Nano-Ru confinement inside TiO2 nanotube with highly efficient visible light photocatalytic performance

YU  Xiang; ZHONG Yinxian; YANG Xu; LI Xinjun

doi:10.13471/j.cnki.acta.snus.2016.02.016

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Nano-Ru confinement inside TiO2 nanotube with highly efficient visible light photocatalytic performance

更新时间：2023-12-11

- Nano-Ru confinement inside TiO2 nanotube with highly efficient visible light photocatalytic performance
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 55, Issue 2, Pages: 85-88(2016)
- 作者机构：
  
  1. 暨南大学生命科学与技术学院化学系,广东,广州,510632
  2. 
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2016.02.016
  CLC：
- Published：2016，
  
  Published Online：25 March 2016，
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YU Xiang, ZHONG Yinxian, YANG Xu, et al. Nano-Ru confinement inside TiO2 nanotube with highly efficient visible light photocatalytic performance. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 55(2):85-88(2016)
DOI：

YU Xiang, ZHONG Yinxian, YANG Xu, et al. Nano-Ru confinement inside TiO2 nanotube with highly efficient visible light photocatalytic performance. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 55(2):85-88(2016) DOI： 10.13471/j.cnki.acta.snus.2016.02.016.

摘要

采用丙基三甲氧基硅烷（KH570）偶联剂对TiO

纳米管外表面进行疏水改性，通过浸渍法再经氢气热还原法将Ru纳米颗粒原位选择性沉积在TiO

纳米管内。采用TEM、HREM、EDS、HAADFSTEM和紫外可见吸收光谱仪分别对形貌和结构进行表征。结果表明，内嵌于TiO

纳米管的Ru纳米颗粒粒径约为2~3 nm，TiO

纳米管内负载w=2% Ru的光催化性能最好，其光降解罗丹明B的效率大约是单一TiO

纳米管的18倍。

Abstract

The exterior surfaces of the TiO

nanotube (TNT) were modified by a silane coupling agent to make nano-Ru selectively deposit on the inner wall. The as prepared catalysts were characterized by transmission electron microscope (TEM)

high-resolution transmission electron microscopy (HREM)

energy dispersive spectrometer (EDS)

high-angle annular dark field image(HAADF)

scanning transmission electron microscopy (STEM) and UV-vis absorption spectra. The results confirm that nano-Ru particles in the range of 2~3 nm in diameter are entrapped in the TNTs. TNTs-confined 2% Ru exhibits the best photocatalytic performance

which photocatalytic efficient is 1-8 times of pure TNTs.

关键词

水热法限域催化TiO2纳米管贵金属

Keywords

hydrothermal methodconfinement catalysisTiO2nanotubenoble metals

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