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

被引：6

作者：

Chu, Manh Nhuong ^{[1
]}

Nguyen, Lan T. H. ^{[1
]}

Truong, Mai Xuan ^{[1
]}

Do, Tra Huong ^{[1
]}

Duong, Thi Tu Anh ^{[1
]}

Nguyen, Loan T. T. ^{[1
]}

Pham, Mai An ^{[2
]}

Tran, Thi Kim Ngan ^{[3
]}

Ngo, Thi Cam Quyen ^{[3
]}

Pham, Van Huan ^{[4
]}

机构：

[1] Thai Nguyen Univ Educ, Fac Chem, Thai Nguyen City 24000, Vietnam

[2] Thai Nguyen Univ Educ, Fac Phys, Thai Nguyen City 24000, Vietnam

[3] Nguyen Tat Thanh Univ, Inst Appl Technol & Sustainable Dev, Ho Chi Minh City 700000, Vietnam

[4] Hanoi Univ Sci & Technol, Adv Inst Sci & Technol, Hanoi 100000, Vietnam

来源：

TOXICS | 2022年 / 10卷 / 08期

基金：

英国科研创新办公室;

关键词：

Ce3+/Ce4+; mixed semiconductor oxide; hydrothermal; photocatalysis; methylene blue; CATALYST;

D O I：

10.3390/toxics10080463

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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).

引用

页数：14

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