Preparation of mesoporous Ag-containing TiO2 heterojunction film and its photocatalytic property

Mesoporous Ag/TiO 2 heterojunction films (Ag-MTHF) with enhanced photocatalytic activity were synthesized by a three-step approach including an electrochemical anodization technique followed by successive ionic layer adsorption and reaction (SILAR) and solvothermal methods. The distribution of Ag na...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2015-03, Vol.17 (3), p.1, Article 133
Main Authors: Wang, Q. Y., Qiao, J. L., Cui, X. Y., Zhong, J. S., Xu, Y. B., Zhang, S. H., Zhang, Q. H., Chang, P., Li, M., Zhang, C., Gao, S. M.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electrochemistry
Inorganic Chemistry
Lasers
Materials Science
Nanoparticles
Nanotechnology
Optical Devices
Optics
Photodegradation
Photonics
Physical Chemistry
Research Paper
Titanium dioxide
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Summary:Mesoporous Ag/TiO 2 heterojunction films (Ag-MTHF) with enhanced photocatalytic activity were synthesized by a three-step approach including an electrochemical anodization technique followed by successive ionic layer adsorption and reaction (SILAR) and solvothermal methods. The distribution of Ag nanoparticles on the inner structure of the mesoporous TiO 2 film was confirmed by field emission scanning electron (FE-SEM) and transmission electron microscopes (TEM). The formation progress of the novel mesoporous Ag/TiO 2 nanojunction film with Ag average diameter of 17 nm was illuminated. The formed nanojunction between Ag and TiO 2 nanoparticles largely enhanced the photocatalytic degradation of methyl orangey (MO), and the corresponding mechanism was proposed.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-015-2941-5