一种多酸基纳米复合材料的制备、表征和湿敏性能研究  

Preparation,characterization and humidity sensing properties of a polyoxometalate/g-C_(3)N_(4)nanomaterial

作　　者：妮南 赵海燕 李稼祎 耿钰博 王利 NI Nan;ZHAO Haiyan;LI Jiayi;GENG Yubo;WANG Li(Liaoning key Laboratory of Plasma Technology,School of Physics and Materials Engineering,Dalian Minzu University,Dalian 116600,Liaoning,China)

机构地区：[1]大连民族大学物理与材料工程学院,辽宁省等离子体技术重点实验室,辽宁大连116600

出　　处：《化学研究》2024年第3期213-218,共6页Chemical Research

基　　金：国家自然科学基金(21501021)。

摘　　要：通过静电吸附方法,将结构稳定、性能优良的Anderson型多金属氧酸盐(POMs)负载在g-C_(3)N_(4)表面,调节Na[6 TeMo_(6)O_(24)]·4H_(2)O(简写为TeMo_(6))比例制备得到系列TeMo6/g-C_(3)N_(4)纳米材料,通过扫描电镜、傅立叶红外光谱、X射线粉末衍射等手段对纳米片结构及形貌进行基本表征,简单滴涂制备得到湿度传感器,重点对传感器湿敏性能进行系统测试。结果表明,4%TeMo_(6)/g-C_(3)N_(4)湿度纳米传感器对高湿度环境响应迅速,其在75%~95%湿度环境下响应和恢复时间均在2 s左右,该类材料在湿度传感领域具有潜在的应用价值。By using electrostatic adsorption method,a series of polyoxometalate/g-C_(3)N_(4)nanomaterials with the different proportions were fabricated by loading Anderson-type polyoxometalate Na6[TeMo_(6)O_(24)]·4H_(2)O(for short TeMo_(6))on the surface of g-C_(3)N_(4),and they were analyzed by means of scanning electron microscopy,Fourier infrared spectroscopy,X-ray powder diffraction,and so on.Then,by simple drop coating method,their humidity sensing properties were tested and studied in detail.The comparison results show that 4%TeMo_(6)/g-C_(3)N_(4)humidity nano-sensor can respond quickly to high humidity environment.The response time and recovery time of 4%TeMo_(6)/g-C_(3)N_(4)humidity nanosensor are around 2 s at 75%-95%relative humidity(RH),which provides a promising method to develop polyoxometalate-derived high-performance humidity sensors.

关 键 词：Anderson型多酸 纳米材料 湿度传感 石墨相氮化碳 

分 类 号：O614[理学—无机化学]