Study on photocatalytic properties of Cu2O/TiO2 heterojunction composite films

Hailing Zhu, Yanyan Tang

Article ID: 1352
Vol 4, Issue 2, 2021

VIEWS - 921 (Abstract) 200 (PDF)

Abstract


Cu2O/TiO2 semiconductor heterostructure photocatalytic composite thin films were prepared by the sol-gel method and magnetron sputtering technology. Uniform and transparent TiO2 thin films were prepared by sol dipping and pulling with butyl titanate as the raw material. P-type Cu2O thin films were reactive sputtered on the surface of TiO2 thin films with metal Cu as target source. The catalysts were characterized by SEM, XRD and UV-Vis. The photocatalytic activity of heterojunction composite films under simulated sunlight was investigated by dye degradation experiments, and its mechanism is discussed. The results show that the heterojunction film formed by the composite of TiO2 and Cu2O has good photocatalytic activity under simulated sunlight. The heterojunction composite expands the light response range and light response intensity of the catalyst and improves the quantum efficiency. It is a kind of photocatalytic composite film that makes full use of solar energy.

Keywords


Cu2O/TiO2; Composite Film; Heterojunction; Photocatalysis; Solar Energy

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DOI: https://doi.org/10.24294/ace.v4i2.1352

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