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

Zu Min Qiu; Ya Zhou Lv; Zong Jian He

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

Paper Titles

Photochemical Degradation of Azo Dyes in the Presence of Hydrogen Peroxide and Hematite under Visible Light Irradiation: Surface Complex Forming and Reaction Mechanism
p.1612

Fixed-Bed Column Study for the Removal of Ag(I)and Cr(III) from Aqueous Solutions Using Puffed Rice Husk
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Solvent Extraction and Separation of Palladium(II) from Hydrochloric Acid Medium with N-Benzothiazolylazo Butyl Imide
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Direct Synthesis of DMC from CO₂ and CH₃OH over Ce_xZr _1-x-0.1Y _0.1 O₂ Catalysts
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Preparation and Photocatalytic Activity of Pb²⁺- SiO₂-TiO₂ Composite Catalyst
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Preparation of Bi_XY_(2-X)O₃ and its Photocatalytic Degradation of Molasses Fermentation Wastewater under Visible-Light Irradiation
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Research on Correlation of Total Bacterial and other water quality index in Water Distribution Network
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Adsorption Behavior and Thermodynamic Characteristics of p,p’- DDT on Expanded Graphite
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Preparation and Characterization of Rare Earth Solid Superacids SO₄^2-/TiO₂-SnO₂-Dy₂O₃
p.1659

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

Abstract:

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.