Photocatalytic decolorization of reactive red 198 dye by a TiO2–activated carbon nano-composite derived from the sol–gel method
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- 作者：Ameneh Eshaghi ; Sam Hayeripour ; Akbar Eshaghi
- 关键词：TiO2 ; Nano ; composite ; Photocatalytic ; Reactive red 198
- 刊名：Research on Chemical Intermediates
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：42
- 期：3
- 页码：2461-2471
- 全文大小：1,175 KB
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Sam Hayeripour (1)
Akbar Eshaghi (2)
1. Faculty of Environmental Science, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
2. Faculty of Materials Science and Engineering, Maleke Ashtar University of Technology, Isfahan, Shahinshahr, Iran - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Catalysis
Physical Chemistry
Inorganic Chemistry - 出版者：Springer Netherlands
- ISSN：1568-5675
文摘
In this research, a TiO2–activated carbon nano-composite was prepared by a sol–gel method and characterized by XRD, FE-SEM, EDS, FTIR, BET surface area, photoluminescence spectroscopy and UV–Vis diffuse reflectance spectroscopy. The photocatalytic activity of the nano-composite was evaluated through degradation of reactive red 198 (RR 198) under UV light, and was compared to unsupported TiO2. The XRD result indicated that the TiO2 nano-composite contained only anatase phase. The surface area of the TiO2 increased from 48 to 100 m2/g through the fabrication of the nano-composite. The photocatalytic results indicated that the RR 198 was decolorized around 42 and 38 % during a 210-min irradiation period in the presence of nano-composite and TiO2, respectively. It means that nano-composite enhanced the photocatalytic activity of the TiO2 nano-particles. After 20 h of irradiation in the presence of the nano-composite, 97 % of RR 198 had degraded.