values of regression coefficients (R2). Mechanism of adsorption of all dyes on microgel particles was explained by intra-particle diffusion model. Microgel particles also showed high capacity to extract toxic dyes simultaneously from aqueous medium as compared to their individual adsorption. Pure and dye loaded microgel particles were analyzed by UV-visible (UV-vis) spectroscopy and Fourier transform infrared (FTIR) spectrometry. Size and morphology of microgel particles were investigated by transmission electron microscopy (TEM).</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Poly(N-isopropylmethacrylamide-acrylic acid) microgels as adsorbent for removal of toxic dyes from aqueous medium","attachmentId":57612977,"attachmentType":"pdf","work_url":"https://www.academia.edu/37628496/Poly_N_isopropylmethacrylamide_acrylic_acid_microgels_as_adsorbent_for_removal_of_toxic_dyes_from_aqueous_medium","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/37628496/Poly_N_isopropylmethacrylamide_acrylic_acid_microgels_as_adsorbent_for_removal_of_toxic_dyes_from_aqueous_medium"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="6" data-entity-id="110943754" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/110943754/Arsenate_removal_from_aqueous_solutions_using_micellar_enhanced_ultrafiltration">Arsenate removal from aqueous solutions using micellar-enhanced ultrafiltration</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="71044629" href="https://independent.academia.edu/MehrdadKhamforoush">Mehrdad Khamforoush</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of environmental health science & engineering, 2019</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Arsenate removal from aqueous solutions using micellar-enhanced ultrafiltration","attachmentId":108604057,"attachmentType":"pdf","work_url":"https://www.academia.edu/110943754/Arsenate_removal_from_aqueous_solutions_using_micellar_enhanced_ultrafiltration","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/110943754/Arsenate_removal_from_aqueous_solutions_using_micellar_enhanced_ultrafiltration"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="28115013" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/28115013/Water_Soluble_Polymer_and_Photocatalysis_for_Arsenic_Removal">Water-Soluble Polymer and Photocatalysis for Arsenic Removal</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="52944279" href="https://independent.academia.edu/NKabay">Nalan Kabay</a><span>, </span><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32011861" href="https://pwr-wroc.academia.edu/MBryjak">M. Bryjak</a></div><p class="ds-related-work--abstract ds2-5-body-sm">In this study, the photocatalytic oxidation of hazardous arsenite (As(III)) to arsenate (As(V)) and the sequential removal of arsenate from aqueous solution by liquid-phase polymer-based retention (LPR) were investigated. The photocatalytic oxidation of arsenite was performed using TiO 2 (P25 Degussa, Germany) under UV-A light. The optimal photocatalytic conditions to oxidize 10 mg L 21 of arsenite solution were achieved using a 0.5 g L 21 of catalyst at a pH value of 2. The As(III) oxidation reached 100% after 30 min of illumination with UV-A light. A water-soluble polymer containing quaternary ammonium groups, poly(3-acrylamidopro-pyl)trimethylammonium chloride (P(ClAPTA)), was used as an extracting reagent in the LPR process. To obtain the optimized conditions , the removal experiments were performed at various polymer : As(V) molar ratios using 10 mg L 21 of arsenate solutions. After the oxidation of As(III) to As(V), the removal of arsenate by P(ClAPTA) was obtained in a 99% yield using a 20 : 1 polymer : As(V) molar ratio at a pH value of 9. The results demonstrate that the combination of these methods is highly useful for potential applications related to the treatment of wastewater contaminated with As(III). V</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Water-Soluble Polymer and Photocatalysis for Arsenic Removal","attachmentId":48430591,"attachmentType":"pdf","work_url":"https://www.academia.edu/28115013/Water_Soluble_Polymer_and_Photocatalysis_for_Arsenic_Removal","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/28115013/Water_Soluble_Polymer_and_Photocatalysis_for_Arsenic_Removal"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="108168760" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/108168760/Equilibrium_and_kinetics_study_on_removal_of_arsenate_ions_from_aqueous_solution_by_CTAB_TiO2_and_starch_CTAB_TiO2_nanoparticles_a_comparative_study">Equilibrium and kinetics study on removal of arsenate ions from aqueous solution by CTAB/TiO2 and starch/CTAB/TiO2 nanoparticles: a comparative study</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="279261202" href="https://independent.academia.edu/PankajGogoi26">Pankaj Gogoi</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Water and Health, 2016</p><p class="ds-related-work--abstract ds2-5-body-sm">We present a comparative study on the efficacy of TiO2 nanoparticles for arsenate ion removal after modification with CTAB (N-cetyl-N,N,N-trimethyl ammonium bromide) followed by coating with starch biopolymer. The prepared nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), thermogravimetry, scanning electron microscopy (SEM) and electron dispersive X-ray analysis (EDX). The removal efficiency was studied as a function of contact time, material dose and initial As(V) concentration. CTAB-modified TiO2 showed the highest arsenate ion removal rate (∼99% from 400 μg/L). Starch-coated CTAB-modified TiO2 was found to be best for regeneration. For a targeted solution of 400 μg/L, a material dose of 2 g/L was found to be sufficient to reduce the As(V) concentration below 10 μg/L. Equilibrium was established within 90 minutes of treatment. The sorption pattern followed a Langmuir monolayer pattern, and the maximum sorption capacity...</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Equilibrium and kinetics study on removal of arsenate ions from aqueous solution by CTAB/TiO2 and starch/CTAB/TiO2 nanoparticles: a comparative study","attachmentId":106623290,"attachmentType":"pdf","work_url":"https://www.academia.edu/108168760/Equilibrium_and_kinetics_study_on_removal_of_arsenate_ions_from_aqueous_solution_by_CTAB_TiO2_and_starch_CTAB_TiO2_nanoparticles_a_comparative_study","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/108168760/Equilibrium_and_kinetics_study_on_removal_of_arsenate_ions_from_aqueous_solution_by_CTAB_TiO2_and_starch_CTAB_TiO2_nanoparticles_a_comparative_study"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="37632927" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/37632927/Kinetic_studies_on_bioadsorption_of_arsenate_fromaqueous_solutions_using_chitosan">Kinetic studies on bioadsorption of arsenate fromaqueous solutions using chitosan</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="89280453" href="https://cdj.academia.edu/JournalofAdvancesinEnvironmentalHealthResearchJAEHR">Journal of Advances in Environmental Health Research (JAEHR)</a></div><p class="ds-related-work--abstract ds2-5-body-sm">Arsenic, one of the most toxic and dangerous elements in the environment affecting millions of people around the world, is associated with several diseases. In this pilot study, we investigated removal of arsenate from aqueous solutions using chitosan under the influences of initial arsenic ion concentrations, pH, contact time, and adsorbent dosages of chitosan. In order to assess the sorption mechanism and the potential rate of controlling steps, the pseudo-first and pseudo-second order kinetic models and the Langmuir and Freundlich isotherm models were used. The obtained results showed that the removal of As(V) by chitosan was found to be pH dependent, with optimum sorption occurring at pH = 4. The kinetics of arsenate adsorption on chitosan is well described by the pseudo-second order model. Furthermore, As (V) sorption isotherm was developed at optimal conditions and sorption equilibrium data were fitted to the Freundlich isotherm model. Citation: Jaafarzadeh N, Mengelizadeh N, Takdastan A, Haji-Amadi M. Kinetic studies on bioadsorption of arsenate from aqueous solutions using chitosan. J Adv Environ Health Res 2014; 2(1): 7-12</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Kinetic studies on bioadsorption of arsenate fromaqueous solutions using chitosan","attachmentId":57617781,"attachmentType":"pdf","work_url":"https://www.academia.edu/37632927/Kinetic_studies_on_bioadsorption_of_arsenate_fromaqueous_solutions_using_chitosan","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/37632927/Kinetic_studies_on_bioadsorption_of_arsenate_fromaqueous_solutions_using_chitosan"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":103473819,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":103473819,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_103473819" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. 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data-author-id="279261202" href="https://independent.academia.edu/PankajGogoi26">Pankaj Gogoi</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Environmental Chemical Engineering, 2016</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"A comparative study on sorption of arsenate ions from water by crosslinked chitosan and crosslinked chitosan/MMT nanocomposite","attachmentId":106623338,"attachmentType":"pdf","work_url":"https://www.academia.edu/108168758/A_comparative_study_on_sorption_of_arsenate_ions_from_water_by_crosslinked_chitosan_and_crosslinked_chitosan_MMT_nanocomposite","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline 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data-collection-position="3" data-entity-id="75522684" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/75522684/Waste_sludge_derived_adsorbents_for_arsenate_removal_from_water">Waste sludge derived adsorbents for arsenate removal from water</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="41242650" href="https://hanyang.academia.edu/ByongHunJeon">Byong Hun Jeon</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemosphere</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Waste sludge derived adsorbents for arsenate removal from 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