Indexed by:
Journal Papers
First Author:
Zeng, Libin
Correspondence Author:
Li, XY (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Key Lab Ind Ecol & Environm Engn MOE, Sch Environm Sci & Technol, Dalian 116024, Peoples R China.; Li, XY; Chen, AC (reprint author), Univ Guelph, Dept Chem, Electrochem Technol Ctr, 50 Stone Rd E, Guelph, ON N1G 2W1, Canada.
Co-author:
Li, Xinyong,Zhao, Qidong,Fan, Shiying,Zhang, Mingmei,Yin, Zhifan,Chen, Aicheng
Date of Publication:
2019-12-07
Journal:
NANOSCALE
Included Journals:
PubMed、EI、SCIE
Document Type:
J
Volume:
11
Issue:
45
Page Number:
22042-22053
ISSN No.:
2040-3364
Abstract:
Recently, molybdenum disulfide (MoS2) has stimulated significant research interest as a promising electrode candidate in solar cells and energy conservation fields. Unfortunately, the short lower electron/hole migration lifetimes and easy agglomeration hamper its wide practical applications to some extent. Herein, interface engineering coupled with a bio-assisted photoelectrochemical (PEC) strategy is presented to construct a 0D MoS2 quantum dot (QD)/1D TiO2 nanotube electrode for pollutant elimination. Aimed at accelerating charge transfer over the 0D/1D composite interface, three types of coupling PEC models were developed to optimize the catalytic performance. The single chamber microbial fuel cell (SCMFC)-PEC integrated system was found to be the best alternative for levofloxacin (LEV) elimination (0.029 min(-1)), and the sequential SCMFC-PEC further realized the whole system self-running independently. In addition, the interfacial electron migration and LEV degradation pathways were thoroughly investigated by LC/TOF/MS coupled with density functional theory (DFT) calculations to clearly elucidate the electron transfer paths, LEV-attacked sites and mineralization pathways in a joint sequential SCMFC-PEC system. As such, the constructed self-recycling system provides a new platform for bio-photo-electrochemical utilization, which could exhibit promising potential in environmental purification.
Translation or Not:
no
