二氧化钛悬浆体系光催化降解苯酚的研究

Study on Photocatalytic Degradation of Phenol with Titanium Dioxide Suspension

采用二氧化钛悬浆体系 ,考察了光催化降解苯酚的影响因素 .实验结果表明 ,投加 2 0 0mg L的二氧化钛粉末 ,在pH =5 .6的酸性条件下 ,加入 15mg L的H2 O2 ,用 14W的紫外灯照射 2 .8mg L的苯酚 10min ,苯酚的降解率可达 97.8% ,证明二氧化钛光催化氧化法是一种降解苯酚的有效方法 .

This paper investigated factors of photocatalytic degradation of phenol in Titanium Dioxide suspension. It was found that using 200 mg/L TiO 2 powder and 15 mg/L H 2 O 2 , when pH=5.6, the phenol solution had been degraded 97.8% from the initial value 2.8 mg/L within 10 minute by a 14-Watt ultraviolet lamp.Photocatalytic Oxidation with TiO 2 is proved to be an efficient method to degrade phenol.