光气
氯化亚砜
草酰氯
氯化物
荧光
化学
胺气处理
溴化物
检出限
光化学
有机化学
核化学
无机化学
色谱法
量子力学
物理
作者
Han Qin,Qingqing Wang,Aiping Gao,Xue-Ping Chang,Lintao Zeng,Xinhua Cao
标识
DOI:10.1021/acssuschemeng.2c05217
摘要
A self-assembly fluorescent gelator (DIAN) based on a 3,4-diamine-naphthalimide derivative was constructed for sensing of multiple hazardous substances. The gelator DIAN self-assembled into organogels to form tightly packed nanofiber morphologies with hydrophobicity (water contact angles in the range of 130–146°). DIAN responded to phosgene in a ratiometric mode, while it responded to thionyl chloride (SOCl2) and oxalyl chloride ((COCl)2) under the fluorescent “turn-off” mode. Results obtained from NMR and HRMS experiments demonstrated the sensing mechanism, and it was observed that phosgene, SOCl2, and (COCl)2 initially reacted with two amine groups of naphthalimide. The corresponding cyclization products were formed, and this induced the changes in fluorescence emission. Low limit of detection (LOD) values for phosgene, SOCl2, and (COCl)2 were recorded for DIAN in solution (LOD = 4.21, 1.98, and 1.29 nM) and xerogel films (LOD = 105, 69.1, and 33.3 ppb). The results reported herein can help provide a new platform for monitoring toxic phosgene, thionyl chloride, and oxalyl chloride.
科研通智能强力驱动
Strongly Powered by AbleSci AI