摘要
采用溶胶-凝胶法制备纳米粉末TiO_2,并用XRD等技术对样品进行了表征．讨论了影响酸性红B光催化降解率的主要因素,实验结果表明,以600℃煅烧的TiO_2为光催化剂,当催化剂用量为2．00 g,通入空气的流量为10．0 L/min,试液的起始浓度80 mg/L(试液体积600 mL),pH=6．5时,光照140 min,酸性红B的降解率达到99．2％．
TiO2 nanometcr particles are prepared by a sol-gel process. XRD technique is used for the characterization of samples. The primary factors which influence the photoeatalytic degradation of acid red B are discussed. The results show that the photodegradation rate of acid red B can reach 99.2% by using TiO2 powder calcined at 600 ℃ as photocatalyst under the conditions of TiO2 2.00 g, air flow rate 10.0 L/min, starting concentration of acid red B 80 mg/L, pH 6.5, and illumination time 140 min.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2007年第2期342-346,共5页
The Chinese Journal of Process Engineering
基金
安徽省自然科学基金(编号:050450301)
