摘要
采用溶胶-凝胶法制备了SnO_(2)纳米颗粒,并用X射线衍射仪(XRD)和扫描电镜(SEM)对制备的材料进行结构及形貌表征,测试了纳米颗粒对甲醛的敏感特性,讨论了锡盐与柠檬酸用量对SnO_(2)纳米颗粒尺寸和气敏性能的影响。结果表明:当锡盐与柠檬酸的用量配比(摩尔比)为1∶2.5时,可以制备分散度良好并且具有最佳气敏性能的纳米颗粒结构,展现了SnO_(2)纳米颗粒在甲醛气体检测方面的良好应用前景。
SnO_(2) nanoparticles were prepared by sol-gel method and characterized by XRD and SEM.The sensitivity of nanoparticles to formaldehyde was tested,and the effects of the mole ratio of tin salt to citric acid on the size and gas sensitivity of SnO_(2) nanoparticles were discussed.The results showed that when the mole ratio of tin salt to citric acid was 1∶2.5,the nanoparticle structure had good dispersion.Moreover,the formaldehyde sensing properties were investigated.The results showed that SnO_(2) nanoparticles had the characteristics of rapid response and high sensitivity to formaldehyde,showing good application prospect of SnO_(2) in formaldehyde gas detection.
作者
邹欣明
栾坤喜
邢雨婷
康嘉琪
谢宗昇
孟丹
ZOU Xinming;LUAN Kunxi;XING Yuting;KANG Jiaqi;XIE Zongsheng;MENG Dan(College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China)
出处
《辽宁化工》
CAS
2024年第5期682-685,共4页
Liaoning Chemical Industry
关键词
SnO_(2)
纳米颗粒
气敏特性
甲醛
SnO_(2)
Nanoparticles
Gas-sensitive characteristics
Formaldehyde
