Electrochemical hydrodechlorination of perchloroethylene in groundwater on a Ni-doped graphene composite cathode driven by a microbial fuel cell.
Electrochemical hydrodechlorination of perchloroethylene in groundwater on a Ni-doped graphene composite cathode driven by a microbial fuel cell.
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微生物燃料电池驱动的镍掺杂石墨烯复合阴极对地下水中的全氯乙烯进行电化学加氢脱氯
DOI：
10.1039/c8ra06951d
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发表时间：
2018-10-22
期刊：
影响因子：
3.9
通讯作者：
Li, Hongdong
中科院分区：
文献类型：
--
作者：
Liu, Lu;Sun, Xiaochen;Li, Wenxin;An, Yonglei;Li, Hongdong
提高氯代烃电化学加氢脱氯的阴极活性和降低电压一直是电化学修复领域面临的挑战。本研究通过将镍纳米粒子均匀分散在石墨烯上，制备了一种新型的镍掺杂石墨烯阴极材料，并将其用于地下水中四氯乙烯的电化学脱氯。通过循环伏安法测定的用于PCE电化学加氢脱氯的Ni掺杂石墨烯的还原电位为−0.24 V（vs. Ag/AgCl）。在电压为0.389-0.460 V、电流为0.221-0.257 mA的条件下，单一MFC可以有效驱动Ni掺杂石墨烯为阴极催化剂的PCE电化学加氢脱氯，PCE的去除率明显高于单一Ni或石墨烯为阴极催化剂的情况。中性条件下Ni掺杂石墨烯更适合于地下水中PCE的电化学加氢脱氯，且无副产物积累。制备了Ni掺杂石墨烯，并将其用于微生物燃料电池驱动的PCE电化学脱氯。脱氯效率和还原电位显著高于裸镍或石墨烯。
Enhancing the activity of the cathode and reducing the voltage for electrochemical hydrodechlorination of chlorohydrocarbon were always the challenges in the area of electrochemical remediation. In this study, a novel cathode material of Ni-doped graphene generated by Ni nanoparticles dispersed evenly on graphene was prepared to electrochemically dechlorinate PCE in groundwater. The reduction potential of Ni-doped graphene for PCE electrochemical hydrodechlorination was −0.24 V (vs. Ag/AgCl) determined by cyclic voltammetry. A single MFC with a voltage of 0.389–0.460 V and a current of 0.221–0.257 mA could drive electrochemical hydrodechlorination of PCE effectively with Ni-doped graphene as the cathode catalyst, and the removal rate of PCE was significantly higher than that with single Ni or graphene as the cathode catalyst. Moreover, neutral conditions were more suitable for Ni-doped graphene to electrochemically hydrodechlorinate PCE in groundwater and no byproduct was accumulated. Ni-doped graphene was prepared to electrochemically dechlorinate PCE driven by a microbial fuel cell. Dechlorination efficiency and reduction potential were significantly higher than for bare Ni or graphene.
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影响因子：
12.8
作者：
Mao, Xuhui;Ciblak, Ali;Baek, Kitae;Amiri, Mohammad;Loch-Caruso, Rita;Alshawabkeh, Akram N.
通讯作者：
Alshawabkeh, Akram N.
DOI：
10.1016/j.mseb.2005.11.021
发表时间：
2006-03-15
期刊：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
影响因子：
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作者：
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通讯作者：
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影响因子：
32.5
作者：
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通讯作者：
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影响因子：
1.9
作者：
Chen, Shin-Shian;Huang, Yi-Chu;Kuo, Tzu-Yen
通讯作者：
Kuo, Tzu-Yen
影响因子：
3.4
作者：
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通讯作者：
Majone, Mauro