ZIF-8衍生ZnO材料的合成及其乙醇气敏性能研究  

Synthesis and Ethanol Gas Sensing Performance of ZIF-8 Derived ZnOMaterials

作　　者：付宇康 胡谨译 熊礼威[1] FU Yukang;HU Jinyi;XIONG Liwei(Hubei Key Laboratory of Plasma Chemical and Advanced Materials,School of Material Science and Engineering,Wuhan Institute of Technology,Wuhan Hubei 430205,China)

机构地区：[1]武汉工程大学湖北省等离子体化学与新材料重点实验室材料科学与工程学院,湖北武汉430205

出　　处：《辽宁化工》2025年第2期200-204,共5页Liaoning Chemical Industry

基　　金：武汉工程大学研究生创新基金项目(项目编号:CX2022253)。

摘　　要：采用一种简单的化学沉淀法,在室温下制备出以锌为节点的菱形十二面体金属有机框架ZIF-8,随后通过将产物在不同温度下进行高温热处理,得到MOF衍生Zn O。通过对其成分和形貌结构进行分析表征,研究不同温度热处理下的Zn O纳米材料的气敏性能变化。测试结果表明:在体积分数1.0×10^(-4)的乙醇气氛下,400℃热处理后的Zn O纳米材料相较于450℃和500℃煅烧后的材料,其对乙醇有着更高的响应度。同时,在180℃的最佳工作温度下,拥有优秀的气体选择性和响应恢复能力。最后,对Zn O气体传感器的传感机制进行了简单分析。The rhombohedral dodecahedral metal-organic framework ZIF-8 with zinc as node was prepared by a simple chemical precipitation method at room temperature.MOF-derived ZnO was obtained by heat treatment of the product at different temperatures.The gas-sensitive properties of ZnO nanomaterials under different heat treatment were studied by analyzing their composition and morphology.The results showed that ZnO nanomaterials treated at 400℃in volume fraction 1.0×10^(-4)ethanol atmosphere had higher response to ethanol than those calcined at 450℃and 500℃.At the same time,it had excellent gas selectivity and response recovery ability at the optimal operating temperature of 180℃.Finally,the sensing mechanism of ZnO gas sensor was simply analyzed.

关 键 词：金属有机框架衍生物 气体传感器 ZNO 乙醇 

分 类 号：TQ132.41[化学工程—无机化工]