节点文献

载钛中孔二氧化硅分子筛的光催化性能

STUDY ON PHOTOCATALYTIC PERFORMANICE OF TITANIA SUPPORTED ON MESOPOROUS SILICA MOLECULAR SIEVE

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Dai Qing 1,2 , Lu Chune 2, Weng Kuiping 2, Yuan Chunwei 1 (1 National Laboratory of Molecular and Biomolecular Electronics, Southeast University, Nanjing 210096 2 Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 210

【机构】东南大学分子与生物分子电子学开放实验室!南京210096；东南大学化学化工系,南京210096,东南大学化学化工系!南京210096,东南大学化学化工系!南京210096,东南大学分子与生物分子电子学开放实验室!南京210096；

【摘要】分别以单一ＴｉＯ２纳米粒子及不同ＴｉＯ２覆盖率的中孔分子筛（ＴｉＯ２／ＨＭＳ）和微孔分子筛（ＴｉＯ２／ＮａＹ）为光催化剂，以２，４，６三氯苯酚（ＴＣＰ）为降解对象，考察了两类分子筛担载ＴｉＯ２的光催化性能．结果表明：在钛含量相同的条件下，ＴｉＯ２／ＨＭＳ的光催化活性高于ＴｉＯ２／ＮａＹ和单一ＴｉＯ２的光催化活性；ＴｉＯ２负载量较低时，ＴｉＯ２／ＨＭＳ即可显示有高的光催化活性，且其光催化活性随着中孔分子筛孔径的增大而升高更多还原

【Abstract】 The photocatalytic performance of titania supported on hexagonal mesoporous silica (HMS) and zeolite Y (NaY) for degradation of 2,4,6 trichlorophenol (TCP) was investigated. It was found that the photocatalytic activity of TiO 2/HMS was higher than that of TiO 2 powder itself and TiO 2/NaY. It was also found that the TiO 2 /HMS had higher photocatalytic activity at lower Ti content. The larger the pore size of HMS used as the support is, the higher the photocatalytic activity of TiO 2 for the degradation of TCP is. These results suggest that the support structure is a main factor responsible for the enhancement of photocatalytic activity of TiO 2.更多还原

【关键词】纳米粒子；二氧化钛；二氧化硅；中孔分子筛； Y型分子筛；光催化；三氯苯酚；
【Key words】 nanoparticle； titania； silica； mesoporous molecular sieve； zeolite Y； photocatalysis； trichlorophenol；

【基金】中国科学院感光化学研究所光化学国家重点实验室开放课题;国家博士后基金

【文献出处】催化学报 ,CHINESE JOURNAL OF CATALYSIS , 编辑部邮箱 ,1999年03期

【被引频次】77
【下载频次】373

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献