Photocatalytic research performance of zinc oxide/graphite phase carbon nitride catalyst and its application in environment

IF 3.8 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Green Processing and Synthesis Pub Date : 2023-01-01 DOI:10.1515/gps-2023-0058

Haiyang Liu, Zhe Wang, Heng Zhang, Lixia Jin, Yuehui Zhao

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引用次数: 0

Abstract

Abstract In this article, ZnO quantum dots (QDs)-g-C3N4 complexes were prepared by a combined sol–gel method and ultrasound-assisted chemical method, and ZnO-g-C3N4 composites with different doping ratios were also prepared for photocatalytic degradation of dye wastewater. The composites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffractometry, Fourier transform infrared, X-ray photoelectron spectroscopy, diffuse reflectance spectroscopy, and photoluminescence. The photocatalytic performance of the best ZnO QDs-g-C3N4 complexes with different g-C3N4 doping amounts was investigated, and the kinetics of their photocatalytic reactions were analyzed, and it was found that the best effect of ZnO-g-C3N4 10% could reach 89.08% and ZnO QDs-g-C3N4 could reach 91.53%. It was also demonstrated that ZnO-g-C3N4 10%, ZnO QDs-g-C3N4 cyclic stability is better, and the reaction mechanism of ZnO QDs-g-C3N4 was investigated. It can be used for the degradation of dyes in environmental wastewater and the removal of harmful substances from the natural environment.

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氧化锌/石墨相氮化碳催化剂的光催化性能及其在环境中的应用研究

摘要本文采用溶胶-凝胶法和超声辅助化学法制备了ZnO量子点-g-C3N4复合物，并制备了不同掺杂率的ZnO-g-C3N4复合材料，用于染料废水的光催化降解。通过扫描电子显微镜、透射电子显微镜、X射线衍射仪、傅立叶变换红外光谱、X射线光电子能谱、漫反射光谱和光致发光对复合材料进行了表征。研究了不同g-C3N4掺杂量的最佳ZnO量子点-g-C3N4配合物的光催化性能，并分析了它们的光催化反应动力学，发现ZnO-g-C3N410%的最佳效果可达89.08%，ZnO量子点-g-C3N491.53%，研究了ZnO量子点-g-C3N4的反应机理。它可用于降解环境废水中的染料和去除自然环境中的有害物质。

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来源期刊

Green Processing and Synthesis CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

6.70

自引率

9.30%

发文量

审稿时长

7 weeks

期刊介绍： Green Processing and Synthesis is a bimonthly, peer-reviewed journal that provides up-to-date research both on fundamental as well as applied aspects of innovative green process development and chemical synthesis, giving an appropriate share to industrial views. The contributions are cutting edge, high-impact, authoritative, and provide both pros and cons of potential technologies. Green Processing and Synthesis provides a platform for scientists and engineers, especially chemists and chemical engineers, but is also open for interdisciplinary research from other areas such as physics, materials science, or catalysis.