NiO功能化修饰ZnO纳米花对二甲苯的选择性检测

Selective Detection of Xylene by NiO Functionalized ZnO Nanoflowers

郑妍 宫红 王锐

Yan Zheng Hong Gong Rui Wang

辽宁石油化工大学 石油化工学院，辽宁 抚顺 113001

School of Petrochemical Engineering，Liaoning Petrochemical University，Fushun Liaoning 113001，China

制备了一种负载NiO纳米粒子的ZnO纳米花杂化材料，并对其进行了XRD分析、形貌分析及气体传感性能测试。结果表明，表面负载的NiO纳米粒子调节了ZnO纳米花的导电通道；与纯ZnO材料相比，NiO负载量优化后的异质结气敏材料对二甲苯的响应值提高了3.3倍；传感器的选择性得到提高，响应时间缩短。从更广泛的角度提出了通过引入表面异质结构进行功能化修饰高性能半导体金属氧化物气体传感器的方法。

A ZnO nanoflower hybrid material loaded with NiO nanoparticles was presented,and then it was investigated in XRD, morphology and gas sensing properties.The results show that surface loaded NiO nanoparticles modulated the electric channel of ZnO nanoflowers.The response value of heterojunction gas sensing material with optimized NiO loading amount to xylene is increased by 3.3 times compared with that of pristine ZnO.In addition,the selectivity of the sensor is enhanced and response time decreases.From a broader perspective,the methods for functionalized gas sensors of high?performance semiconductor metal oxide (SMOX) are proposed by introducing surface heterostructure.

国家自然科学基金资助项目(61971405);辽宁省自然科学基金资助项目(20180550246);辽宁省自然基金指导计划项目(2019?ZD?0053)

10.3969/j.issn.1006-396X.2022.03.007