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Preparation and characterization of nano-titania composite-support catalyst

Bingxin Cai

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Abstract

The composite supports are prepared from nanosized TiO_2 respectively loaded on γ-Al_2O_3 and ZRP-5 molecular sieve by sol-gel method.Different ways are adopted to load nanosized V_2O_5 on the two composite-supports and catalysts are characterized by XRD?TEM and IR. The results showed that supported TiO_2 had a good dispersion,the size of TiO_2 was between 25～35 nm,the grain size of TiO_2 on the ZRP-5 were smaller than on Al_2O_3.The interaction of Ti-Si and Ti-Al would promote new property.The size of V_2O_5 is about 8～9 nm.

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What this paper is about

The composite supports are prepared from nanosized TiO_2 respectively loaded on γ-Al_2O_3 and ZRP-5 molecular sieve by sol-gel method.Different ways are adopted to load nanosized V_2O_5 on the two composite-supports and catalysts are characterized by XRD?TEM and IR. The results showed that supported TiO_2 had a good dispersion,the size of TiO_2 was between 25～35 nm,the grain size of TiO_2 on the ZRP-5 were smaller than on Al_2O_3.The interaction of Ti-Si and Ti-Al would promote new property.The size of V_2O_5 is about 8～9 nm.

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Available abstract

The composite supports are prepared from nanosized TiO_2 respectively loaded on γ-Al_2O_3 and ZRP-5 molecular sieve by sol-gel method.Different ways are adopted to load nanosized V_2O_5 on the two composite-supports and catalysts are characterized by XRD?TEM and IR. The results showed that supported TiO_2 had a good dispersion,the size of TiO_2 was between 25～35 nm,the grain size of TiO_2 on the ZRP-5 were smaller than on Al_2O_3.The interaction of Ti-Si and Ti-Al would promote new property.The size of V_2O_5 is about 8～9 nm.

Key concepts: Composite number, Catalysis, Grain size, Materials science, Dispersion (optics), Chemical engineering, Sol-gel, Nano-

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