Chitosan and chemically modified chitosan beads for acid dyes sorption
The capabilities of chitosan and chitosan-EGDE （ethylene glycol diglycidyl ether） beads for removing Acid Red 37 （AR 37） and Acid Blue 25 （AB 25） from aqueous solution were examined. Chitosan beads were cross-linked with EGDE to enhance its chemical resistance and mechanical strength. Experiments we...
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| Veröffentlicht in: | Journal of environmental sciences (China) 2009, Vol.21 (3), p.296-302 |
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| creator | AZLAN, Kamari WAN SAIME, Wan Ngah LAI KEN, Liew |
| description | The capabilities of chitosan and chitosan-EGDE （ethylene glycol diglycidyl ether） beads for removing Acid Red 37 （AR 37） and Acid Blue 25 （AB 25） from aqueous solution were examined. Chitosan beads were cross-linked with EGDE to enhance its chemical resistance and mechanical strength. Experiments were performed as a function ofpH, agitation period and concentration of AR 37 and AB 25. It was shown that the adsorption capacities of chitosan for both acid dyes were comparatively higher than those of chitosan- EGDE. This is mainly because cross-linking using EGDE reduces the major adsorption sites -NH3＋ on chitosan. Langmuir isotherm model showed the best conformity compared to Freundlich and BET. The kinetic experimental data agreed very well to the pseudo second-order kinetic model. The desorption study revealed that after three cycles of adsorption and desorption by NaOH and HCl, both adsorbents retained their promising adsorption abilities. FT-IR analysis proved that the adsorption of acid dyes onto chitosan-based adsorbents was a physical adsorption. Results also showed that chitosan and chitosan-EGDE beads were favourable adsorbers and could be employed as low-cost alternatives for the removal of acid dyes in wastewater treatment. |
| doi_str_mv | 10.1016/s1001-0742(08)62267-6 |
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Chitosan beads were cross-linked with EGDE to enhance its chemical resistance and mechanical strength. Experiments were performed as a function ofpH, agitation period and concentration of AR 37 and AB 25. It was shown that the adsorption capacities of chitosan for both acid dyes were comparatively higher than those of chitosan- EGDE. This is mainly because cross-linking using EGDE reduces the major adsorption sites -NH3＋ on chitosan. Langmuir isotherm model showed the best conformity compared to Freundlich and BET. The kinetic experimental data agreed very well to the pseudo second-order kinetic model. The desorption study revealed that after three cycles of adsorption and desorption by NaOH and HCl, both adsorbents retained their promising adsorption abilities. FT-IR analysis proved that the adsorption of acid dyes onto chitosan-based adsorbents was a physical adsorption. Results also showed that chitosan and chitosan-EGDE beads were favourable adsorbers and could be employed as low-cost alternatives for the removal of acid dyes in wastewater treatment.</description><identifier>ISSN: 1001-0742</identifier><identifier>EISSN: 1878-7320</identifier><identifier>DOI: 10.1016/s1001-0742(08)62267-6</identifier><identifier>PMID: 19634439</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>acid dyes ; Acids - chemistry ; Adsorption ; adsorption capacities ; adsorption isotherm ; adsorption rates ; Anthraquinones - chemistry ; Chitosan - chemistry ; Coloring Agents - chemistry ; cross-linking ; Cross-Linking Reagents - chemistry ; desorption ; Hydrogen-Ion Concentration ; Materials Testing ; Rhodamines - chemistry ; Surface Properties ; Waste Disposal, Fluid ; Water Pollutants, Chemical - chemistry ; Water Purification - methods ; 动力学模型 ; 吸附能力 ; 壳聚糖微球 ; 实验数据 ; 改性壳聚糖 ; 糖化学 ; 缩水甘油醚 ; 酸性染料</subject><ispartof>Journal of environmental sciences (China), 2009, Vol.21 (3), p.296-302</ispartof><rights>2009 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences</rights><rights>Copyright © Wanfang Data Co. 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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c601t-17d8976d9cee9f6aab69464b3318c7ee2185297b3d6a96d11ba00fc087191e103</citedby><cites>FETCH-LOGICAL-c601t-17d8976d9cee9f6aab69464b3318c7ee2185297b3d6a96d11ba00fc087191e103</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85265X/85265X.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1001-0742(08)62267-6$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3552,4026,27930,27931,27932,46002</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19634439$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>AZLAN, Kamari</creatorcontrib><creatorcontrib>WAN SAIME, Wan Ngah</creatorcontrib><creatorcontrib>LAI KEN, Liew</creatorcontrib><title>Chitosan and chemically modified chitosan beads for acid dyes sorption</title><title>Journal of environmental sciences (China)</title><addtitle>Journal of Environmental Sciences</addtitle><description>The capabilities of chitosan and chitosan-EGDE （ethylene glycol diglycidyl ether） beads for removing Acid Red 37 （AR 37） and Acid Blue 25 （AB 25） from aqueous solution were examined. Chitosan beads were cross-linked with EGDE to enhance its chemical resistance and mechanical strength. Experiments were performed as a function ofpH, agitation period and concentration of AR 37 and AB 25. It was shown that the adsorption capacities of chitosan for both acid dyes were comparatively higher than those of chitosan- EGDE. This is mainly because cross-linking using EGDE reduces the major adsorption sites -NH3＋ on chitosan. Langmuir isotherm model showed the best conformity compared to Freundlich and BET. The kinetic experimental data agreed very well to the pseudo second-order kinetic model. The desorption study revealed that after three cycles of adsorption and desorption by NaOH and HCl, both adsorbents retained their promising adsorption abilities. FT-IR analysis proved that the adsorption of acid dyes onto chitosan-based adsorbents was a physical adsorption. Results also showed that chitosan and chitosan-EGDE beads were favourable adsorbers and could be employed as low-cost alternatives for the removal of acid dyes in wastewater treatment.</description><subject>acid dyes</subject><subject>Acids - chemistry</subject><subject>Adsorption</subject><subject>adsorption capacities</subject><subject>adsorption isotherm</subject><subject>adsorption rates</subject><subject>Anthraquinones - chemistry</subject><subject>Chitosan - chemistry</subject><subject>Coloring Agents - chemistry</subject><subject>cross-linking</subject><subject>Cross-Linking Reagents - chemistry</subject><subject>desorption</subject><subject>Hydrogen-Ion Concentration</subject><subject>Materials Testing</subject><subject>Rhodamines - chemistry</subject><subject>Surface Properties</subject><subject>Waste Disposal, Fluid</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Purification - methods</subject><subject>动力学模型</subject><subject>吸附能力</subject><subject>壳聚糖微球</subject><subject>实验数据</subject><subject>改性壳聚糖</subject><subject>糖化学</subject><subject>缩水甘油醚</subject><subject>酸性染料</subject><issn>1001-0742</issn><issn>1878-7320</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1u1DAUhS0Eoj_wCKCIBSqLwLWd-GdVoREFpEosgLXl2DcdD4k9tTOgeXsSJqjLrmxZ3_W5-g4hryi8p0DFh0IBaA2yYVeg3gnGhKzFE3JOlVS15Ayezvf_yBm5KGUHAE0L7XNyRrXgTcP1ObnZbMOUio2Vjb5yWxyDs8NwrMbkQx9weVuBDq0vVZ9yZV3wlT9iqUrK-ymk-II86-1Q8OV6XpKfN59-bL7Ut98-f918vK2dADrVVHqlpfDaIepeWNsJ3Yim45wqJxEZVS3TsuNeWC08pZ0F6B0oSTVFCvySvD39-8fG3sY7s0uHHOdEs8NikAFo4ADtA7jP6f6AZTJjKA6HwUZMh2J4I1krBX8UZLM_qdkS3Z5Al1MpGXuzz2G0-WgomKUS833xbRbfBpT5V4kR89zrNeDQjegfptYOZuD6BOAs7nfAbIoLGB36kNFNxqfwaMSbdbVtinf3YfbSWferDwMapoXSAoD_BWEHpMY</recordid><startdate>2009</startdate><enddate>2009</enddate><creator>AZLAN, Kamari</creator><creator>WAN SAIME, Wan Ngah</creator><creator>LAI KEN, Liew</creator><general>Elsevier B.V</general><general>Department of Chemistry, Faculty of Science and Technology, Universiti Pendidikan Sultan Idris, 35900 Perak, Malaysia%School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>2009</creationdate><title>Chitosan and chemically modified chitosan beads for acid dyes sorption</title><author>AZLAN, Kamari ; WAN SAIME, Wan Ngah ; LAI KEN, Liew</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c601t-17d8976d9cee9f6aab69464b3318c7ee2185297b3d6a96d11ba00fc087191e103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>acid dyes</topic><topic>Acids - chemistry</topic><topic>Adsorption</topic><topic>adsorption capacities</topic><topic>adsorption isotherm</topic><topic>adsorption rates</topic><topic>Anthraquinones - chemistry</topic><topic>Chitosan - chemistry</topic><topic>Coloring Agents - chemistry</topic><topic>cross-linking</topic><topic>Cross-Linking Reagents - chemistry</topic><topic>desorption</topic><topic>Hydrogen-Ion Concentration</topic><topic>Materials Testing</topic><topic>Rhodamines - chemistry</topic><topic>Surface Properties</topic><topic>Waste Disposal, Fluid</topic><topic>Water Pollutants, Chemical - chemistry</topic><topic>Water Purification - methods</topic><topic>动力学模型</topic><topic>吸附能力</topic><topic>壳聚糖微球</topic><topic>实验数据</topic><topic>改性壳聚糖</topic><topic>糖化学</topic><topic>缩水甘油醚</topic><topic>酸性染料</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>AZLAN, Kamari</creatorcontrib><creatorcontrib>WAN SAIME, Wan Ngah</creatorcontrib><creatorcontrib>LAI KEN, Liew</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of environmental sciences (China)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>AZLAN, Kamari</au><au>WAN SAIME, Wan Ngah</au><au>LAI KEN, Liew</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chitosan and chemically modified chitosan beads for acid dyes sorption</atitle><jtitle>Journal of environmental sciences (China)</jtitle><addtitle>Journal of Environmental Sciences</addtitle><date>2009</date><risdate>2009</risdate><volume>21</volume><issue>3</issue><spage>296</spage><epage>302</epage><pages>296-302</pages><issn>1001-0742</issn><eissn>1878-7320</eissn><abstract>The capabilities of chitosan and chitosan-EGDE （ethylene glycol diglycidyl ether） beads for removing Acid Red 37 （AR 37） and Acid Blue 25 （AB 25） from aqueous solution were examined. Chitosan beads were cross-linked with EGDE to enhance its chemical resistance and mechanical strength. Experiments were performed as a function ofpH, agitation period and concentration of AR 37 and AB 25. It was shown that the adsorption capacities of chitosan for both acid dyes were comparatively higher than those of chitosan- EGDE. This is mainly because cross-linking using EGDE reduces the major adsorption sites -NH3＋ on chitosan. Langmuir isotherm model showed the best conformity compared to Freundlich and BET. The kinetic experimental data agreed very well to the pseudo second-order kinetic model. The desorption study revealed that after three cycles of adsorption and desorption by NaOH and HCl, both adsorbents retained their promising adsorption abilities. FT-IR analysis proved that the adsorption of acid dyes onto chitosan-based adsorbents was a physical adsorption. Results also showed that chitosan and chitosan-EGDE beads were favourable adsorbers and could be employed as low-cost alternatives for the removal of acid dyes in wastewater treatment.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>19634439</pmid><doi>10.1016/s1001-0742(08)62267-6</doi><tpages>7</tpages></addata></record> |
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| subjects | acid dyes Acids - chemistry Adsorption adsorption capacities adsorption isotherm adsorption rates Anthraquinones - chemistry Chitosan - chemistry Coloring Agents - chemistry cross-linking Cross-Linking Reagents - chemistry desorption Hydrogen-Ion Concentration Materials Testing Rhodamines - chemistry Surface Properties Waste Disposal, Fluid Water Pollutants, Chemical - chemistry Water Purification - methods 动力学模型 吸附能力 壳聚糖微球 实验数据 改性壳聚糖 糖化学 缩水甘油醚 酸性染料 |
| title | Chitosan and chemically modified chitosan beads for acid dyes sorption |
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