Perchlorate removal by quaternary amine modified reed
We report a kinetic and equilibrium study of perchlorate adsorption onto giant reed modified by quaternary amine (QA) functional groups in batch reactors. The effect of pH, contact time, and initial perchlorate concentration on removal was investigated. The adsorption capacity for perchlorate was 16...
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| Veröffentlicht in: | Journal of hazardous materials 2011-05, Vol.189 (1), p.54-61 |
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| creator | Baidas, Salem Gao, Baoyu Meng, Xiaoguang |
| description | We report a kinetic and equilibrium study of perchlorate adsorption onto giant reed modified by quaternary amine (QA) functional groups in batch reactors. The effect of pH, contact time, and initial perchlorate concentration on removal was investigated. The adsorption capacity for perchlorate was 169
mg/g on the modified reed (MR) particles ranging in size from 100 to 250
μm. The isotherm results were best described by the combined Langmuir–Freundlich equation. Optimum removal occurred in the pH range 3.5–7.0 and was reduced at pH
>
8.5. The maximum adsorption rate occurred within the first minute of contact and equilibrium was achieved within 7
min. A three-stage adsorption occurred. In stage 1, adsorption was rapid and was controlled by boundary layer diffusion. In stage 2, adsorption was gradual and was controlled by both boundary layer and intraparticle diffusion. In stage 3, adsorption reached a plateau. The kinetic results fit well with a pseudo second-order equation. The adsorption mechanism was explored using Zeta potential analysis and Raman spectroscopy. Zeta potential measurements showed that reed modification enhanced perchlorate removal by increasing the surface potential. Electrostatic attraction between perchlorate anion and positively charged quaternary amine groups on the MR was the primary mechanism responsible for perchlorate removal. |
| doi_str_mv | 10.1016/j.jhazmat.2011.01.124 |
| format | Article |
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mg/g on the modified reed (MR) particles ranging in size from 100 to 250
μm. The isotherm results were best described by the combined Langmuir–Freundlich equation. Optimum removal occurred in the pH range 3.5–7.0 and was reduced at pH
>
8.5. The maximum adsorption rate occurred within the first minute of contact and equilibrium was achieved within 7
min. A three-stage adsorption occurred. In stage 1, adsorption was rapid and was controlled by boundary layer diffusion. In stage 2, adsorption was gradual and was controlled by both boundary layer and intraparticle diffusion. In stage 3, adsorption reached a plateau. The kinetic results fit well with a pseudo second-order equation. The adsorption mechanism was explored using Zeta potential analysis and Raman spectroscopy. Zeta potential measurements showed that reed modification enhanced perchlorate removal by increasing the surface potential. Electrostatic attraction between perchlorate anion and positively charged quaternary amine groups on the MR was the primary mechanism responsible for perchlorate removal.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2011.01.124</identifier><identifier>PMID: 21377271</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Adsorption ; Amines ; Amines - chemistry ; Applied sciences ; Chemical engineering ; Contact ; Diffusion layers ; electrostatic interactions ; Environmental Restoration and Remediation - methods ; equations ; Exact sciences and technology ; Hydrogen-Ion Concentration ; Kinetics ; Mathematical analysis ; Modified reed ; Perchlorate ; Perchlorates ; Perchlorates - isolation & purification ; Poaceae - chemistry ; Pollution ; Quaternary Ammonium Compounds - chemistry ; Raman ; Raman spectroscopy ; Reactors ; Reeds ; Surface chemistry ; Thermodynamics ; Water Pollutants, Chemical - isolation & purification ; Water Purification - methods ; Zeta potential</subject><ispartof>Journal of hazardous materials, 2011-05, Vol.189 (1), p.54-61</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c483t-945ac701ed5efd242a1ae89a7aacf02930e856e1b3edf5e5a45079bf08e7dcf93</citedby><cites>FETCH-LOGICAL-c483t-945ac701ed5efd242a1ae89a7aacf02930e856e1b3edf5e5a45079bf08e7dcf93</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.2011.01.124$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24076207$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21377271$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Baidas, Salem</creatorcontrib><creatorcontrib>Gao, Baoyu</creatorcontrib><creatorcontrib>Meng, Xiaoguang</creatorcontrib><title>Perchlorate removal by quaternary amine modified reed</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>We report a kinetic and equilibrium study of perchlorate adsorption onto giant reed modified by quaternary amine (QA) functional groups in batch reactors. The effect of pH, contact time, and initial perchlorate concentration on removal was investigated. The adsorption capacity for perchlorate was 169
mg/g on the modified reed (MR) particles ranging in size from 100 to 250
μm. The isotherm results were best described by the combined Langmuir–Freundlich equation. Optimum removal occurred in the pH range 3.5–7.0 and was reduced at pH
>
8.5. The maximum adsorption rate occurred within the first minute of contact and equilibrium was achieved within 7
min. A three-stage adsorption occurred. In stage 1, adsorption was rapid and was controlled by boundary layer diffusion. In stage 2, adsorption was gradual and was controlled by both boundary layer and intraparticle diffusion. In stage 3, adsorption reached a plateau. The kinetic results fit well with a pseudo second-order equation. The adsorption mechanism was explored using Zeta potential analysis and Raman spectroscopy. Zeta potential measurements showed that reed modification enhanced perchlorate removal by increasing the surface potential. Electrostatic attraction between perchlorate anion and positively charged quaternary amine groups on the MR was the primary mechanism responsible for perchlorate removal.</description><subject>Adsorption</subject><subject>Amines</subject><subject>Amines - chemistry</subject><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>Contact</subject><subject>Diffusion layers</subject><subject>electrostatic interactions</subject><subject>Environmental Restoration and Remediation - methods</subject><subject>equations</subject><subject>Exact sciences and technology</subject><subject>Hydrogen-Ion Concentration</subject><subject>Kinetics</subject><subject>Mathematical analysis</subject><subject>Modified reed</subject><subject>Perchlorate</subject><subject>Perchlorates</subject><subject>Perchlorates - isolation & purification</subject><subject>Poaceae - chemistry</subject><subject>Pollution</subject><subject>Quaternary Ammonium Compounds - chemistry</subject><subject>Raman</subject><subject>Raman spectroscopy</subject><subject>Reactors</subject><subject>Reeds</subject><subject>Surface chemistry</subject><subject>Thermodynamics</subject><subject>Water Pollutants, Chemical - isolation & purification</subject><subject>Water Purification - methods</subject><subject>Zeta potential</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0V1rVDEQBuAgit1Wf4K6N6I35zj5Ojm5EilWhYKC9jrMJhOb5Xy0ydlC_fVm2VXv7FUgPJOZzMvYCw4tB96927bba_w14tIK4LwF3nKhHrEV741spJTdY7YCCaqRvVUn7LSULQBwo9VTdiK4NEYYvmL6G2V_PcwZF1pnGuc7HNab-_Xtrl7kCfP9Gsc00XqcQ4qJQkUUnrEnEYdCz4_nGbu6-Pjj_HNz-fXTl_MPl41XvVwaqzR6A5yCphiEEsiReosG0UcQVgL1uiO-kRSiJo1Kg7GbCD2Z4KOVZ-zN4d2bPN_uqCxuTMXTMOBE86643nRCKG3Vw7LjAqzUssq3_5XcGJC6B20q1Qfq81xKpuhuchrrThwHt0_Bbd0xBbdPwQF3NYVa9_LYYrcZKfyt-rP2Cl4fARaPQ8w4-VT-OQX1Y7Af4NXBRZwd_szVXH2vnXRN0oIVuor3B0E1hrtE2RWfaPIUUia_uDCnB4b9DSFvsFw</recordid><startdate>20110515</startdate><enddate>20110515</enddate><creator>Baidas, Salem</creator><creator>Gao, Baoyu</creator><creator>Meng, Xiaoguang</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><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>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>7X8</scope><scope>7ST</scope><scope>7U7</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>20110515</creationdate><title>Perchlorate removal by quaternary amine modified reed</title><author>Baidas, Salem ; Gao, Baoyu ; Meng, Xiaoguang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c483t-945ac701ed5efd242a1ae89a7aacf02930e856e1b3edf5e5a45079bf08e7dcf93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Adsorption</topic><topic>Amines</topic><topic>Amines - chemistry</topic><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>Contact</topic><topic>Diffusion layers</topic><topic>electrostatic interactions</topic><topic>Environmental Restoration and Remediation - methods</topic><topic>equations</topic><topic>Exact sciences and technology</topic><topic>Hydrogen-Ion Concentration</topic><topic>Kinetics</topic><topic>Mathematical analysis</topic><topic>Modified reed</topic><topic>Perchlorate</topic><topic>Perchlorates</topic><topic>Perchlorates - isolation & purification</topic><topic>Poaceae - chemistry</topic><topic>Pollution</topic><topic>Quaternary Ammonium Compounds - chemistry</topic><topic>Raman</topic><topic>Raman spectroscopy</topic><topic>Reactors</topic><topic>Reeds</topic><topic>Surface chemistry</topic><topic>Thermodynamics</topic><topic>Water Pollutants, Chemical - isolation & purification</topic><topic>Water Purification - methods</topic><topic>Zeta potential</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baidas, Salem</creatorcontrib><creatorcontrib>Gao, Baoyu</creatorcontrib><creatorcontrib>Meng, Xiaoguang</creatorcontrib><collection>AGRIS</collection><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>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>MEDLINE - Academic</collection><collection>Environment Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Baidas, Salem</au><au>Gao, Baoyu</au><au>Meng, Xiaoguang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Perchlorate removal by quaternary amine modified reed</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2011-05-15</date><risdate>2011</risdate><volume>189</volume><issue>1</issue><spage>54</spage><epage>61</epage><pages>54-61</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>We report a kinetic and equilibrium study of perchlorate adsorption onto giant reed modified by quaternary amine (QA) functional groups in batch reactors. The effect of pH, contact time, and initial perchlorate concentration on removal was investigated. The adsorption capacity for perchlorate was 169
mg/g on the modified reed (MR) particles ranging in size from 100 to 250
μm. The isotherm results were best described by the combined Langmuir–Freundlich equation. Optimum removal occurred in the pH range 3.5–7.0 and was reduced at pH
>
8.5. The maximum adsorption rate occurred within the first minute of contact and equilibrium was achieved within 7
min. A three-stage adsorption occurred. In stage 1, adsorption was rapid and was controlled by boundary layer diffusion. In stage 2, adsorption was gradual and was controlled by both boundary layer and intraparticle diffusion. In stage 3, adsorption reached a plateau. The kinetic results fit well with a pseudo second-order equation. The adsorption mechanism was explored using Zeta potential analysis and Raman spectroscopy. Zeta potential measurements showed that reed modification enhanced perchlorate removal by increasing the surface potential. Electrostatic attraction between perchlorate anion and positively charged quaternary amine groups on the MR was the primary mechanism responsible for perchlorate removal.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><pmid>21377271</pmid><doi>10.1016/j.jhazmat.2011.01.124</doi><tpages>8</tpages></addata></record> |
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| subjects | Adsorption Amines Amines - chemistry Applied sciences Chemical engineering Contact Diffusion layers electrostatic interactions Environmental Restoration and Remediation - methods equations Exact sciences and technology Hydrogen-Ion Concentration Kinetics Mathematical analysis Modified reed Perchlorate Perchlorates Perchlorates - isolation & purification Poaceae - chemistry Pollution Quaternary Ammonium Compounds - chemistry Raman Raman spectroscopy Reactors Reeds Surface chemistry Thermodynamics Water Pollutants, Chemical - isolation & purification Water Purification - methods Zeta potential |
| title | Perchlorate removal by quaternary amine modified reed |
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