A. V. Zhurenok, A. A. Sushnikova, A. A. Valeeva, A. Yu. Kurenkova, D. D. Mishchenko, E. A. Kozlova, A. A. Rempel’
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Composite Photocatalysts g-C3N4/TiO2 for Hydrogen Production and Dye Decomposition
Abstract
The photocatalytic activity of the g-C3N4/TiO2 composite samples in the processes of dye (methylene blue) decomposition and hydrogen evolution from an aqueous ethanol solution under the action of visible radiation (400 nm) has been studied. A new original method for the synthesis of the g-C3N4/TiO2 composite by depositing g-C3N4/TiO2 to TiO2 nanoparticles during sol-gel synthesis is proposed. The synthesized photocatalysts were characterized by X-ray diffraction, low-temperature gas adsorption, X-ray photoelectron spectroscopy, high-resolution transmission microscopy, and diffuse reflectance spectroscopy in the UV and visible regions. The maximum activity in the hydrogen evolution reaction was 1.3 mmol \({\text{g}}_{{{\text{cat}}}}^{{ - 1}}\) h–1, which exceeds the rate of hydrogen evolution on the unmodified g-C3N4 and TiO2 samples.
期刊介绍：
Kinetics and Catalysis Russian is a periodical that publishes theoretical and experimental works on homogeneous and heterogeneous kinetics and catalysis. Other topics include the mechanism and kinetics of noncatalytic processes in gaseous, liquid, and solid phases, quantum chemical calculations in kinetics and catalysis, methods of studying catalytic processes and catalysts, the chemistry of catalysts and adsorbent surfaces, the structure and physicochemical properties of catalysts, preparation and poisoning of catalysts, macrokinetics, and computer simulations in catalysis. The journal also publishes review articles on contemporary problems in kinetics and catalysis. The journal welcomes manuscripts from all countries in the English or Russian language.
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