铈/铈掺杂的氧化锆/氧化铜纳米复合材料用于在可见光下增强亚甲基蓝的光催化降解

Ce/Ce-Doped ZrO/CuO Nanocomposite for Enhanced Photocatalytic Degradation of Methylene Blue under Visible Light.

作者信息

Chu Manh Nhuong, Nguyen Lan T H, Truong Mai Xuan, Do Tra Huong, Duong Thi Tu Anh, Nguyen Loan T T, Pham Mai An, Tran Thi Kim Ngan, Ngo Thi Cam Quyen, Pham Van Huan

机构信息

Faculty of Chemistry, Thai Nguyen University of Education, Thai Nguyen City 24000, Vietnam.

Faculty of Physics, Thai Nguyen University of Education, Thai Nguyen City 24000, Vietnam.

出版信息

Toxics. 2022 Aug 10;10(8):463. doi: 10.3390/toxics10080463.

DOI:10.3390/toxics10080463

PMID:36006142

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9412757/

Abstract

In recent years, photocatalysis has been used as an environmentally friendly method for the degradation of organic pigments in water. In this study, Ce/Ce-doped ZrO/CuO as a mixed semiconductor oxide was successfully prepared by a one-step hydrothermal method. The Ce/Ce-doped ZrO/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 Ce/Ce in ZrO/CuO for MB degradation. Ce/Ce 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).

摘要

近年来，光催化已被用作一种环境友好型方法来降解水中的有机颜料。在本研究中，通过一步水热法成功制备了Ce/Ce掺杂的ZrO/CuO混合半导体氧化物。Ce/Ce掺杂的ZrO/CuO对亚甲基蓝（MB）显示出高降解效率，在可见光照射下180分钟时观察到最大降解率为94.5%。通过在ZrO/CuO中掺杂Ce/Ce用于MB降解，光催化活性显著提高。结果表明，Ce/Ce掺杂降低了（e/h）复合率并改善了电荷转移，从而提高了材料的光催化活性。通过X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、傅里叶变换红外光谱（FTIR）、能谱仪（EDS）、比表面积分析仪（BET）和漫反射光谱（DRS）对材料进行了表征。