光催化
材料科学
异质结
硝基苯
苯胺
X射线光电子能谱
三元运算
拉曼光谱
可见光谱
化学工程
纳米颗粒
纳米复合材料
核化学
纳米技术
催化作用
有机化学
光电子学
化学
光学
物理
工程类
程序设计语言
计算机科学
作者
Tehmina Akhtar,Habib Nasir,Effat Sitara,Syeda Aqsa Batool Bukhari,Johannes W. Schwank
标识
DOI:10.1016/j.surfin.2023.102997
摘要
Photocatalytic reduction of nitroaromatic compounds to aniline is a promising and green technique. Herein, a novel and highly efficient Ag-ZrO2/g–C3N4 ternary heterojunction has been synthesized by decorating Ag nanoparticles (NPs) on ZrO2/g–C3N4 via ultrasonication method. The prepared heterostructures were characterized by XRD, UV–vis DRS, BET, STEM, EDX, XPS, Raman, and PL spectroscopic techniques. The photocatalytic efficiency of Ag-ZrO2/g–C3N4 was evaluated by the reduction of nitrobenzene (NB) to aniline (AN) under visible light without reducing agent. The structure and photocatalytic performance of Ag-ZrO2/g–C3N4 was compared with Ag-ZrO2, ZrO2, and g–C3N4. Among the as-prepared photocatalysts, Ag-ZrO2/g–C3N4 has demonstrated the highest photocatalytic efficiency, with 100% reduction of NB to AN in 8 min under visible light. The excellent photocatalytic reduction efficiency of Ag-ZrO2/g–C3N4 can be ascribed to the formation of a good interface between Ag, ZrO2 and g-C3N4. The as-prepared Ag-ZrO2/g–C3N4 exhibited good stability during numerous reaction cycles. As a result, the photocatalyst presents a reliable and efficient solution for reducing nitroaromatic compounds, which can be highly useful in industry and contribute to creating a healthier and more environmentally friendly atmosphere.
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