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- W2116978839 abstract "A series of Pt-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>films with nanocrystaline structure was prepared by a procedure of photodeposition and subsequent dip-coating. The Pt-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>films were characterized by X-ray diffraction, scanning electronic microscope, electrochemical characterization to examine the surface structure, chemical composition, and the photoelectrochemical properties. The photocatalytic activity of the Pt-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>films was evaluated in the photocatalytic (PC) and photoelectrocatalytic (PEC) degradation of formic acid in aqueous solution. Compared with a<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>film, the efficiency of formic acid degradation using the Pt-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>films was significantly higher in both the PC and PEC processes. The enhancement is attributed to the action of Pt deposits on the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>surface, which play a key role by attracting conduction band photoelectrons. In the PEC process, the anodic bias externally applied on the illuminated Pt-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mtext>TiO</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>films can further drive away the accumulated photoelectrons from the metal deposits and promote a process of interfacial charge transfer." @default.
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- W2116978839 date "2009-01-01" @default.
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- W2116978839 title "Photoelectrocatalytic Degradation of Organic Pollutants in Aqueous Solution Using a Pt-TiO<sub>2</sub>Film" @default.
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- W2116978839 doi "https://doi.org/10.1155/2009/634369" @default.
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