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Capacitive deionization of seawater effected by nano Ag and Ag@C on graphene.
Cai, P-F; Su, C-J; Chang, W-T; Chang, F-C; Peng, C-Y; Sun, I-W; Wei, Y-L; Jou, C-J; Wang, H Paul.
Affiliation
  • Cai PF; Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
  • Su CJ; Department of Chemistry, National Cheng-Kung University, Tainan 70101, Taiwan.
  • Chang WT; Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
  • Chang FC; The Experimental Forest, National Taiwan University, Chu-Shan 55750 Nan-Tou Hsien, Taiwan.
  • Peng CY; Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
  • Sun IW; Department of Chemistry, National Cheng-Kung University, Tainan 70101, Taiwan.
  • Wei YL; Department of Environmental Science and Engineering, Tunghai University, Taichung 407, Taiwan.
  • Jou CJ; Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 811, Taiwan.
  • Wang HP; Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan. Electronic address: wanghp@mail.ncku.edu.tw.
Mar Pollut Bull ; 85(2): 733-7, 2014 Aug 30.
Article in En | MEDLINE | ID: mdl-24928455
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(+)-ß-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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Seawater / Silver / Metal Nanoparticles / Anti-Infective Agents Language: En Journal: Mar Pollut Bull Year: 2014 Type: Article Affiliation country: Taiwan
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Seawater / Silver / Metal Nanoparticles / Anti-Infective Agents Language: En Journal: Mar Pollut Bull Year: 2014 Type: Article Affiliation country: Taiwan