期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 30, 页码 15309-15315出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm31576a
关键词
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资金
- National Natural Science Foundation of China [21176116]
- Natural Science Foundation of Jiangsu Province [BK2011801]
- National 863 Plans Projects of China [2012AA03A606]
- Natural Science Foundation for Colleges and Universities in Jiangsu Province [10 K.JB530003]
A visible-light responsive C, N and Ce co-doped TiO2 mesoporous membrane has been synthesized via a weakly alkaline sol-gel route using P123 template. The co-doping of C, N and Ce resulted in a lowered band gap of 2.14 eV which improved the photocatalytic activity in visible light. The Ce-dopant was found to strengthen the Ti-O bond that stabilized the anatase phase as well as the assembled interconnected mesoporous structure during high temperature calcination. The stabilization of the crystal phase and pore structure resulted in a higher surface area, smaller and more uniform pore size in the membrane. The membrane exhibited a low cut-off molecular weight of 3300 Da and a water flux of 4.05 L m(-2) h(-1) per bar.
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