广州化学2025，Vol.50Issue(5)：45-49,5.DOI:10.16560/j.cnki.gzhx.20250511
采用Sn-MOF构建对甲醛具有良好选择性的微纳形貌特征的SnO2
Sn-MOF-derived SnO2 Micro-nano Structures for High-selectivity Formaldehyde Detection
摘要
Abstract
SnO2 is recognized as a broad-spectrum gas-sensitive response material.Its formaldehyde responsiveness can be attained via structural reconstruction,yet it presents clear limitations in selectivity,sensitivity,adaptability,and reliability that necessitate ongoing enhancement.In this study,a synthesized tin metal-organic framework compound(Sn-MOF)was employed to produce SnO2 powder(CM-SnO2)demonstrating superior formaldehyde selective response characteristics.The findings reveal that the CM-SnO2 powder exhibits a surface with micro and nano scale morphological features,offering an increased number of binding sites for formaldehyde molecules and thus significantly enhancing its selectivity for formaldehyde.The response value to 50ppm formaldehyde at 70℃is 35.8.At a concentration of 10 ppm,the responsiveness to formaldehyde is 5.46 times greater than that of the secondary-ranked triethylamine,and the selectivity coefficient for formaldehyde reaches 0.69,indicating exceptional selectivity for formaldehyde.These conclusions provide a viable technical foundation for the development of high-performance formaldehyde selective response materials and devices.关键词
Sn-MOF/烧蚀/CM-SnO2/微纳结构形貌/甲醛选择系数Key words
Sn-MOF/ablation/CM-SnO2/micro-nanostructure morphology/formaldehyde selectivity coefficient分类
化学化工引用本文复制引用
胡悦,龚云鹏,曹立久,马旭,桑柳波,唐毅,陈玉放..采用Sn-MOF构建对甲醛具有良好选择性的微纳形貌特征的SnO2[J].广州化学,2025,50(5):45-49,5.基金项目
重庆自然科学基金(CSTB2022NSCQ-MSX0986) （CSTB2022NSCQ-MSX0986）
