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Preparation of TiO2/Al-MCM-41 mesoporous materials from coal-series kaolin and photodegradation of methyl orange |
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| Authors: | Shuiping Li Qisheng Wu Chong Cui Guosen Lu Changsen Zhang Zhiye Yan |
| Affiliation: | 1. School of Materials Engineering, Yancheng Institute of Technology, Jiangsu Yancheng, 224051, P. R. China 2. School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, Nanjing, 210094, P. R. China 3. College of Materials Science and Engineering, Nanjing University of Technology, Jiangsu Nanjing, 210009, P. R. China |
| Abstract: | TiO2/Al-MCM-41 mesoporous materials were prepared via sol-gel method by loading titania onto Al-MCM-41 mesoporous molecular sieve by hydrothermal treatment from coal-series kaolin as raw material. The TiO2/Al-MCM-41 mesoporous materials were characterized by XRD, FT-IR, HRTEM, N2 adsorption-desorption and the photocatalytic degradation of methyl orange solution under visible light irradiation. The results showed that the TiO2/Al-MCM-41 mesoporous materials possessed a high surface area of 369.9–751.3 m2/g and a homogeneous pore diameters of 2.3–2.8 nm. The titania crystalline phase was anatase, and the particles size of TiO2 increased with TiO2 content. The Al-MCM-41 mesoporous materials exhibited excellent photodegradation activity under visible-light irradiation for methyl orange. |
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