Particle Coating of Talc with TiO₂: Synthesis, Characterization and Photo Catalytic Degradation of Methylene Blue

Abstract:

Talc was used as support for synthesis of TiO₂-based photocatalyst with varying TiO₂ loading. A simple sol-gel method was used to impregnate titanium sol into the interlayers of talc with high speed stirring, followed by calcination at different temperature. The XRD analysis and SEM observation indicated that the anatase phases of TiO₂ were synthesized and individually distributed on the surface of the talc particles. FTIR were used to investigate the molecular group of TiO₂/talc. The wettability of talc was improved by TiO₂ particle coating. The efficiency of the TiO₂-talc composites to remove methylene blue from its aqueous solution was evaluated under UV irradiation. Different sintering temperature influenced the catalytic activity, TiO₂-talc composites enhanced dye degradation in contrast with physical adsorption of Talc or photo-catalytic of pure TiO₂.

• Periodical: Advanced Materials Research (Volumes 781-784)
• Pages: 157-162
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.781-784.157
• Online since: September 2013
• Authors: Ji Pan Lou, Guo Xin Xue, Shi Zhen Li, Juan Wang
• Keywords: Methylene Blue, Photodegradation, TiO₂-talc

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