Preparation of TiO2/Al-MCM-41 mesoporous materials from coal-series kaolin and photodegradation of methyl orange

• Published in: Materials science--Poland Vol. 31; no. 3; pp. 372 - 377
• Main Authors: Li, Shuiping, Wu, Qisheng, Cui, Chong, Lu, Guosen, Zhang, Changsen, Yan, Zhiye
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.08.2013; Versita
• Subjects: Al-MCM-41; Chemistry and Materials Science; coal-series kaolin; Materials Science; photocatalytic degradation; Research Article; TiO2; TiO; photocatalytic degradation; Al-MCM-41; coal-series kaolin
• ISSN: 2083-1331; 2083-134X
• DOI: 10.2478/s13536-013-0116-6

TiO 2 /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 TiO 2 /Al-MCM-41 mesoporous materials were characterized by XRD, FT-IR, HRTEM, N 2 adsorption-desorption and the photocatalytic degradation of methyl orange solution under visible light irradiation. The results showed that the TiO 2 /Al-MCM-41 mesoporous materials possessed a high surface area of 369.9–751.3 m 2 /g and a homogeneous pore diameters of 2.3–2.8 nm. The titania crystalline phase was anatase, and the particles size of TiO 2 increased with TiO 2 content. The Al-MCM-41 mesoporous materials exhibited excellent photodegradation activity under visible-light irradiation for methyl orange.