Cuprous oxides thin film with different morphologies were formed on F-doped tin oxide (FTO) covered glass substrates by potentiostatic deposition of cupric acetate. The effects of electrodeposition temperature and Bron the crystal morphologies of cuprous oxide were studied. Different crystal morphologies of cuprous oxides were obtained by the change of electrodeposition temperature or the concentrations of Br-. The network-like and tetrahedron morphologies of Cu 2 O crystals were obtained when using higher deposition temperature and concentration of KBr, respectively. Photoelectrochemical behavior of the cuprous oxides thin films prepared in the system was also studied.

Abstract. In the practical applications of photocatalysis, novel organic-inorganic composite photocatalyst offers new opportunities. Here, novel visible light-induced organic-inorganic composite photocatalyst based on carbon nitride intercalation compound (CNIC) composite photocatalyst was synthesized. The photocatalyst was characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. The photocatalytic oxidation ability of the novel composite photocatalyst was evaluated by the photocatalytic activity in photoreduction of CO2. Due to enhancement of photo-generated electron-hole separations at the interface, the as-prepared composite photocatalyst exhibits an improved photocatalytic activity.

No abstract