La-modified mesoporous TiO2 nanoparticles with enhanced photocatalytic activity for elimination of VOCs

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• 作者：Xiao-Miao Chen ; Zheng-Jun Liu ; Jian-Ting Tang ; Chun-Lin Teng…
• 关键词：Photocatalysis ; La ; modified ; Mesoporous TiO2 ; VOCs
• 刊名：Journal of Porous Materials
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：22
• 期：2
• 页码：361-367
• 全文大小：1,062 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Catalysis
  Characterization and Evaluation Materials
  Physical Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1573-4854

文摘

La-modified mesoporous TiO2 were synthesized via a sol–gel route using Pluronic P123 as template. The XRD and TEM results show that La loading favors the formation of anatase with smaller crystal size. The photocatalytic activity of the mesoporous anatase was tested in photocatalytic elimination of VOCs. The photocatalysts exhibited higher activity than that of the commercial photocatalyst (Degussa, P25) under either ultraviolet or visible light irradiation. The superior activity of the mesoporous anatase may be attributed to the synergic effects of the surface area, crystal size and loaded La species.