C-TiO_2复合光催化剂研究进展

Progress in C-TiO_2 Nanocomposite Photocatalyst

通过论述C与TiO2光催化剂的复合方式,系统总结了C-TiO2复合光催化剂的各种制备方法,指出炭与TiO2的复合呈现多样化的特征,炭不仅作为载体,还可以用作涂层、造孔剂以及助剂。同时,炭在复合体中也展现出多方面的作用,不仅可以富集目标污染物,捕获中间产物,还可以抑制热处理时TiO2相变和晶粒长大。最后还指出了C-TiO2未来的发展前景及存在的问题。

Various composite techniques and preparation methods of C-TiO2 nanocomposlte photocatalyst are summarized. The carbon in the composite photocatalyst not only can be used as a carrier of titania but also can be functioned as a coating layer or pore forming agents. Meanwhile, the role of carbon in the complex is also described. The existing carbon can enrich the target pollutants, capture the intermediates, and inhibit the TiO2 phase change and grain growth during heating process. Furthermore, the development trend and existing problems of C-TiO2 nanocomposite photocatalyst are briefly summarized.