Abstract

Pt/N–TiO2 aerogel photocatalysts were obtained by means of sol–gel process followed by low temperature supercritical drying. Urea and guanidine-HCl were used as nitrogen sources. Pt clusters were loaded on photocatalysts surface by photoreduction process. Enhanced photocatalytic activities and H2 evolution rates were obtained on photocatalysts containing nitrogen impurities.

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