摘要
采用溶腔-凝胶法制备活性炭负载型TiO2光催化剂，用XRD分析了其物相结构。以甲基橙溶液为目标降解物，以紫外灯为光源对活性炭负载型TiO2光催化剂进行了光降解性能的研究，考察了TiO2负载量、催化剂用量、热处理温度等对催化剂的光催化活性的影响。结果表明，当TiO2负载量为33．3％的活性炭负我型TiO2光催化剂用量为2～3g·L^-1、紫外光连续照射5h时，甲基橙溶液的脱色率可达到96．1％。
The TiO2/AC photoeatalyst was prepared by a sol-gel process. The samples were characterlzea by XRD techniques after heating treatment at different temperatures. The photocatalytic activity of the sample was examined by using methyl orange as model contaminant under ultraviolet lamp as light source. The results indicated that the best loading capacity and calcining temperature was 33.3%, 200-3000C, respectively. When the concentration of TiO2/AC was 2-3 g·L^-1 ,the photodegradation rate of methyl orange was 96.1% after illuminated five hours.
出处
《化学与生物工程》
CAS
2006年第2期16-18,共3页
Chemistry & Bioengineering
基金
陕西省教育厅科研基金资助课题(03J5014
0202009)
延安大学科研基金项目(YD2004-200)
关键词
活性炭
光催化
甲基橙
activated carbon
photocatalytic degradation
methyl orange
