碳掺杂TiO_2光催化剂处理有机污染物的研究  

The Study for Degradation Organic Pollutants of C-doped TiO_2 Photo Catalyst

作　　者：田大惠[1] 

机构地区：[1]太原大学外语师范学院自然科学基础部,山西太原030012

出　　处：《山西师范大学学报（自然科学版）》2012年第1期59-63,共5页Journal of Shanxi Normal University(Natural Science Edition)

摘　　要：本文利用自制的碳掺杂改性TiO2光催化剂对甲基橙的光催化降解进行了研究,探索了光催化剂的最佳活性条件.实验表明:催化剂在350℃下焙烧4 h,且负载量为3∶2时光催化活性最佳;当催化剂用量为0.3 g时,光照0.5 h甲基橙的降解率为99%以上;当双氧水用量为2 mL时光催化剂催化活性最高,同时比较了紫外光下和太阳光下降解效果,显然太阳光下效果远远差于紫外光下的降解效果,但催化剂已经向可见光吸收范围转移.In this paper the photocatalytic degradation of methyl orange by utilizing the self-made C-doped Modified TiO2 was systematically investigated,conducting extensive research on the best felicity conditions of photocatalyst.The results showed that under the condition of sintering of 350 ℃ in 4 hours,and the load capacity of 3∶ 2,the catalytic agent was the best.The degradation rate of methyl orange was over 99% when the actual quantity of TiO2 was 0.3 g and the illumination time was 0.5 hour.Moreover,the catalyst was the most active when 2 mL of hydrogen peroxide was used.Comparing the different degradation effect under the lightening conditions of UV light and sunlight,the result was that the degradation effect under sunlight was much lower than that of UV light,but the photocatalyst had been transferred into the visible light.

关 键 词：TIO2 光催化 碳掺杂 降解 

分 类 号：O643[理学—物理化学]