Kinetics of diuron and amitrole adsorption from aqueous solution on activated carbons
A study was conducted on the adsorption kinetics of diuron and amitrole from aqueous solutions on activated carbons of different particle sizes and on an activated carbon fiber. Different kinetic models were applied to the experimental results obtained. A pseudo-second-order rate equation fitted the...
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| Veröffentlicht in: | Journal of hazardous materials 2008-08, Vol.156 (1), p.472-477 |
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| creator | Fontecha-Cámara, M.A. López-Ramón, M.V. Pastrana-Martínez, L.M. Moreno-Castilla, C. |
| description | A study was conducted on the adsorption kinetics of diuron and amitrole from aqueous solutions on activated carbons of different particle sizes and on an activated carbon fiber. Different kinetic models were applied to the experimental results obtained. A pseudo-second-order rate equation fitted the adsorption kinetics data better than a pseudo-first-order rate equation. Amitrole showed faster adsorption kinetics compared with diuron because of the smaller size of the former herbicide, despite its lower driving force for adsorption. Both reaction rate constants increased when the particle size decreased. The activated carbon fiber and the activated carbon of smallest particle size (0.03
mm) showed similar adsorption kinetics. The intraparticle diffusion rate constant increased with higher initial concentration of herbicides in solution and with lower particle size of the adsorbent. This is because the rise in initial concentration increased the amount adsorbed at equilibrium, and the reduction in particle size increased the number of collisions between adsorbate and adsorbent particles. Demineralization of the activated carbon with particle size of 0.5
mm had practically no effect on the adsorption kinetics. |
| doi_str_mv | 10.1016/j.jhazmat.2007.12.043 |
| format | Article |
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mm) showed similar adsorption kinetics. The intraparticle diffusion rate constant increased with higher initial concentration of herbicides in solution and with lower particle size of the adsorbent. This is because the rise in initial concentration increased the amount adsorbed at equilibrium, and the reduction in particle size increased the number of collisions between adsorbate and adsorbent particles. Demineralization of the activated carbon with particle size of 0.5
mm had practically no effect on the adsorption kinetics.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2007.12.043</identifier><identifier>PMID: 18241982</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Activated carbon ; Activated carbons ; Adsorbates ; Adsorbents ; Adsorption ; Amitrole - chemistry ; Amitrole adsorption ; Applied sciences ; Carbon - chemistry ; Chemical engineering ; Collisions ; Demineralizing ; Diffusion rate ; Diuron ; Diuron - chemistry ; Diuron adsorption ; Driving ; Exact sciences and technology ; Fibers ; Herbicides ; Herbicides - chemistry ; Kinetic models ; Kinetics ; Mathematical analysis ; Mathematical models ; Particle size ; Pollution ; Rate constants ; Reaction kinetics ; Reduction ; Solutions ; Water - chemistry</subject><ispartof>Journal of hazardous materials, 2008-08, Vol.156 (1), p.472-477</ispartof><rights>2007 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c455t-e289513c3c5c53066d8b264712480dce90f1bd8efb446da247110d71f186ad253</citedby><cites>FETCH-LOGICAL-c455t-e289513c3c5c53066d8b264712480dce90f1bd8efb446da247110d71f186ad253</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jhazmat.2007.12.043$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20453625$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18241982$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Fontecha-Cámara, M.A.</creatorcontrib><creatorcontrib>López-Ramón, M.V.</creatorcontrib><creatorcontrib>Pastrana-Martínez, L.M.</creatorcontrib><creatorcontrib>Moreno-Castilla, C.</creatorcontrib><title>Kinetics of diuron and amitrole adsorption from aqueous solution on activated carbons</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>A study was conducted on the adsorption kinetics of diuron and amitrole from aqueous solutions on activated carbons of different particle sizes and on an activated carbon fiber. Different kinetic models were applied to the experimental results obtained. A pseudo-second-order rate equation fitted the adsorption kinetics data better than a pseudo-first-order rate equation. Amitrole showed faster adsorption kinetics compared with diuron because of the smaller size of the former herbicide, despite its lower driving force for adsorption. Both reaction rate constants increased when the particle size decreased. The activated carbon fiber and the activated carbon of smallest particle size (0.03
mm) showed similar adsorption kinetics. The intraparticle diffusion rate constant increased with higher initial concentration of herbicides in solution and with lower particle size of the adsorbent. This is because the rise in initial concentration increased the amount adsorbed at equilibrium, and the reduction in particle size increased the number of collisions between adsorbate and adsorbent particles. Demineralization of the activated carbon with particle size of 0.5
mm had practically no effect on the adsorption kinetics.</description><subject>Activated carbon</subject><subject>Activated carbons</subject><subject>Adsorbates</subject><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Amitrole - chemistry</subject><subject>Amitrole adsorption</subject><subject>Applied sciences</subject><subject>Carbon - chemistry</subject><subject>Chemical engineering</subject><subject>Collisions</subject><subject>Demineralizing</subject><subject>Diffusion rate</subject><subject>Diuron</subject><subject>Diuron - chemistry</subject><subject>Diuron adsorption</subject><subject>Driving</subject><subject>Exact sciences and technology</subject><subject>Fibers</subject><subject>Herbicides</subject><subject>Herbicides - chemistry</subject><subject>Kinetic models</subject><subject>Kinetics</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Particle size</subject><subject>Pollution</subject><subject>Rate constants</subject><subject>Reaction kinetics</subject><subject>Reduction</subject><subject>Solutions</subject><subject>Water - chemistry</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkM1u1TAQRi0EoreFRwBlA7uEGf_FWSFUAUVUYkPXlmM7wldJfLGdSvTpSXojWHZlaXy-8edDyBuEBgHlh2Nz_GUeJlMaCtA2SBvg7Bk5oGpZzRiTz8kBGPCaqY5fkMucjwCAreAvyQUqyrFT9EDuvofZl2BzFYfKhSXFuTKzq8wUSoqjr4zLMZ1KWOdDilNlfi8-LrnKcVwep1vAlnBvineVNamPc35FXgxmzP71fl6Ruy-ff17f1Lc_vn67_nRbWy5EqT1VnUBmmRVWMJDSqZ5K3iLlCpz1HQzYO-WHnnPpDF1vEFyLAyppHBXsirw_7z2luPbKRU8hWz-OZt5KasaEaIG1T4LYyY4xtW0UZ9CmmHPygz6lMJn0RyPoTbw-6l283sRrpHoVv-be7g8s_eTd_9RuegXe7YDJ1oxDMrMN-R9HgQsmH7_08cz51dt98ElnG_xsvQvJ26JdDE9U-Qufh6Qd</recordid><startdate>20080815</startdate><enddate>20080815</enddate><creator>Fontecha-Cámara, M.A.</creator><creator>López-Ramón, M.V.</creator><creator>Pastrana-Martínez, L.M.</creator><creator>Moreno-Castilla, C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</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>7TV</scope><scope>7U7</scope><scope>C1K</scope><scope>7SU</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20080815</creationdate><title>Kinetics of diuron and amitrole adsorption from aqueous solution on activated carbons</title><author>Fontecha-Cámara, M.A. ; López-Ramón, M.V. ; Pastrana-Martínez, L.M. ; Moreno-Castilla, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-e289513c3c5c53066d8b264712480dce90f1bd8efb446da247110d71f186ad253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Activated carbon</topic><topic>Activated carbons</topic><topic>Adsorbates</topic><topic>Adsorbents</topic><topic>Adsorption</topic><topic>Amitrole - chemistry</topic><topic>Amitrole adsorption</topic><topic>Applied sciences</topic><topic>Carbon - chemistry</topic><topic>Chemical engineering</topic><topic>Collisions</topic><topic>Demineralizing</topic><topic>Diffusion rate</topic><topic>Diuron</topic><topic>Diuron - chemistry</topic><topic>Diuron adsorption</topic><topic>Driving</topic><topic>Exact sciences and technology</topic><topic>Fibers</topic><topic>Herbicides</topic><topic>Herbicides - chemistry</topic><topic>Kinetic models</topic><topic>Kinetics</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Particle size</topic><topic>Pollution</topic><topic>Rate constants</topic><topic>Reaction kinetics</topic><topic>Reduction</topic><topic>Solutions</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fontecha-Cámara, M.A.</creatorcontrib><creatorcontrib>López-Ramón, M.V.</creatorcontrib><creatorcontrib>Pastrana-Martínez, L.M.</creatorcontrib><creatorcontrib>Moreno-Castilla, C.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environmental Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fontecha-Cámara, M.A.</au><au>López-Ramón, M.V.</au><au>Pastrana-Martínez, L.M.</au><au>Moreno-Castilla, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Kinetics of diuron and amitrole adsorption from aqueous solution on activated carbons</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2008-08-15</date><risdate>2008</risdate><volume>156</volume><issue>1</issue><spage>472</spage><epage>477</epage><pages>472-477</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>A study was conducted on the adsorption kinetics of diuron and amitrole from aqueous solutions on activated carbons of different particle sizes and on an activated carbon fiber. Different kinetic models were applied to the experimental results obtained. A pseudo-second-order rate equation fitted the adsorption kinetics data better than a pseudo-first-order rate equation. Amitrole showed faster adsorption kinetics compared with diuron because of the smaller size of the former herbicide, despite its lower driving force for adsorption. Both reaction rate constants increased when the particle size decreased. The activated carbon fiber and the activated carbon of smallest particle size (0.03
mm) showed similar adsorption kinetics. The intraparticle diffusion rate constant increased with higher initial concentration of herbicides in solution and with lower particle size of the adsorbent. This is because the rise in initial concentration increased the amount adsorbed at equilibrium, and the reduction in particle size increased the number of collisions between adsorbate and adsorbent particles. Demineralization of the activated carbon with particle size of 0.5
mm had practically no effect on the adsorption kinetics.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>18241982</pmid><doi>10.1016/j.jhazmat.2007.12.043</doi><tpages>6</tpages></addata></record> |
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| subjects | Activated carbon Activated carbons Adsorbates Adsorbents Adsorption Amitrole - chemistry Amitrole adsorption Applied sciences Carbon - chemistry Chemical engineering Collisions Demineralizing Diffusion rate Diuron Diuron - chemistry Diuron adsorption Driving Exact sciences and technology Fibers Herbicides Herbicides - chemistry Kinetic models Kinetics Mathematical analysis Mathematical models Particle size Pollution Rate constants Reaction kinetics Reduction Solutions Water - chemistry |
| title | Kinetics of diuron and amitrole adsorption from aqueous solution on activated carbons |
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