| Title: | Efficient biodechlorination at the Fe(3)O(4)-based silicone powder modified chlorobenzene-affinity anode |
| Author(s): | You J; Ye L; Kong X; Duan Y; Zhao J; Chen J; Chen D; |
| Address: | "Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, China. Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, China; College of Environment, Zhejiang University of Technology, Hangzhou 310014, China. Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, China. Electronic address: cdz@zjut.edu.cn" |
| DOI: | 10.1016/j.jhazmat.2023.131794 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "The treatment of chlorinated volatile organic compounds faces challenges of secondary pollution and less-efficiency due to the substitution of chlorine. Microbial fuel cells (MFCs) provide a promising opportunity for its abatement. In this study, a novel Fe(3)O(4) nanoparticles and silicone-based powder (SP) were integrated and immobilized on carbon felt (CF+Fe(3)O(4)@SP), which was further used as anode in the chlorobenzene (CB) powered MFC. Owing to the cooperation between SP and Fe(3)O(4), the anode exhibited excellent performance for both biodechlorination and power generation. The results indicated that the CF+Fe(3)O(4)@SP anode loaded MFC achieved 98.5% removal of 200 mg/L CB within 28 h, and the maximum power density was 675.9 mW/m(3), which was a 45.6% increase compared to that of the bare CF anode. Microbial community analysis indicated that the genera Comamonadaceae, Pandoraea, Obscuribacteraceae, and Truepera were dominated, especially, the Comamonadaceae and Obscuribacteraceae showed outstanding affinity for Fe(3)O(4) and SP, respectively. Moreover, the proportion of live bacteria, secretion of extracellular polymer substances, and protein content in the extracellular polymer substances were significantly increased by modifying Fe(3)O(4)@SP onto the carbon-based anode. Thus, this study provides new insights into the development of MFCs for refractory and hydrophobic volatile organic compounds removal" |
| Keywords: | Powders *Volatile Organic Compounds *Bioelectric Energy Sources Carbon/chemistry Bacteria Electrodes Polymers Electricity Anode modification Dechlorination Mfc Mechanisms; |
| Notes: | "MedlineYou, Juping Ye, Lei Kong, Xianwang Duan, Yuqi Zhao, Jingkai Chen, Jianmeng Chen, Dongzhi eng Research Support, Non-U.S. Gov't Netherlands 2023/06/15 J Hazard Mater. 2023 Sep 5; 457:131794. doi: 10.1016/j.jhazmat.2023.131794. Epub 2023 Jun 7" |
