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Synthesis of porous CuO/Cu2O composite microsphere and its visible light photocatalytic degradation for dye pollutions

XIAOYAN GAO1,2, WEIGANG DU1, DONG LI1, KUN HONG1,2, XIAOJIE ZHANG1,2,3,*

Affiliation

  1. National & Local Joint Engineering Research Center for Miner al Salt Deep Utilization, Huaiyin Institute of Technology, Huaian 223003, China
  2. Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu, Huaiyin Institute of Technology, Jiangsu Province, Huaian 223003, P. R. China
  3. School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China

Abstract

In this work, porous CuO/Cu2O composite microspheres were prepared with a simple hydrothermal method. The porous CuO/Cu2O composite microsphere was applied for photodegradation of methylene orange (MO) under visible light irradiation with the synergistic effect of H2O2 and showed good photocatalytic performance to degrade the MO (100 % with the irradiation time of 70 min). The improved photocatalytic properties of CuO/Cu2O may be ascribed to the formation of p-n heterojunctions between CuO and Cu2O, resulting in the effective separation of photogenerated electron hole pairs and the enhanced absorption of visible light.

Keywords

CuO/Cu2O composite photocatalyst, Heterojunctions, Visible light irradiation, Photocatalytic degradation.

Citation

XIAOYAN GAO, WEIGANG DU, DONG LI, KUN HONG, XIAOJIE ZHANG, Synthesis of porous CuO/Cu2O composite microsphere and its visible light photocatalytic degradation for dye pollutions, Optoelectronics and Advanced Materials - Rapid Communications, 14, 5-6, May-June 2020, pp.289-293 (2020).

Submitted at: May 21, 2019

Accepted at: June 16, 2020