Photocatalytic activity of titania-containing mesoporous SBA-15 silica

被引:54
作者
Wang, Wei [1 ]
Song, Mo [1 ]
机构
[1] Univ Loughborough, Inst Polymer Technol & Mat Engn, Loughborough LE11 3TU, Leics, England
关键词
titania; mesoporous silica; oestrogen; photocatalysis;
D O I
10.1016/j.micromeso.2006.07.001
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Two kinds of titania-containing mesoporous SBA-15 silicas [clogging-free (S15-A and S15-B series) and blocked (S15-D)] were synthesized, and their photo-activities were examined. Specifically, their photocatalytic activities in photo-destructing pollutant molecules, such as phenol, salicylic acid and oestrogen molecules were studied. The results show that blocked and unblocked mesostructures have great influences on the photo-activity of such titania-containing mesoporous silicas. The clogging-free titania-containing mesoporous silicas S15-A and S15-B show some advantages in destructing 'big' pollutant molecules (oestrogen) over S15-D, which is quite active for destructing 'small' pollutant molecules (phenol and salicylic acid). (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:255 / 261
页数:7
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