仙人掌状SnO_(2)/ZnO纳米复合材料的制备及其对NO_(2)的高灵敏快速检测  

Synthesis of Cactus Lke SnO_(2)/ZnO Nanocrystals and Its Highly Sensitive and Rapid Detection of NO_(2)

作　　者：南宁 王宇鹤[2] 于灵敏 李春[2,3] 刘晓芬 NAN Ning;WANG Yuhe;YU Lingmin;LI Chun;LIU Xiaofen(School of Materials and Chemical Engineering,Xi’an Technological University,Xi’an 710021,China;College of Chemical Engineering and Modern Materials,ShangLuo University,Shangluo 72600,China;Research Centre of Grapheme Technology and Application,ShangLuo University,Shangluo 72600,China)

机构地区：[1]西安工业大学材料与化工学院,西安710021 [2]商洛学院化学工程与现代材料学院,商洛726000 [3]商洛学院商洛市石墨烯技术与应用研究中心,商洛726000

出　　处：《西安工业大学学报》2025年第1期19-26,共8页Journal of Xi’an Technological University

基　　金：陕西省重点研发计划项目(2024GX-YBXM-321);商洛市工程中心平台项目(24KYZX02);商洛学院科研计划资助项目(20FK004);省级大学生创新创业训练计划项目(S202311396079)。

摘　　要：为了解决纯SnO_(2)基气体传感器对NO_(2)灵敏度低、响应时间长的难题,本文采用水热法制备仙人掌状SnO_(2)/ZnO纳米复合材料,研究了不同配比对SnO_(2)/ZnO复合材料结构形貌与气敏性能的影响。研究结果表明:在水热反应温度180℃、时间6 h,煅烧温度500℃,时间3 h的条件下,SnO_(2)/ZnO配比为35∶1时制得仙人掌状SnO_(2)/ZnO纳米复合材料。NO_(2)气敏特性结果显示,在工作温度300℃条件下,其对10 ppm NO_(2)的响应值可达587.503,响应和恢复时间分别为5 s和39 s,较纯SnO_(2)响应值提升了3.2倍,响应时间缩短了32 s。Pure SnO_(2) based gas sensors are low in sensitivity to NO_(2) and long in response time.In this study,the hydrothermal method was used to synthesize cactus like SnO_(2)/ZnO nanocomposites,the impacts of different ratios on their morphological structure and gas sensing performance were investigated.The results show that the cactus like SnO_(2)/ZnO nanocomposite was obtained under the conditions of the water thermal reaction temperature of 180℃ for 6 hours,the calcination temperature of 500℃ for 3 hours,and the SnO_(2)/ZnO ratio of 35:1.The NO_(2) gas sensing characteristics demonstrate that,at the operating temperature of 300℃,its response value to 10 ppm NO_(2) is 587.503 and its response time is 5 s and recovery time 39 s.Compared to pure SnO_(2),its response value increases by a factor of 3.2 and its response time reduces by 32 s.

关 键 词：SnO_(2)/ZnO复合材料 气敏传感器 NO_(2) SnO_(2)纳米花 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] X831[自动化与计算机技术—控制科学与工程]