Journal
RSC ADVANCES
Volume 4, Issue 45, Pages 23831-23837Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra02161d
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Funding
- National Natural Science Foundation of China [11374013, 61290301, 51072001, 51272001, 21374108]
- Research Fund for the Doctoral Program of Higher Education of China [20133401110002, 20133402120019]
- Higher Educational Natural Science Foundation of Anhui Province [KJ2012A007, KJ2012A083]
- 211 project of Anhui University
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In this paper, TiO2 nanowires decorated with WO3 nanoparticles (WO3-TWS) on Ti foils were prepared using simple hydrothermal treatment, wet impregnation and subsequent annealing treatment, sequentially. Ag nanoparticles were successfully deposited on the obtained WO3-TWS by a successive ionic layer adsorption reaction technique. Ultraviolet-visible absorption spectra showed that the introduction of Ag and WO3 particles on TiO2 nanowire surfaces extends the absorption edge to the visible light regime. More importantly, the increase of Ag content greatly enhances the absorption intensity in the visible light regime. The photocatalytic experiment results revealed that TiO2 nanowires decorated with Ag and WO3 nanoparticles possess higher photocatalytic activities toward methyl orange than pure TiO2 nanowires. The degradation percentage of 95.6% after 10 cycles indicated that the as-prepared photocatalyst composites exhibited excellent long-time recyclability for the degradation of contaminants.
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