TY - JOUR
T1 - Efficient CO2 conversion to formic acid in a novel microbial photoelectrochemical cell using a visible-light responsive Co3O4 nanorod-arrayed photocathode
AU - Wu, Jing
AU - Han, Xiaoyu
AU - Li, Da
AU - Logan, B. E.
AU - Liu, Jia
AU - Zhang, Zhaohan
AU - Feng, Yujie
N1 - Funding Information:
This research work was financially supported by the National Key R&D Program of China ( 2017YFA0207201 ) and the National Natural Science Foundation of China ( 21673061 & 21972036 ). This work was also supported by the Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (No. QAK201534 ).
Funding Information:
This research work was financially supported by the National Key R&D Program of China (2017YFA0207201) and the National Natural Science Foundation of China (21673061 & 21972036). This work was also supported by the Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (No. QAK201534).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/11/5
Y1 - 2020/11/5
N2 - A microbial photoelectrochemical cell (MPEC) is a self-biased, solar-driven device combining bioenergy with solar energy to produce sustainable electricity and chemicals. Here, an MPEC with a p-type Co3O4 nanorod-arrayed photocathode and bio-anode was constructed that matched well the redox potentials of anode microorganisms with the band gap of the Co3O4. The yield of formic acid produced by this MPEC under visible light irradiation with an external resistance of 300 Ω was 239 ± 10 μmol in 10 h, which was 1.8 times that produced by a bare Co3O4 photocathode under visible light, and 4.9 times that produced by the MPEC operated in dark. The maximum power density was 331 ± 4 mW m–2 under visible light, compared to 175 ± 25 mW m–2 in the dark. This study of MPEC with the synergistic effect of light energy and bioenergy opens up new opportunities for applications in environmental treatment of wastewaters and chemicals production.
AB - A microbial photoelectrochemical cell (MPEC) is a self-biased, solar-driven device combining bioenergy with solar energy to produce sustainable electricity and chemicals. Here, an MPEC with a p-type Co3O4 nanorod-arrayed photocathode and bio-anode was constructed that matched well the redox potentials of anode microorganisms with the band gap of the Co3O4. The yield of formic acid produced by this MPEC under visible light irradiation with an external resistance of 300 Ω was 239 ± 10 μmol in 10 h, which was 1.8 times that produced by a bare Co3O4 photocathode under visible light, and 4.9 times that produced by the MPEC operated in dark. The maximum power density was 331 ± 4 mW m–2 under visible light, compared to 175 ± 25 mW m–2 in the dark. This study of MPEC with the synergistic effect of light energy and bioenergy opens up new opportunities for applications in environmental treatment of wastewaters and chemicals production.
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U2 - 10.1016/j.apcatb.2020.119102
DO - 10.1016/j.apcatb.2020.119102
M3 - Article
AN - SCOPUS:85085291123
SN - 0926-3373
VL - 276
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 119102
ER -