湖北民族大学学报（自然科学版）2025，Vol.43Issue(1)：18-24,40,8.DOI:10.13501/j.cnki.42-1908/n.2025.03.014
基于TiO2/SnS2异质结复合纳米纤维的室温NO2气体传感器研究
Investigation of TiO2/SnS2 Heterojunction Composite Nanofibers for Room Temperature NO2 Gas Sensor
摘要
Abstract
In order to fully utilize the air permeability and high specific surface area of the nanofiber material,as well as the efficient interfacial electron transfer characteristics of the heterojunctions,so as to achieve effective detection of NO2 at room temperature,a composite nanofiber material composed of SnS2 nanosheets anchored by TiO2 nanofibers was innovatively prepared by electrospinning technology and hydrothermal method.The material was characterized by means of X-ray diffractometer,scanning electron microscopy,transmission electron microscopy,Fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,and its gas sensing properties were investigated in detail.The results showed that the TiO2/SnS2 gas sensor exhibited a high response value of 79.1%to 10 mL/m3 NO2 gas at room temperature,with the response/recovery time being 120s/350s.In addition,the sensor exhibited excellent selectivity,highlighting its potential application in NO2 gas detection.This study provided an innovative strategy for the development of composite nanofiber materials with anchored heterojunctions,which could overcome the inherent limitations of traditional thin-film gas sensors and opened up a new path for the design of electronic devices for applications in complex and harsh environments.关键词
纳米纤维/SnS2/异质结/室温/气体传感器/高响应/快速响应/恢复Key words
nanofibers/SnS2/heterojunction/room temperature/gas sensor/high response/fast response/recovery引用本文复制引用
杨妍,王艳..基于TiO2/SnS2异质结复合纳米纤维的室温NO2气体传感器研究[J].湖北民族大学学报（自然科学版）,2025,43(1):18-24,40,8.基金项目
国家自然科学基金项目(21963008) （21963008）
恩施州科技局青年人才项目(D20220014) （D20220014）
湖北民族大学研究生科研创新项目(MYK2024013). （MYK2024013）
