TiO2/ACF复合光催化材料研究进展

摘要

将纳米TiO2粉末负载于活性炭纤维(activated carbon fibers,ACF)上,可以解决纳米TiO2颗粒的分离和再生等工业应用难题.通常,活性炭纤维负载TiO2主要有两种途径;物理法(粉体烧结法、偶联法等)和化学法(溶胶-凝胶法、溶剂热、化学气相沉积法等).综述了近年来TiO2/ACF复合光催化材料的制备方法以及该类材料的研究进展,分析TiO2/ACF复合光催化材料对污染物的降解过程,阐述TiO2与活性炭纤维之间的协同作用机制,探索制备TiO2/ACF复合光催化材料的最佳方法.%Activated Carbon Fibers with TiO2 loaded can solve the industrial application problems of separation and regeneration of nano-titanium dioxide particles.Generally,titanium dioxide can be loaded on activated carbon fibers via physical methods (powder sintering,coupling,etc.) or chemical methods (sol-gel,hydrothermal process,chemical vapor deposition,etc.).In the paper,the recent progress in TiO2/ACF composite photocatalytic materials has been reviewed,including the preparation methods of the composite materials,the degradation process of pollutants by composite photocatalysts and the synergistic mechanism between titanium dioxide and activated carbon fibers.The best method for preparing TiO2/ACF composite photocatalytic materials was explored.