PMID- 35487005 OWN - NLM STAT- MEDLINE DCOM- 20220530 LR - 20220531 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 435 DP - 2022 Aug 5 TI - A portable solar light-driven biophotoelectrocatalytic system for pollutant removal powered by photovoltaic cells. PG - 128989 LID - S0304-3894(22)00778-6 [pii] LID - 10.1016/j.jhazmat.2022.128989 [doi] AB - Photoelectrocatalytic (PEC) technology has been considered as one of the most efficient advanced oxidation processes for wastewater treatment, but the necessity of external electric power supply limits the portability of PEC system for on-field applications. Herein, a portable solar-powered biophotoelectrocatalytic system driven by photovoltaic (PV) cells was explored for degradation of pollutant by coupling BiVO(4)/Fe(2)O(3)-deposited photoanode and horseradish peroxidase (HRP)-immobilized cathode. The integration of PV cells in this PEC device could not only avoid the necessary introduction of external electric power supply, but also improve the utilization of solar irradiation. The characterization of BiVO(4)/Fe(2)O(3) photoanode demonstrates that ultrathin Fe(2)O(3) layer on BiVO(4) electrode could facilitate the holes transfer to the surface efficiently and thus avoid charge recombination. After HRP was immobilized on the cathode, the removal efficiency for 2,4-dichlorophenol (2,4-DCP) was obviously promoted, attributed to the efficient HRP-catalyzed oxidation reaction by in-situ generated H(2)O(2) from PEC process. Under natural solar irradiation, the proposed portable biophotoelectrocatalytic device exhibited a satisfying removal efficiency of 92.0% for 100 ppm of 2,4-DCP after 3-h treatment. The intermediate products formed during the degradation process were identified by liquid chromatography-mass spectrometry, and possible 2,4-DCP degradation pathway was also proposed. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Yan, Kai AU - Yan K AD - Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, China. FAU - Liu, Jianqiao AU - Liu J AD - Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, China. FAU - Qin, Jin AU - Qin J AD - Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, China. FAU - Zhang, Jingdong AU - Zhang J AD - Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, China. Electronic address: zhangjd@mail.hust.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220421 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Environmental Pollutants) RN - 3WHH0066W5 (Vanadates) RN - BBX060AN9V (Hydrogen Peroxide) RN - EC 1.11.1.- (Horseradish Peroxidase) RN - U015TT5I8H (Bismuth) SB - IM MH - Bismuth/chemistry MH - *Environmental Pollutants MH - Horseradish Peroxidase MH - Hydrogen Peroxide MH - *Solar Energy MH - Vanadates/chemistry OTO - NOTNLM OT - 2,4-Dichlorophenol removal OT - BiVO(4)/Fe(2)O(3) photoanode OT - Peroxidase-catalyzed degradation OT - Photoelectrocatalysis OT - Solar photovoltaic cells EDAT- 2022/04/30 06:00 MHDA- 2022/05/31 06:00 CRDT- 2022/04/29 18:13 PHST- 2021/12/17 00:00 [received] PHST- 2022/03/12 00:00 [revised] PHST- 2022/04/19 00:00 [accepted] PHST- 2022/04/30 06:00 [pubmed] PHST- 2022/05/31 06:00 [medline] PHST- 2022/04/29 18:13 [entrez] AID - S0304-3894(22)00778-6 [pii] AID - 10.1016/j.jhazmat.2022.128989 [doi] PST - ppublish SO - J Hazard Mater. 2022 Aug 5;435:128989. doi: 10.1016/j.jhazmat.2022.128989. Epub 2022 Apr 21.