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系统论述了国内外纳米TiO_2/环境矿物复合材料的研究和应用现状,重点介绍了纳米TiO_2负载的环境矿物种类、制备方法及其在环保方面的应用。纳米TiO_2负载环境矿物的制备方法主要有溶胶-凝胶法、粉体烧结法、掺杂法、浸渍法、气相沉积和液相沉淀法等。纳米TiO_2/环境矿物复合材料主要应用于废水处理降解有机污染物、分解环境中有害气体和有害微生物。最后提出了纳米TiO_2/环境矿物复合材料还需深入研究的问题,并展望了其发展前景。
This paper systematically discusses the research and application status of nano-TiO 2 / environmental mineral composites at home and abroad, and mainly introduces the types and preparation methods of environmental minerals supported by nano-TiO 2 and its application in environmental protection. The main preparation methods of nano-TiO2 loading environment minerals are sol-gel method, powder sintering method, doping method, impregnation method, vapor deposition method and liquid phase precipitation method. Nano-TiO 2 / environmental mineral composite materials are mainly used in wastewater treatment and degradation of organic pollutants, decomposition of harmful gases and harmful microorganisms in the environment. In the end, the problems that nano-TiO 2 / environment mineral composites need to be studied in depth are also discussed, and their development prospects are prospected.