Zn2 +-assisted synthesis of concave Cu2O crystals and enhanced photocatalytic properties |
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| Affiliation: | 1. School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, China;2. Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education & Xinjiang Uyghur Autonomous Region, Xinjiang University, Urumqi 830046, China;1. William G. Lowrie Department of Chemical & Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA;2. Department of Chemical Engineering, Pennsylvania State University, University Park, PA 16802, USA;3. Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA |
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| Abstract: | The effects of Zn2 + on the structure Cu2O crystals and photocatalytic decoloration of methylene orange (MO) were studied. Samples were characterized by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM), and Ultraviolet–Visible Spectroscopic (UV–VIS). The results indicated that Zn2 + ions can transform the surface curvature of Cu2O microcrystals from convex to concave. Tests of photodecoloration showed that the concave trisoctahedron Cu2O microcrystals exhibited higher catalytic activity than those of octahedra Cu2O and convex Cu2O for MO under visible light. |
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