1、中文 2500 字 ,1800 单词， 9800 英文字符 出处： Bui D N, Kang S Z, Li X, et al. Effect of Si doping on the photocatalytic activity and photoelectrochemical property of TiO 2, nanoparticlesJ. Catalysis Communications, 2011, 13(1):14-17. 本科生毕业设计外文原文及中文翻译 学 院 专 业 _ _ 导 师 学 生 学 号 _ _ 2015 年 6 月 11 日 Effect of Si dopi
2、ng on the photocatalytic activity and photoelectrochemical property of TiO2 nanoparticles Duc-Nguyen Bui Abstract Si-doped TiO2 nanoparticles with anatase crystalline phase were prepared by a hydrothermal method using acetic acid as the solvent. Photoelectro chemical studies showed that the photocur
3、rent value for the 15% Si-doped TiO2 electrode (54.4A) was much higher than that of the pure TiO2 electrode (16.7A).In addition， the 15% Si-doped TiO2 nanoparticles displayed the highest photocatalytic activity under ultraviolet light irradiation. So doping suitable amount of Si in TiO2 nanoparticle
4、s was protable for transferring photogenerated electrons and inhibiting the recombination of photogenerated electrons and holes. As a result， the photocatalytic activity of TiO2 nanoparticles was improved. 1.Introduction Commercial dyes have been widely used in industry， such as textile， foodstuff a
5、nd leather etc， and become an integral part of industrial efuents. Most of these dyes are toxic and potentially carcinogenic in nature and their removal from industrial efuents is a major environmental problem. In fact， various approaches have been developed to eliminate and degrade them， such as bi
6、odegradation coagulation，adsorption， membrane process and advanced oxidation process. Photocatalytic degradation using a semiconductor as the photocatalyst is a part of advanced oxidation process which has proven to be a green technology for the degradation of organic pollutants. It is known that among various oxide semiconductor photocatalysts， TiO2 is the most widely use
