摘要
用紫外灯作为光源,以锐钛型TiO2为催化剂降解硝基苯。探讨了光照时间、初始pH值、初始浓度、催化剂用量和载铜TiO2复合催化剂对光催化降解的影响。结果表明,TiO2用量为3.0 g/L,pH为3,硝基苯初始浓度为40.6 mg/L,室温条件下,光照6 h硝基苯降解率为80.6%;掺杂1%Cu2+(摩尔分数)的TiO2复合催化剂,光催化活性高于纯TiO2,其光催化降解率较TiO2提高14.5%。
TiO2 （anatase） is applied to photocatalytically degrade nitrobenzene with ultraviolet lamp as light source. The effects of some factors, such as dosage of TiO2, pH value, the light perdurability, initial concentration of nitrobenzene and Cu^2＋/TiO2 photocatalyst are studied. The results show that under the following condition ： dosage of TiO2 3.0 g/L, pH = 3,initial concentration 40 mg/L, room temperature, nitrohenzene degradation rate is 80.6% after 6 h. The photocatalytic activity of the 1% （ in mole percent） Cu^2＋ composite particles is higher than that of TiO2, the degradation rate increases 14.5% compared with that of TiO2.
出处
《应用化工》
CAS
CSCD
2007年第8期748-750,共3页
Applied Chemical Industry
基金
国家自然科学基金项目(40472131)
关键词
二氧化钛
硝基苯
光催化降解
titaniumdioxide
nitrobenzene
photocatalytic degradation
