Title: | Efficient gas phase VOC removal and electricity generation in an integrated bio-photo-electro-catalytic reactor with bio-anode and TiO(2) photo-electro-catalytic air cathode |
Address: | "Key Laboratory of Industrial Ecology and Environmental Engineering(MOE), School of Environmental Science &Technology, Dalian University of Technology, Dalian 116024, China. Key Laboratory of Industrial Ecology and Environmental Engineering(MOE), School of Environmental Science &Technology, Dalian University of Technology, Dalian 116024, China; School of Food and Environment, Dalian University of Technology, Panjin 124221, China. Electronic address: lifenliu@dlut.edu.cn" |
DOI: | 10.1016/j.biortech.2018.09.041 |
ISSN/ISBN: | 1873-2976 (Electronic) 0960-8524 (Linking) |
Abstract: | "An efficient and cost-effective bio-photo-electro-catalytic reactor (BPEC) was developed, it combined bio-anode with TiO(2) photo-electro-catalytic air cathode and could remove rapidly model gas phase VOC ethyl acetate (EA) and generate electricity simultaneously. This BPEC system exhibited a synergistic effect between the photo-electro-catalysis and microbial fuel cell (MFC) bio-electrochemical process. Calculated kinetic constant of the BPEC system (0.085?ª+min(-1)) was twice the sum of those of photocatalysis (only electrolyte in the anode, without microbes, 0.033?ª+min(-1)) and MFC (no photocatalysis, 0.010?ª+min(-1)) systems. Compared to BPEC with proton exchange membrane (PEM) separator (59.6?ª+mW/cm(2)), the system with polyvinylidene fluoride (PVDF) membrane had a higher EA degradation rate and power generation (92.8?ª+mW/cm(2)). A lower external resistance resulted in a faster EA degradation rate. This report provides a new platform for treating other kinds of gas pollutants via integrated bio-electrochemical and gas-solid photo-electro-catalytic reactions, with energy generation and conversions" |
Keywords: | Bioelectric Energy Sources Catalysis Electricity Electrodes Titanium/*chemistry Volatile Organic Compounds/*chemistry Bioelectrochemical system Composite membrane electrode Electricity generation Mfc Photo-electrocatalysis VOCs degradation; |
Notes: | "MedlineWang, Lihong Liu, Lifen Yang, Fenglin eng England 2018/09/27 Bioresour Technol. 2018 Dec; 270:554-561. doi: 10.1016/j.biortech.2018.09.041. Epub 2018 Sep 8" |