Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 13, Issue 6, Pages 7434-7442Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c20292
Keywords
cucurbit[10]uril; porous supramolecular assembly; detection; adsorption; fluorescent material; pyridine
Funding
- National Natural Science Foundation of China [21861011, 21871064]
- Innovation Program for High-level Talents of Guizhou Province [2016-5657]
- Major Program for Creative Research Groups of Guizhou Provincial Education Department [2017-028]
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A physical impregnation method is introduced to encapsulate pyridine molecules into a nanospace formed by GMs and Q[10]-SOF, maintaining crystal framework and stability. The solid GMs@Q[10]-SOF materials respond to pyridine, making them suitable for solid sensors. The study represents a critical advancement in pyridine detection and adsorption for gas identification and sensing.
A physical impregnation method is presented in this study, providing a facile approach to encapsulating functional guest molecules (GMs) into robust crystalline supramolecular organic frameworks incorporating cucurbit[10]uril (Q[10]-SOF). As Q[10]-SOF has high evaporated pyridine affinity under normal atmospheric pressure, pyridine molecules in this method were successfully encapsulated into the nanospace formed by GMs and Q[10]-SOF while retaining their crystal framework, morphology, and high stability. GMs@Q[10]-SOF solid materials were found to respond to pyridine, being suitable to be used as solid sensors. Notably, Q[10]-SOF loading with pyrene exhibited a unique response to pyridine along with dramatic fluorescence quenching; loading with dansyl chloride exhibited a unique response to pyridine along with significant fluorescence enhancement, having a quick response within 60 s. Our findings represent a critical advancement in the design of pyridine detection and adsorption for commercial gas identification and sensing.
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