摘要
目前,在环保领域中研究以TiO_2为光触媒,制备具有光催化氧化能力的节能、高效的绿色环保材料成为热点。将纳米TiO_2应用于混凝土中生产光催化混凝土,赋予了混凝土降解大气中的污染物和建筑物表面微生物的功能,如汽车尾气以及建筑物表面微生物的的降解。本文论述了纳米TiO_2作为光催化剂的反应机理,综述了具有光催化性能的混凝土材料的制备方法、应用研究现状及影响光催化性能的因素,总结了光催化混凝土生产应用上的问题,并展望了下一步的研究方向。
Currently, one of the research hot spots in the field of environmental protection is to use TiO2 as photocatalyst to prepare an energy-saving and highly-efficient green environmental protection material capable of photocatalytic oxidation. It is important for enriching the function of concrete, and the concrete can degrade pollutants in the atmosphere, such as automobile exhaust and the degradation of building surface microorganisms when applying TiO2 to concrete production. Here, the mechanism of TiO2 photocatalysis is introduced. The preparation methods, application research status and factors that influence the photocatalytic performance of concrete materials with photocatalytic properties are reviewed, and the problems to be solved in the production and application of photocatalytic concrete are summarized.
出处
《混凝土与水泥制品》
北大核心
2018年第6期20-23,共4页
China Concrete and Cement Products
基金
国家重点研发计划(2016YFC0701004)
国家自然科学基金(51402246)
关键词
光催化
水泥混凝土
环境保护
降解
Photocatalysis
Cement concrete
Environment protection
Degradation
