Capacitive deionization of seawater effected by nano Ag and Ag@C on graphene

doi:10.1016/j.marpolbul.2014.05.020

機構典藏 > College of Engineering > Graduate Institute & Department of Water Resources and Environmental Engineering > Journal Article > Item 987654321/103033

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Title:	Capacitive deionization of seawater effected by nano Ag and Ag@C on graphene
Authors:	P. F. Cai;C. J. Su;W. T. Chang;F. C. Chang;C. Y. Peng;I. W. Sun;Y. L. Wei;C. J. Jou;H. Paul Wang
Contributors:	淡江大學水資源及環境工程學系
Keywords:	Capacitive deionization;Graphene;Ag@C;Seawater;Saline water
Date:	2014-01-01
Issue Date:	2015-05-14 16:44:52 (UTC+8)
Publisher:	London: Elsevier Ltd
Abstract:	Drinking water shortage has become worse in recent decades. A new capacitive deionization (CDI) method for increasing water supplies through the effective desalination of seawater has been developed. Silver as nano Ag and Ag@C which was prepared by carbonization of the Ag+-β-cyclodextrin complex at 573 K for 30 min can add the antimicrobial function into the CDI process. The Ag@C and Ag nanoparticles dispersed on reduced graphene oxide (Ag@C/rGO and nano Ag/rGO) were used as the CDI electrodes. The nano Ag/rGO and Ag@C/rGO electrodes can reduce the charging resistant, and enhance the electrosorption capability. Better CDI efficiencies with the nano Ag/rGO and Ag@C/rGO electrodes can therefore be obtained. When reversed the voltage, the electrodes can be recovered up to 90% within 5 min. This work presents the feasibility for the nano Ag and Ag@C on rGO electrodes applied in CDI process to produce drinking water from seawater or saline water.
Relation:	Marine Pollution Bulletin 85, pp.733-737
DOI:	10.1016/j.marpolbul.2014.05.020
Appears in Collections:	[Graduate Institute & Department of Water Resources and Environmental Engineering] Journal Article

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