微波增强H3PW12O40／TiO2光催化降解染料和水杨酸的研究

Photodegradation of Dyes and Salicylic Acid under Microwave-enhanced H_3PW_(12)O_(40)/TiO_2 Catalyst

以孔雀石绿为模型分子,考察了微波无极灯的形状、微波功率和溶液初始浓度对光催化降解效果的影响.并且在最佳微波反应条件下,考察了通过溶胶-凝胶再结合程序升温水热法制备的复合材料H3PW12O40/TiO2对刚果红、酸性黑、酸性品红和水杨酸的光催化降解情况.结果表明,微波无极灯具有更好地增强H3PW12O40/TiO2光催化降解有机污染物的作用.

Photodegradation of malachite green （MG） as the model molecular by microwave discharge electrodeless lamps （MDELs） was studied. The effects of different parameters in degradation of MG were discussed： the MDEL shape, the microwave power and the initial solution concentration. Additionally, the photodegradation of congo red, acid black, acid fuchsine, salicylic acid had been investigated under the optimal reaction condition by the use of the composite H3PW12O40/TiO2 which prepared by combination of the methods of sol-gel and hydrothermal treatment. The results showed that the MDEL is a new treatment method in degradation of organic contaminants.