CuO nanosheet as a recyclable Fenton-like catalyst prepared from simulated Cu(ii) waste effluents by alkaline H2O2 reaction. Issue 1 (27th November 2018)

• Record Type: Journal Article
• Authors: Fang, Mengyuan; Zheng, Ru; Wu, Yunwen; Yue, Dongting; Qian, Xufang; Zhao, Yixin; Bian, Zhenfeng
• Is Part Of: Environmental science. Volume 6:Issue 1(2019)
• Page Start: 105
• Page End: 114
• Publication Date: 2018-11-27
• Subjects: Environmental sciences -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8en00930a
• Languages: English
• ISSNs: 2051-8153

Abstract

Abstract : A green approach was successfully developed to prepare CuO nanosheets (NSs) as a recyclable Fenton-like catalyst from simulated Cu(ii ) waste effluents by alkaline H2 O2 reaction. Abstract : The direct discharge of copper containing wastewater into the water body not only causes serious harm to the ecological environment, but also results in copper resource wastage. A green approach was successfully developed to prepare CuO nanosheets (NSs) from simulated Cu(ii ) waste effluents by alkaline H2 O2 reaction. The FTIR, EXAFS and XPS results revealed that peroxide group exists on the surface of the as-prepared CuO nanosheets, and the formation mechanism of copper peroxide has been proposed. Assisted by visible light irradiation, the CuO NS as a recyclable Fenton-like catalyst achieved complete degradation of phenol within 40 min. Moreover, the copper ions leached during the Fenton-like process were recycled via alkaline H2 O2 reaction and their concentration in the solution reduced to below 1 mg L −1, therefore realizing a copper life cycle and Fenton-like degradation of organic pollutants.