生物转化
电合成
生化工程
温室气体
二氧化碳
环境科学
化学
生态学
工程类
生物
发酵
电化学
生物化学
电极
物理化学
有机化学
作者
Gaoxiang Chen,Rongchang Wang,Mingming Sun,Jie Chen,Eheneden Iyobosa,Jianfu Zhao
出处
期刊:Chemosphere
[Elsevier]
日期:2023-12-01
卷期号:344: 140251-140251
标识
DOI:10.1016/j.chemosphere.2023.140251
摘要
Large emissions of atmospheric carbon dioxide (CO2) are causing climatic and environmental problems. It is crucial to capture and utilize the excess CO2 through diverse methods, among which the microbial electrosynthesis (MES) system has become an attractive and promising technology to mitigate greenhouse effects while reducing CO2 to high–value chemicals. However, the biological conversion and metabolic pathways through microbial catalysis have not been clearly elucidated. This review first introduces the main acetogenic bacteria for CO2 reduction and extracellular electron transfer mechanisms in MES. It then intensively analyzes the CO2 bioconversion pathways and carbon chain elongation processes in MES, together with energy supply and utilization. The factors affecting MES performance, including physical, chemical, and biological aspects, are summarized, and the strategies to promote and regulate bioconversion in MES are explored. Finally, challenges and perspectives concerning microbial electrochemical carbon sequestration are proposed, and suggestions for future research are also provided. This review provides theoretical foundation and technical support for further development and industrial application of MES for CO2 reduction.
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