Preparation and Photocatalytic Activity of TiO2/Opal Composite

Qing Shan Li; Biao Zhan; Wei Hong; Guang Zhong Xing

doi:10.4028/www.scientific.net/AMR.668.13

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 668Preparation and Photocatalytic Activity of...

Preparation and Photocatalytic Activity of TiO₂/Opal Composite

Abstract:

Opal as a carrier, tetrabutyl titanate as a titanium source, TiO2 loaded on opal was prepared by sol-gel technique. The photocatalysts were characterized by XRD, TEM and UV-VIS absorption spectrum. Their photocatalytic activities were examined by the photocatalytic decolorization of methylene blue solution under UV light irradiation. The effects of calcination temperature, the amount of TiO2 loading and pH on photocatalytic activities were discussed. The results show that TiO2 supported on opal induced enhancement of photocatalytic decolorization rant and TiO2 doping is about 30 wt. % with 92.15% of decolorization rate at 700°C.

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Periodical:

Advanced Materials Research (Volume 668)

Pages:

13-16

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.668.13

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Online since:

March 2013

Authors:

Qing Shan Li, Biao Zhan, Wei Hong, Guang Zhong Xing

Keywords:

Methylene Blue, OPAL, Photocatalytic, Sol-Gel, TiO₂

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