基于MOF衍生的In掺杂ZnO纳米材料对NO_(2)的气敏性能  

Gas sensitivity performance of In-doped ZnO nanomaterials derived from MOF towards NO_(2)

作　　者：王思博 赵振龙 贾丽华[1] WANG Sibo;ZHAO Zhenlong;JIA Lihua(School of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔市161006

出　　处：《高师理科学刊》2024年第8期61-64,共4页Journal of Science of Teachers＇College and University

基　　金：黑龙江省属本科高校基本科研业务费面上项目(145109102)。

摘　　要：以硝酸锌和二甲基咪唑为原料,采用溶剂热法制备了ZIF-8,通过掺杂不同含量的In^(3+)离子,制备了基于MOF衍生的In^(3+)掺杂Zn O复合纳米材料.采用X射线衍射(XRD)、X射线光电子能谱测试(XPS)、氮气吸附-脱附等方法对合成材料进行了结构表征.研究了In^(3+)离子掺杂对材料的结构形貌和性能的影响.掺杂In^(3+)的ZnO纳米复合材料对二氧化氮气敏性能明显提高,160℃工作温度下,对1 mg/L的二氧化氮的响应值从75提高到350,最低检测线为1μg/L.所给的纳米材料制备方法简单,气敏性能优异,为NO_(2)气体的高灵敏检测提供了潜在方法.Zinc nitrate and dimethyl imidazole were used as raw materials to prepare ZIF-8 by the solvothermal method.In-doped ZnO nanomaterials derived from MOF were synthesized by doping In^(3+)ions.The synthesized samples were characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),nitrogen adsorption-desorption,etc.The influence of In^(3+)ion doping on the structure,morphology,and properties of materials has been studied.The sensor based on the ZnO nanocomposite doped In^(3+)shows significantly improved sensitivity to NO_(2),with the response value increasing from 75 to 350 for 1 mg/L of NO_(2)at an operating temperature of 160℃,and the lowest detection limit is 1μg/L.The preparation method of nanomaterials is simple and has excellent gas sensitive properties,which provides an potential way for highly sensitive detection of NO_(2)gas.

关 键 词：金属有机框架 ZNO 传感器 气敏 NO_(2) 

分 类 号：O69[理学—化学]