LED联合玻璃纤维光催化填料对苯酚的降解研究

以钛酸四丁酯为原料，采用浸渍提拉法制备了负载TiO₂的玻璃纤维光催化填料，考察溶液初始pH值、苯酚初始浓度、UV-LED消耗功率以及曝气强度对光催化降解效果的影响.结果表明，在溶液pH=3、苯酚初始浓度为10mg/L、UV-LED输出功率为2.968W，曝气强度为1.8L/min时，光催化反应装置对苯酚的降解率可达97.05%，降解过程遵循准一级反应动力学.此外，该反应装置的能耗较低，催化剂负载的牢固性较好.

Study on the degradation of phenol by UV-LED combined with glass fiber photocatalytic fillers

Tetrabutyl titanate as raw materials, adopted dip-coating method to prepare the glass fiber photocatalytic filler loaded with TiO₂, effects of catalytic degradation was examined by initial solution of pH, initial concentration of phenol, UV-LED consumed power and the aeration intensity. The results shown that, while the solution pH of 3, phenol initial concentration of 10mg/L, UV-LED output power of 2.968W and the aeration intensity of 1.8L/min, the degradation rate of phenol can reach 97.05%, the degradation process follows the first order reaction kinetic model. In addition, this photocatalytic reactor has advantage, such as low energy consumption, and better stability loaded with catalyst.