Water-Dispersible Magnetite-Reduced Graphene Oxide Composites for Arsenic Removal
Magnetite−graphene hybrids have been synthesized via a chemical reaction with a magnetite particle size of ∼10 nm. The composites are superparamagnetic at room temperature and can be separated by an external magnetic field. As compared to bare magnetite particles, the hybrids show a high binding cap...
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| Veröffentlicht in: | ACS nano 2010-07, Vol.4 (7), p.3979-3986 |
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| creator | Chandra, Vimlesh Park, Jaesung Chun, Young Lee, Jung Woo Hwang, In-Chul Kim, Kwang S. |
| description | Magnetite−graphene hybrids have been synthesized via a chemical reaction with a magnetite particle size of ∼10 nm. The composites are superparamagnetic at room temperature and can be separated by an external magnetic field. As compared to bare magnetite particles, the hybrids show a high binding capacity for As(III) and As(V), whose presence in the drinking water in wide areas of South Asia has been a huge problem. Their high binding capacity is due to the increased adsorption sites in the M−RGO composite which occurs by reducing the aggregation of bare magnetite. Since the composites show near complete (over 99.9%) arsenic removal within 1 ppb, they are practically usable for arsenic separation from water. |
| doi_str_mv | 10.1021/nn1008897 |
| format | Article |
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The composites are superparamagnetic at room temperature and can be separated by an external magnetic field. As compared to bare magnetite particles, the hybrids show a high binding capacity for As(III) and As(V), whose presence in the drinking water in wide areas of South Asia has been a huge problem. Their high binding capacity is due to the increased adsorption sites in the M−RGO composite which occurs by reducing the aggregation of bare magnetite. Since the composites show near complete (over 99.9%) arsenic removal within 1 ppb, they are practically usable for arsenic separation from water.</description><identifier>ISSN: 1936-0851</identifier><identifier>EISSN: 1936-086X</identifier><identifier>DOI: 10.1021/nn1008897</identifier><identifier>PMID: 20552997</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Absorption ; Arsenic - chemistry ; Arsenic - isolation & purification ; Ferrosoferric Oxide - chemistry ; Graphite - chemistry ; Hydrogen-Ion Concentration ; Kinetics ; Oxidation-Reduction ; Oxides - chemistry ; Spectrum Analysis, Raman ; Temperature ; Water - chemistry ; Water Pollutants, Chemical - chemistry ; Water Pollutants, Chemical - isolation & purification ; Water Purification - methods</subject><ispartof>ACS nano, 2010-07, Vol.4 (7), p.3979-3986</ispartof><rights>Copyright © 2010 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a314t-4e58d725216016e1a22cf7e3b6de3119842c8dfc629e448fa51161cedce883c53</citedby><cites>FETCH-LOGICAL-a314t-4e58d725216016e1a22cf7e3b6de3119842c8dfc629e448fa51161cedce883c53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/nn1008897$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/nn1008897$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,777,781,2752,27057,27905,27906,56719,56769</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20552997$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chandra, Vimlesh</creatorcontrib><creatorcontrib>Park, Jaesung</creatorcontrib><creatorcontrib>Chun, Young</creatorcontrib><creatorcontrib>Lee, Jung Woo</creatorcontrib><creatorcontrib>Hwang, In-Chul</creatorcontrib><creatorcontrib>Kim, Kwang S.</creatorcontrib><title>Water-Dispersible Magnetite-Reduced Graphene Oxide Composites for Arsenic Removal</title><title>ACS nano</title><addtitle>ACS Nano</addtitle><description>Magnetite−graphene hybrids have been synthesized via a chemical reaction with a magnetite particle size of ∼10 nm. The composites are superparamagnetic at room temperature and can be separated by an external magnetic field. As compared to bare magnetite particles, the hybrids show a high binding capacity for As(III) and As(V), whose presence in the drinking water in wide areas of South Asia has been a huge problem. Their high binding capacity is due to the increased adsorption sites in the M−RGO composite which occurs by reducing the aggregation of bare magnetite. Since the composites show near complete (over 99.9%) arsenic removal within 1 ppb, they are practically usable for arsenic separation from water.</description><subject>Absorption</subject><subject>Arsenic - chemistry</subject><subject>Arsenic - isolation & purification</subject><subject>Ferrosoferric Oxide - chemistry</subject><subject>Graphite - chemistry</subject><subject>Hydrogen-Ion Concentration</subject><subject>Kinetics</subject><subject>Oxidation-Reduction</subject><subject>Oxides - chemistry</subject><subject>Spectrum Analysis, Raman</subject><subject>Temperature</subject><subject>Water - chemistry</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Pollutants, Chemical - isolation & purification</subject><subject>Water Purification - methods</subject><issn>1936-0851</issn><issn>1936-086X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0E1Lw0AQBuBFFFurB_-A5CLiIbqzyX7kWKpWoVIsit7CdjPRlCSb7iai_95Ia0-eZg4PLzMvIadAr4AyuK5roFSpRO6RISSRCKkSb_u7ncOAHHm_opRLJcUhGTDKOUsSOSRPr7pFF94UvkHni2WJwaN-r7EtWgwXmHUGs2DqdPOBNQbzryLDYGKrxvoe-CC3Lhg7j3VhggVW9lOXx-Qg16XHk-0ckZe72-fJfTibTx8m41moI4jbMEauMsk4A0FBIGjGTC4xWooMI4BExcyoLDeCJRjHKtccQEB_jUGlIsOjEbnY5DbOrjv0bVoV3mBZ6hpt51MZq4SJCFgvLzfSOOu9wzxtXFFp950CTX8LTHcF9vZsm9otK8x28q-xHpxvgDY-XdnO1f2T_wT9AKXTdp8</recordid><startdate>20100727</startdate><enddate>20100727</enddate><creator>Chandra, Vimlesh</creator><creator>Park, Jaesung</creator><creator>Chun, Young</creator><creator>Lee, Jung Woo</creator><creator>Hwang, In-Chul</creator><creator>Kim, Kwang S.</creator><general>American Chemical Society</general><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>7X8</scope></search><sort><creationdate>20100727</creationdate><title>Water-Dispersible Magnetite-Reduced Graphene Oxide Composites for Arsenic Removal</title><author>Chandra, Vimlesh ; Park, Jaesung ; Chun, Young ; Lee, Jung Woo ; Hwang, In-Chul ; Kim, Kwang S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a314t-4e58d725216016e1a22cf7e3b6de3119842c8dfc629e448fa51161cedce883c53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Absorption</topic><topic>Arsenic - chemistry</topic><topic>Arsenic - isolation & purification</topic><topic>Ferrosoferric Oxide - chemistry</topic><topic>Graphite - chemistry</topic><topic>Hydrogen-Ion Concentration</topic><topic>Kinetics</topic><topic>Oxidation-Reduction</topic><topic>Oxides - chemistry</topic><topic>Spectrum Analysis, Raman</topic><topic>Temperature</topic><topic>Water - chemistry</topic><topic>Water Pollutants, Chemical - chemistry</topic><topic>Water Pollutants, Chemical - isolation & purification</topic><topic>Water Purification - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chandra, Vimlesh</creatorcontrib><creatorcontrib>Park, Jaesung</creatorcontrib><creatorcontrib>Chun, Young</creatorcontrib><creatorcontrib>Lee, Jung Woo</creatorcontrib><creatorcontrib>Hwang, In-Chul</creatorcontrib><creatorcontrib>Kim, Kwang S.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>ACS nano</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chandra, Vimlesh</au><au>Park, Jaesung</au><au>Chun, Young</au><au>Lee, Jung Woo</au><au>Hwang, In-Chul</au><au>Kim, Kwang S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Water-Dispersible Magnetite-Reduced Graphene Oxide Composites for Arsenic Removal</atitle><jtitle>ACS nano</jtitle><addtitle>ACS Nano</addtitle><date>2010-07-27</date><risdate>2010</risdate><volume>4</volume><issue>7</issue><spage>3979</spage><epage>3986</epage><pages>3979-3986</pages><issn>1936-0851</issn><eissn>1936-086X</eissn><abstract>Magnetite−graphene hybrids have been synthesized via a chemical reaction with a magnetite particle size of ∼10 nm. The composites are superparamagnetic at room temperature and can be separated by an external magnetic field. As compared to bare magnetite particles, the hybrids show a high binding capacity for As(III) and As(V), whose presence in the drinking water in wide areas of South Asia has been a huge problem. Their high binding capacity is due to the increased adsorption sites in the M−RGO composite which occurs by reducing the aggregation of bare magnetite. Since the composites show near complete (over 99.9%) arsenic removal within 1 ppb, they are practically usable for arsenic separation from water.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>20552997</pmid><doi>10.1021/nn1008897</doi><tpages>8</tpages></addata></record> |
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| subjects | Absorption Arsenic - chemistry Arsenic - isolation & purification Ferrosoferric Oxide - chemistry Graphite - chemistry Hydrogen-Ion Concentration Kinetics Oxidation-Reduction Oxides - chemistry Spectrum Analysis, Raman Temperature Water - chemistry Water Pollutants, Chemical - chemistry Water Pollutants, Chemical - isolation & purification Water Purification - methods |
| title | Water-Dispersible Magnetite-Reduced Graphene Oxide Composites for Arsenic Removal |
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