Multilayer graphene coated vanadium(V) oxide as electrodes for intercalation based brackish water desalination
Present work explores graphene-coated vanadium pentoxide (G-V2O5) as novel electrosorption material for the desalination of low molarity saline/brackish water. During the desalination cycles, along with the electrical double layer formation at the graphene layer, ion intercalation is observed in the...
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| Veröffentlicht in: | 2d materials 2020-10, Vol.7 (4), p.45025 |
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| creator | Baburaj, Abhijit Puthirath, Anand B Jain, Amit Palanisamy, Duraivelan Salpekar, Devashish Balachandran, Janakiraman Kabbani, Mohamad A Hernandez, F C Robles Hughes, Gerry Babu, Ganguli Ajayan, Pulickel M |
| description | Present work explores graphene-coated vanadium pentoxide (G-V2O5) as novel electrosorption material for the desalination of low molarity saline/brackish water. During the desalination cycles, along with the electrical double layer formation at the graphene layer, ion intercalation is observed in the honeycomb structure of the hydrothermally grown V2O5 layer leading to an improvement in Na+ and Cl− ion removal from the brackish water. The conventional capacitance tests by pairing G-V2O5 electrodes in a three-electrode cell shows a remarkable capacitance value of 500 F g−1, and the capacitive deionization process over 50 cycles at 5, 10 and 15 mM concentration (NaCl) gives a maximum salt adsorption capacity of 12.5 mg of NaCl per gram of electrode. Utilizing the faradaic and non-faradaic process for electrosorption desalination paves a way towards exploring alternative materials and their hybrids for water purification applications. |
| doi_str_mv | 10.1088/2053-1583/aba5c9 |
| format | Article |
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During the desalination cycles, along with the electrical double layer formation at the graphene layer, ion intercalation is observed in the honeycomb structure of the hydrothermally grown V2O5 layer leading to an improvement in Na+ and Cl− ion removal from the brackish water. The conventional capacitance tests by pairing G-V2O5 electrodes in a three-electrode cell shows a remarkable capacitance value of 500 F g−1, and the capacitive deionization process over 50 cycles at 5, 10 and 15 mM concentration (NaCl) gives a maximum salt adsorption capacity of 12.5 mg of NaCl per gram of electrode. 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During the desalination cycles, along with the electrical double layer formation at the graphene layer, ion intercalation is observed in the honeycomb structure of the hydrothermally grown V2O5 layer leading to an improvement in Na+ and Cl− ion removal from the brackish water. The conventional capacitance tests by pairing G-V2O5 electrodes in a three-electrode cell shows a remarkable capacitance value of 500 F g−1, and the capacitive deionization process over 50 cycles at 5, 10 and 15 mM concentration (NaCl) gives a maximum salt adsorption capacity of 12.5 mg of NaCl per gram of electrode. Utilizing the faradaic and non-faradaic process for electrosorption desalination paves a way towards exploring alternative materials and their hybrids for water purification applications.</description><subject>2D materials</subject><subject>capacitive deionization</subject><subject>desalination</subject><subject>metal oxides</subject><subject>pseudocapacitance</subject><issn>2053-1583</issn><issn>2053-1583</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWGrvHnNUcG2y2Y_kKMUvqHhRr8tkkrWp26QkW7X_3q0V8eJphuF5X4aHkFPOLjmTcpqzUmS8lGIKGkpUB2T0ezr8sx-TSUpLxhivK1HwakT8w6brXQdbG-lrhPXCeksxQG8NfQcPxm1WZy_nNHw6YykkajuLfQzGJtqGSJ3vbUTooHfBUw1pyOkI-ObSgn4MNZEOKHTOfxMn5KiFLtnJzxyT55vrp9ldNn-8vZ9dzTPMJeszobguyooVCMqqVgiGWNdaIOYVLxUWUhngtZCyVjrXWObKFGDzWgoUJkcxJmzfizGkFG3brKNbQdw2nDU7Zc3OSbNz0uyVDZGLfcSFdbMMm-iHB__HvwAjYm8a</recordid><startdate>202010</startdate><enddate>202010</enddate><creator>Baburaj, Abhijit</creator><creator>Puthirath, Anand B</creator><creator>Jain, Amit</creator><creator>Palanisamy, Duraivelan</creator><creator>Salpekar, Devashish</creator><creator>Balachandran, Janakiraman</creator><creator>Kabbani, Mohamad A</creator><creator>Hernandez, F C Robles</creator><creator>Hughes, Gerry</creator><creator>Babu, Ganguli</creator><creator>Ajayan, Pulickel M</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-2595-8317</orcidid><orcidid>https://orcid.org/0000-0002-3736-8170</orcidid><orcidid>https://orcid.org/0000-0003-4064-6271</orcidid></search><sort><creationdate>202010</creationdate><title>Multilayer graphene coated vanadium(V) oxide as electrodes for intercalation based brackish water desalination</title><author>Baburaj, Abhijit ; Puthirath, Anand B ; Jain, Amit ; Palanisamy, Duraivelan ; Salpekar, Devashish ; Balachandran, Janakiraman ; Kabbani, Mohamad A ; Hernandez, F C Robles ; Hughes, Gerry ; Babu, Ganguli ; Ajayan, Pulickel M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c280t-391b45604ca9e9f330cc77b3cc26159c489da1738879b2bc529d4ae2783c3d2c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>2D materials</topic><topic>capacitive deionization</topic><topic>desalination</topic><topic>metal oxides</topic><topic>pseudocapacitance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baburaj, Abhijit</creatorcontrib><creatorcontrib>Puthirath, Anand B</creatorcontrib><creatorcontrib>Jain, Amit</creatorcontrib><creatorcontrib>Palanisamy, Duraivelan</creatorcontrib><creatorcontrib>Salpekar, Devashish</creatorcontrib><creatorcontrib>Balachandran, Janakiraman</creatorcontrib><creatorcontrib>Kabbani, Mohamad A</creatorcontrib><creatorcontrib>Hernandez, F C Robles</creatorcontrib><creatorcontrib>Hughes, Gerry</creatorcontrib><creatorcontrib>Babu, Ganguli</creatorcontrib><creatorcontrib>Ajayan, Pulickel M</creatorcontrib><collection>CrossRef</collection><jtitle>2d materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Baburaj, Abhijit</au><au>Puthirath, Anand B</au><au>Jain, Amit</au><au>Palanisamy, Duraivelan</au><au>Salpekar, Devashish</au><au>Balachandran, Janakiraman</au><au>Kabbani, Mohamad A</au><au>Hernandez, F C Robles</au><au>Hughes, Gerry</au><au>Babu, Ganguli</au><au>Ajayan, Pulickel M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multilayer graphene coated vanadium(V) oxide as electrodes for intercalation based brackish water desalination</atitle><jtitle>2d materials</jtitle><stitle>TDM</stitle><addtitle>2D Mater</addtitle><date>2020-10</date><risdate>2020</risdate><volume>7</volume><issue>4</issue><spage>45025</spage><pages>45025-</pages><issn>2053-1583</issn><eissn>2053-1583</eissn><abstract>Present work explores graphene-coated vanadium pentoxide (G-V2O5) as novel electrosorption material for the desalination of low molarity saline/brackish water. During the desalination cycles, along with the electrical double layer formation at the graphene layer, ion intercalation is observed in the honeycomb structure of the hydrothermally grown V2O5 layer leading to an improvement in Na+ and Cl− ion removal from the brackish water. The conventional capacitance tests by pairing G-V2O5 electrodes in a three-electrode cell shows a remarkable capacitance value of 500 F g−1, and the capacitive deionization process over 50 cycles at 5, 10 and 15 mM concentration (NaCl) gives a maximum salt adsorption capacity of 12.5 mg of NaCl per gram of electrode. 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| subjects | 2D materials capacitive deionization desalination metal oxides pseudocapacitance |
| title | Multilayer graphene coated vanadium(V) oxide as electrodes for intercalation based brackish water desalination |
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