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光氧催化的发展历程是怎么样的?

来源:http://www.spormac.net/   发布时间:2019-04-11 11:08:19
  1972 年,Fujishima和 Honda在n—型半导体TiO2电极上发现了光催化裂解水反应,在Nature 上发表了“Electrochemical photolysis of water at a semiconductor electrode”,揭开了多相光催化新时代的序幕。
  In 1972, Fujishima and Honda discovered the photocatalytic water splitting reaction on n-type semiconductor titanium dioxide electrode, and published "Electrochemical photolysis of water at a semiconductor electrode" on Nature, which opened the prelude of a new era of heterogeneous photocatalysis.
  1976 年John. H .Carey等研究了多氯联苯的光催化氧化,,被认为是光催化技术在消除环境污染物方面的首创性研究工作。1977 年,YokotaT 等发现在光照条件下,TiO2对丙烯环氧化具有光催化活性,从而拓宽了光催化的应用范围,为有机物氧化反应提供了一条新的思路。自1983 年起,A.L. Pruden和D.Follio就烷烃、烯烃和芳香烃的氯化物等一系列污染物的光催化氧化作了连续研究,发现反应物都能迅速降解。1989 年,Tanaka.K 等人研究发现有机物的半导体光催化过程由羟基自由基(·OH)引起,在体系中加入H2O2可增加·OH的浓度。进入了90 年代,随着纳米技术的兴起和光催化技术在环境保护、卫生保健、有机合成等方面应用研究的发展迅速,纳米量级的光催化剂的研究,已经成为国际上最活跃的研究领域之一。
光氧催化设备
  In 1976, John H. Carey et al. studied the photocatalytic oxidation of PCBs, which was considered as the first research work of photocatalytic technology in eliminating environmental pollutants. In 1977, YokotaT et al. found that under light conditions, titanium dioxide had photocatalytic activity for propylene epoxidation, which broadened the application scope of photocatalysis and provided a new idea for organic oxidation reaction. Since 1983, A. L. Pruden and D. Follio have studied the photocatalytic oxidation of a series of pollutants, such as chlorides of alkanes, olefins and aromatic hydrocarbons, and found that the reactants can degrade rapidly. In 1989, Tanaka. K. et al. found that the photocatalytic process of organic compounds was caused by hydroxyl radical (. OH). The concentration of. OH could be increased by adding hydrogen peroxide to the system. In the 1990s, with the rise of nanotechnology and the rapid development of photocatalytic technology in environmental protection, health care, organic synthesis and other fields, nano-scale photocatalyst research has become one of the most active research fields in the world.
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