PI-rGO/SnO_(2)氨气传感器的制备  

Prepration of PI-rGO/SnO_(2)Ammonia Sensor

作　　者：张媛媛 柯福佑[1] 王想军 陈烨[1] 王华平[1] ZHANG Yuan-yuan;KE Fu-you;WANG Xiang-jun;CHEN Ye;WANG Hua-ping(State Key Laboratory of Fiber Modification,Donghua University,Shanghai 201620,China)

机构地区：[1]纤维材料改性国家重点实验室东华大学材料科学与工程学院,上海201620

出　　处：《合成纤维》2022年第8期21-26,37,共7页Synthetic Fiber in China

基　　金：浙江省创新团队项目(2019R01011);中央高校基本科研业务费专项资金资助(2232021G-02)。

摘　　要：以聚酰亚胺(PI)织物为柔性基底,采用静电层层自组装的方法,在Sn溶液和氧化石墨烯(GO)分散液中,经原位水热法制备还原氧化石墨烯(rGO)/二氧化锡(SnO_(2))复合涂层织物(PI-rGO/SnO_(2))。采用红外光谱、拉曼光谱、X射线光电子能谱、扫描电镜、透射电镜等方法对PI-rGO/SnO_(2)的结构形貌进行表征,并测试了PI-rGO/SnO_(2)传感器的室温氨气传感性能。结果表明,SnO_(2)纳米粒子对rGO进行了成功掺杂。PI-rGO/SnO_(2)传感器对氨气表现出p型传感,在NH体积分数1×10^(-4)~6×10^(-4)范围内表现出良好的线性响应(R^(2)=0.97)。此外,传感器对氨气表现出优异的选择性。Reduced graphene oxide(rGO)/tin dioxide(SnO_(2))composite coated fabrics(PI-rGO/SnO_(2))were prepared via in situ hydrothermal method in Snsolution and graphene oxide(GO)dispersion liquid using polyimide(PI)fabric as flexible substrate by electrostatic layer-by-layer self-assembly.The structure and morphology of the PI-rGO/SnO_(2)were characterised by infrared spectroscopy,Raman spectroscopy,X-ray photoelectron spectroscopy,scanning electron microscopy and transmission electron microscopy,and the ammonia sensing performance of the PI-rGO/SnO_(2)sensor at room temperature was tested.The results show that SnO_(2)nanoparticles are successfully doped with rGO.The PI-rGO/SnO_(2)sensor exhibits p-type sensing for ammonia gas,and shows a good linear response(R^(2)=0.97)in the range of ammonia gas volume fraction1×10^(-4)~6×10^(-4).In addition,the sensor shows excellent selectivity for ammonia gas.

关 键 词：还原氧化石墨烯 二氧化锡 聚酰亚胺织物 原位水热法 室温氨气传感器 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ342.731[化学工程—化纤工业]