Characterization and photocatalytic properties of Ru, C co-modified one-dimensional TiO2-based composites prepared via a single precursor approach
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- 作者：Juanjuan Song (1)
Baolin Zhu (1)
Weiling Zhao (1)
Xiaojing Hu (1)
Yukun Shi (1)
Weiping Huang (1) - 关键词：Titanium dioxide ; Ruthenium ; Carbon ; Photocatalytic activity
- 刊名：Journal of Nanoparticle Research
- 出版年：2013
- 出版时间：May 2013
- 年：2013
- 卷：15
- 期：5
- 全文大小：636 KB
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Baolin Zhu (1)
Weiling Zhao (1)
Xiaojing Hu (1)
Yukun Shi (1)
Weiping Huang (1)
1. The Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Lab of Metal and Molecule-based Material Chemistry and College of Chemistry, Nankai University, Tianjin, 300071, China - ISSN：1572-896X
文摘
With Ru3(CO)12 being used as precursor, Ru and C co-modified one-dimensional nano TiO2 composites (Ru–C/TiO2) were prepared by the single precursor approach. The composites were characterized with TEM, XRD, UV–Vis DRS, XPS, TG–DTA, ICP, and EA. TEM images showed that RuO2 nanoparticles, whose size was in the range of 3-?nm, were uniformly dispersed on the surface of TiO2. XPS results revealed that the carbon in Ru–C/TiO2 calcinated in N2 atmosphere existed as active carbon and carbonate, and ruthenium existed as Ru4+ ions. The photocatalytic performances of products were evaluated by monitoring their catalytic activities for degradation of methyl orange solution under both UV and simulated sunlight irradiations. The influences of contents of ruthenium and carbon, calcination temperature and atmosphere on the photocatalytic activities of the composites were investigated. Obtained results showed that the Ru–C/TiO2 calcinated at 500?°C in N2 atmosphere exhibited higher photocatalytic activity than P25 under the same conditions.