摘要： 采用溶胶-凝胶法制备了纳米TiO2，合成了TiO2/Cu2O复合光催化剂，并对合成的TiO2和TiO2/Cu2O进行SEM和XRD表征。在高压汞灯照射下，采用TiO2/Cu2O复合光催化剂对活性艳红X-3B进行光催化降解反应，考察了n（Ti4+）：n（Cu2+）、pH、反应温度等因素的影响。结果表明，在高压汞灯照射下，与纳米TiO2相比，TiO2/Cu2O的光催化降解效果得到明显提高。以0.01 g TiO2/Cu2O复合物为光催化剂，在高压汞灯照射下，降解100 mL 20 mg/L的活性艳红X-3B溶液，起始pH为1，水浴温度为60℃，反应60 min，活性艳红X-3B最佳降解率为83.6%。
关键词:
Cu2O,
TiO2,
光催化,
活性艳红X-3B
Abstract: The nano-TiO2 has been prepared by sol-gel method,and the TiO2/Cu2O composite photocatalyst. The syn-thesized nano-TiO2 and TiO2/Cu2O composite photocatalyst have been characterized by XRD and SEM. Under the irradiation of high voltage mercury lamp,the photocatalytic degradation reaction of reactive brilliant red X-3B has been implemented by using TiO2/Cu2O composite photocatalyst. The influences of the factors such as n(Ti4+):n(Cu2+), pH and reaction temperature on the reactive brilliant red X-3B have been investigated. The results show that under the irradiation of high voltage mercury lamp,compared with nano-TiO2,the photocatalytic degradation effect of Cu2O/TiO2 composite photocatalyst is obviously improved. Using 0.01 g of TiO2/Cu2O as photocatalyst under high voltage mercury lamp irradiation,100 mL of 20 mg/L reactive brilliant red X-3B solution is degraded. When the initial pH is 1,temperature in water bath 60℃,and reaction time 60 min,the optimal degradation rate reaches 83.6%.
Key words:
Cu2O,
TiO2,
photocatalytic,
reactive brilliant red X-3B
中图分类号:
王雅楠, 李俊航, 杜啟君, 刘心建, 许文杰, 方涛. 纳米TiO2/Cu2O光催化降解活性艳红X-3B的研究[J]. 工业水处理, 2018, 38(8): 11-14.
Wang Ya'nan, Li Junhang, Du Qijun, Liu Xinjian, Xu Wenjie, Fang Tao. Research on nano-TiO2/Cu2O photocatalysis for the degradation of reactive brilliant red X-3B[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(8): 11-14.