Preparation and Photocatalytic Activity of Pb2+- SiO2-TiO2 Composite Catalyst

Abstract:

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Pb2+-SiO2-TiO2(Hereinafter referred to as PST) composite catalysts were prepared by sol-gel method from tetrabutyl titanate(TBOT),tetraetethyl orthosilicate(TEOS) and lead nitrate. Properties of the catalyst were characterized by means of XRD and FT-IR. In addition, the photocatalytic activities of Pb2+ doped silicon-titanium composite samples were evaluated by the result of photocatalytic degradation of methyl orange as a model reaction under simulated sunlight.The results have been showed that the optimum Pb2+ doping concentration is 1.5% and the optimum heat treatment temperature is 500°C. Photocatalytic degradation conversion of methyl orange (10 mg/L) on PST catalyst could reach above 90.0% under simulated sunlight for 3h.

Info:

Periodical:

Advanced Materials Research (Volumes 287-290)

Edited by:

Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li

Pages:

1636-1639

DOI:

10.4028/www.scientific.net/AMR.287-290.1636

Citation:

Z. M. Qiu et al., "Preparation and Photocatalytic Activity of Pb2+- SiO2-TiO2 Composite Catalyst", Advanced Materials Research, Vols. 287-290, pp. 1636-1639, 2011

Online since:

July 2011

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$35.00

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