光催化剂应用于微生物复合碳转化体系的研究进展

Research progress of photocatalyst application in microorganism hybrid system for carbon conversion

结合具有光激发特性的光催化剂和有特定生物固碳途径的微生物,构建光催化剂-微生物复合体系,将实现太阳能捕获、催化反应活性和选择性等方面的优势互补.不同类型光催化剂在光吸收特性及光催化性能等方面存在巨大差异,本文总结了含金属、非金属基或复合光催化剂与微生物构成的复合碳转化体系,对比光催化剂引入方法、光催化剂作用途径及碳转化产物、效率等关键因素.针对率先与微生物结合的CdS光催化剂,系统阐述了其生产乙酸、甲烷、C_(2+)产物及复合改性的发展历程.分析杂化体系界面电荷转移的关键基础,概括其研究方法、现有成果及存在问题等.分析了应用于微生物复合碳转化体系光催化剂的面临挑战及发展趋势.

Combining photocatalysts with photo-excited properties and microorganisms with specific biological pathways for carbon fixation to construct the photocatalyst-microorganism hybrid system will achieve complementary advantages in solar energy capture,catalytic activity and selectivity.Different types of photocatalyst have huge differences in light absorption characteristic and photocatalytic performance.This paper summarized the hybrid systems for carbon conversion composed of metal containing,nonmetal-based,or composite photocatalysts with microorganisms,and compared key factors such as binding methods,photocatalyst action pathways,the products and efficiencies of carbon conversion.For CdS photocatalyst firstly combined with microorganisms,its development process for the generations of acetic acid,methane,C_(2+)products,and the process of composite modification were systematically expounded.The key basis of interfacial charge transfer for hybrid system was analyzed.The research methods,existing achievements and problems were summarized.The challenges and development trends of photocatalyst applied in microorganism hybrid system for carbon conversion were analyzed.