摘要
The widespread use of personal care products poses significant risks to both ecosystems and human health.The construction of photocatalysts with the advantages of enhanced visible light absorption,efficient charge separation and high stability is important for the degradation of persistent environmental pollutants.Herein,we have prepared two D-A heterojunction organic semiconductor photocatalysts:PV-BDTC1:IDTCN/Biochar and PVBDTC2:IDTCN/Biochar by a simple design method that can be widely applied.Under visible light irradiation,PV-BDTC2:IDTCN/Biochar showed better removal ability for indomethacin,with reaction rate constants 14.7 and 5.1 times higher than those of PV-BDTC2:IDTCN and Biochar,respectively.This is attributed to the construction of a heterojunction between the donor and the acceptor,which expands the light absorption range and promotes the separation of photogenerated carriers,thereby giving the material the ability to produce a large number of reactive oxygen species during the photocatalytic reaction.In addition,Biochar well ensures the stability of D-A heterojunction films under long-term operating conditions.This work highlight the potential of natural biomaterials in constructing effective D-A heterojunction organic photocatalysts/adsorbents for combatting water pollution.
基金
supported by Guangxi Science and Technology Major Program(No.AA24206037)
the Training Project of High-level Professional and Technical Talents of Guangxi University and Natural Science and Technology Innovation Development Multiplication Program of Guangxi University(No.2022BZRC006)
the project of the Research on the electrochemical reaction mechanism of the anode of medium-lowtemperature direct ammonia SOFCs(No.20231063020006)
the project of all solid-state high energy density energy storage system(No.20221063010031)
the project of Shenzhen Overseas Talent upon Industrialization of 1 kw stack for direct ammonia SOFCs(No.20221061010002).
