Synthesis and Paclobutrazol Visible-Light Degradation of Al/S Doped TiO₂ Mesoporous Materials with Pyridine as a Template

Abstract:

Al and S co-doped TiO2 (S-Al-TiO2) mesoporous materials as a kind of visible light photo- catalysts are prepared using pyridine as a template through a solid state reaction route. The materials features are characterized by the advanced instruments. The photodegradation kinetic of paclobutra- zol is investigated. It is shown that the doping of S and Al could effectively inhibit the growth of anatase TiO2, both S and Al have entered into the lattice of TiO2. Surface area of 81.3m2/g and narrow pore size distribution (~2.1nm) are presented, it not only enables the visible-light absorption but also promotes photocatalytic property of paclobutrazol. Moreover, within 150 min of visible-light irradiation, the photocatalytic degradation of paclobutrazol approximately follows an order kinetics, and the photodegradation rate in 46.7% and reaction rate constant of 0.00414 min-1 are obtained.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 1602-1608
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.1602
• Online since: January 2013
• Authors: Shao You Liu, Fei Zhang, Chen Yan Luo, Tian Zhi Jiang, Qing Ge Feng
• Keywords: Al Co-Doped TiO₂, Mesoporous Material, Paclobutrazol Photodegradation, Pyridine, S

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