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二氧化钛(TiO_2)光催化剂具有催化能力强、性质稳定、成本低、无二次污染等特点,已成为环境治理的重点研究技术之一。结合国内外研究进展综述了纳米TiO_2光催化剂的制备方法,尤其就材料改性、负载方式进行了重点介绍。简要总结了TiO_2光催化剂在环境治理方面的应用,并初步提出了大规模走向工业化所面临的问题及解决方法。
Titanium dioxide (TiO 2) photocatalyst has the characteristics of strong catalytic ability, stable property, low cost and no secondary pollution, and has become one of the key research technologies in environmental management. Combined with the research progress at home and abroad, the preparation methods of nano-sized TiO_2 photocatalysts are summarized, especially the modification of materials and the loading methods are introduced emphatically. The application of TiO_2 photocatalysts in environmental management is briefly summarized, and the problems and solutions to the large-scale industrialization are proposed.