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Ce3+/Ce4+-Doped ZrO2/CuO Nanocomposite for Enhanced Photocatalytic Degradation of Methylene Blue under Visible Light

Authors :
Manh Nhuong Chu
Lan T. H. Nguyen
Mai Xuan Truong
Tra Huong Do
Thi Tu Anh Duong
Loan T. T. Nguyen
Mai An Pham
Thi Kim Ngan Tran
Thi Cam Quyen Ngo
Van Huan Pham
Source :
Toxics; Volume 10; Issue 8; Pages: 463
Publication Year :
2022
Publisher :
Multidisciplinary Digital Publishing Institute, 2022.

Abstract

In recent years, photocatalysis has been used as an environmentally friendly method for the degradation of organic pigments in water. In this study, Ce3+/Ce4+-doped ZrO2/CuO as a mixed semiconductor oxide was successfully prepared by a one-step hydrothermal method. The Ce3+/Ce4+-doped ZrO2/CuO has shown high degradation efficiency of methylene blue (MB), and the maximum degradation percentage was observed to be 94.5% at 180 min under irradiation visible light. The photocatalytic activity increases significantly by doping Ce3+/Ce4+ in ZrO2/CuO for MB degradation. Ce3+/Ce4+ doping is shown to reduce the (e-/h+) recombination rate and improve the charge transfer, leading to enhanced photocatalytic activity of materials. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), FTIR, EDS, BET and diffuse reflectance spectroscopy (DRS).

Details

Language :
English
ISSN :
23056304
Database :
OpenAIRE
Journal :
Toxics; Volume 10; Issue 8; Pages: 463
Accession number :
edsair.doi.dedup.....c56fc4774934ecdc63775309ce67cc25
Full Text :
https://doi.org/10.3390/toxics10080463