摘要
半导体-微生物复合体系在污染物深度降解、合成有价化学品及元素生物地球化学循环等领域发挥着重要作用,其界面反应过程的核心是电子转移.本文重点阐述了微生物/半导体界面上微生物的种类和功能、半导体的种类及光催化机制,总结了半导体-微生物界面的直接和间接电子传递途径,讨论了强化界面电子传递的方法以及半导体与微生物系统的稳定性,介绍了近年来半导体-微生物复合体系在污染物转化、化学品合成以及资源循环利用方面的应用现状,以期为半导体-微生物复合体系的设计及其环境领域应用提供指导.
Semiconductors are widely detected in the natural environment,and microbes are one of the most abundant living organisms on the earth.Semiconductor-microbe hybrid system plays a key role in many fields,such as deeply degradation and mineralization of refractory pollutants,synthesis of value-added chemicals,and bio-geochemical cycles of elements.The key factor between semiconductors and microorganism centers on the electron transfer mechanism and pathway on the abiotic/biotic interface.Therefore,this review focused on the electron transfer on semiconductor-microbe interface,and summed up the functional types of microorganisms,types of semiconduc⁃tors and photocatalytic mechanism on the biotic/abiotic hybrid system.Direct and indirect electron transfer pathway on the semiconductor-microbe interface were summarized.Methods of enhancing electron transfer methods were also introduced,including direct electron transfer enhanced by semiconductor modification,reducing photo-electrons and holes recombination,and indirect electron transfer enhanced by electron shuttles and carriers.At last,this paper introduces the application of the semiconductor-microbe hybrid system in the environmental field over recent years,including refractory pollutants synergistic degradation,value-added chemical synthesis,and elemental bio-geochemical cycling on the earth.We hope this review will help researchers to strengthen the understanding of the semiconductor-microbe interface,and propose solutions for the design and applications of the hybrid semiconductor-microbe system in the environmental field.
作者
李祎頔
田晓春
李俊鹏
陈立香
赵峰
LI Yidi;TIAN Xiaochun;LI Junpeng;CHEN Lixiang;ZHAO Feng(CAS Key Laboratory of Urban Pollutant Conversion,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2022年第6期27-37,共11页
Chemical Journal of Chinese Universities
基金
国家重点研发计划项目(批准号:2018YFC1800502)
国家杰出青年科学基金(批准号:22025603)资助
关键词
半导体
微生物
胞外电子传递
微生物电化学
微生物电合成
Semiconductor
Microbe
Extracellular electron transfer
Microbial electrochemistry
Microbial electrosynthesis
