【摘 要】
：
Uniformly dispersed Ag nanoparticles(NPs)were successfully decorated into boththe outer and inner surface of the TiO2 nanotube arrays(NTs)through a simple polyolmethod.The as-prepared Ag/TiO2 NTs were
【机 构】
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School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,C
【出 处】
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第十四届全国太阳能光化学与光催化学术会议
论文部分内容阅读
Uniformly dispersed Ag nanoparticles(NPs)were successfully decorated into boththe outer and inner surface of the TiO2 nanotube arrays(NTs)through a simple polyolmethod.The as-prepared Ag/TiO2 NTs were characterized by scanning electronmicroscopy,transmission electron microscope,X-ray diffraction,X-ray photoelectronspectroscopy,and ultraviolet-visilbe light absorption spectra techniques.Photoelectrochemical behaviors were investigated via photocurrent response andelectrochemical impedance spectroscopy(EIS).Photocatalytic activity activities ofAg/TiO2 NTs were evaluated by degradation of AO-Ⅱ under visible light irradiation.The results showed that Ag/TiO2 NTs electrode exhibited a greater separationefficiency of photogenerated electron–hole pairs and a faster charge transfer than thepure TiO2 NTs film at the solid–liquid interface.Furthermore,photocatalyticefficiency of Ag/TiO2 NTs is more than 8 times than pure TiO2 NTs.Comparing withthe electrochemical deposition method in our previous work,the photocatalyticactivity of Ag/TiO2 NTs with polyol method had been obviously increased.The newphotocatalyst would be a promising material for solar energy conversion and organicpollutant degradation.
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