MFI-type (ZSM-5) zeolite-filled TiO2 nanotubes for enhanced photocatalytic activity

被引：21

作者：

Paramasivam, I. ^{[1
]}

Avhale, A. ^{[2
]}

Inayat, A. ^{[2
]}

Boesmann, A. ^{[2
]}

Schmuki, P. ^{[1
]}

Schwieger, W. ^{[2
]}

机构：

[1] Univ Erlangen Nurnberg, LKO, WW4, Dept Mat Sci, D-910589 Erlangen, Germany

[2] Univ Erlangen Nurnberg, Dept Chem React Engn, D-91058 Erlangen, Germany

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 22期

关键词：

VISIBLE-LIGHT PHOTOCATALYSIS; TITANIUM-DIOXIDE; METHYL-ORANGE; FILMS; DEGRADATION; GROWTH; ION; MICROSTRUCTURE; NANOPARTICLES; EFFICIENCY;

D O I：

10.1088/0957-4484/20/22/225607

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work demonstrates enhanced photocatalytic activity for zeolite-filled TiO2 nanotubes. ZSM-5 zeolite nanocrystals were grown on and into a TiO2 nanotubular skeleton (TiNT/ZSM-5) by multi-step hydrothermal synthesis consisting of in situ seeding and multiple in situ crystallization (MISC). The resulting zeolite nanocrystals were in the range of a few nanometers and they adhere well to the nanotubular inner walls. After crystallization, the photocatalytic activity of this zeolite-filled nanotube catalyst system was compared with neat anatase TiO2 nanotube (TiNT) and with calcined ZSM-5 powder. The results show for TiNT/ZSM-5 a highly enhanced efficiency for the decomposition of acetophenone (used as an aromatic model organic pollutant).

引用

页数：5

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