Ti/SnO₂¨CSb₂O₅¨CRuO₂/¦Á-PbO₂/¦Â-PbO₂ electrodes for pollutants degradation

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• 作者：Yinghan  ; Zheng^a ; Wenqiu  ; Su^a ; Shengying  ; Chen^a ; Xingzheng  ; Wu^b ; Xueming  ; Chen^a ;   ; ^{chenxm@zju.edu.cn}
• 关键词：PbO₂ electrodes ; Wastewater ; Electrochemical degradation ; Phenol ; 4-Chlorophenol
• 刊名：Chemical Engineering Journal
• 出版年：2011
• 出版时间：15 October 2011
• 年：2011
• 卷：174
• 期：1
• 页码：304-309
• 全文大小：816 K

文摘

The SnO₂¨CSb₂O₅¨CRuO₂, ¦Á-PbO₂ and ¦Â-PbO₂ films were successfully deposited on Ti nets using thermal deposition and electrodeposition methods. It was found that the SnO₂¨CSb₂O₅¨CRuO₂ interlayer played a very important role in enhancing the PbO₂ films electrodeposition. The Ti/SnO₂¨CSb₂O₅¨CRuO₂/¦Á-PbO₂/¦Â-PbO₂ electrodes obtained were superior not only in electrochemical stability but also in activity for pollutants degradation. The lifetime reached 59 h under the accelerated life test conditions at a current density of 4 A/cm² in 0.5 M H₂SO₄ solution. The COD removal and average current efficiencies were about 94 % and 53 % for degrading 500 mg/L phenol at a current density of 100 A/m², and about 82 % and 25 % for degrading 1 mM 4-chlorophenol at 200 A/m².