TiO_2固定床光催化氧化活性的研究  

Photocatalytic Activity of TiO_2 in Fixed-bed Reactor

作　　者：范山湖[1] 陆强[2] 湛社霞[1] 李玉光[1] 石宗炳 

机构地区：[1]中山大学化学与化学工程学院,广州510275 [2]中山大学科技开发处 [3]广州市环保研究所

出　　处：《中山大学学报（自然科学版）》1999年第6期127-128,共2页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广州市环境保护局研究资金资助项目

摘　　要：光催化氧化在废水治理有广泛应用前景[1,2],把催化剂固定在载体上,使其既具有较好的光催化活性,又能多次使用及再生,是光催化氧化在实际应用中的关键问题[3].本工作采用透光性能较好的石英砂为载体,考察负载Ｐ25ＴｉＯ2光催化活性,得到一些有意义的结果,为进一步研究光催?..A series of loading of TiO_2 quartz sand photocatalysts were prepared by impregnation The phase and the shape of TiO 2 on sands were determined by XRD and SEM The photocatalytic degradation of phenol was used as probe reaction It was found that the catalyst with loading of 0 72%～0 94% showed the best photocatalytic activity No further increasing in photocatalytic activity was observed under the present conditions when loading of TiO 2 was higher than 0 94%

关 键 词：光催化氧化 固定床反应器 二氧化钛 废水处理 

分 类 号：TQ034[化学工程] X703[环境科学与工程—环境工程]