Polarity inversion of bioanode for biocathodic reduction of aromatic pollutants
文献类型：期刊论文
| 作者 | Cheng, Hao-Yi; Wang, Ai-Jie; Yin, Hua-Qun; Gu, Ya-Bing; Li, Zhi-Ling; Kong, De-Yong; Liang, Bin; Yun, Hui |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2017-06-05 |
| 卷号 | 331期号:0页码:280-288 |
| 关键词 | Polarity Inversion Bidirectional Electron Transfer Biocathode Nitroaromatics And Azo Dye Reduction |
| 英文摘要 | The enrichment of specific pollutant-reducing consortium is usually required prior to the startup of bio-cathode bioelectrochemical system (BES) and the whole process is time consuming. To rapidly establish a non-specific functional biocathode, direct polar inversion from bioanode to biocathode is proposed in this study. Based on the diverse reductases and electron transfer related proteins of anode-respiring bacteria (ARB), the acclimated electrochemically active biofilm (EAB) may catalyze reduction of different aromatic pollutants. Within approximately 12 d, the acclimated bioanodes were directly employed as biocathodes for nitroaromatic nitrobenzene (NB) and azo dye acid orange 7 (AO7) reduction. Our results indicated that the established biocathode significantly accelerated the reduction of NB to aniline (AN) and AO7 to discolored products compared with the abiotic cathode and open circuit controls. Several microbes possessing capabilities of nitroaromatic/azo dye reduction and bidirectional electron transfer were maintained or enriched in the biocathode communities. Cyclic voltammetry highlighted the decreased over-potentials and enhanced electron transfer of biocathode as well as demonstrated the ARB Geobacter containing cytochrome c involved in the backward electron transfer from electrode to NB. This study offers new insights into the rapid establishment and modularization of functional biocathodes for the potential treatment of complicated electron acceptors-coexisting wastewaters. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39645]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Cheng, Hao-Yi,Wang, Ai-Jie,Yin, Hua-Qun,et al. Polarity inversion of bioanode for biocathodic reduction of aromatic pollutants[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,331(0):280-288. |
| APA | Cheng, Hao-Yi.,Wang, Ai-Jie.,Yin, Hua-Qun.,Gu, Ya-Bing.,Li, Zhi-Ling.,...&Yun, Hui.(2017).Polarity inversion of bioanode for biocathodic reduction of aromatic pollutants.JOURNAL OF HAZARDOUS MATERIALS,331(0),280-288. |
| MLA | Cheng, Hao-Yi,et al."Polarity inversion of bioanode for biocathodic reduction of aromatic pollutants".JOURNAL OF HAZARDOUS MATERIALS 331.0(2017):280-288. |
入库方式： OAI收割
来源：生态环境研究中心
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