期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 3, 页码 2868-2873出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b17793
关键词
CO2 fluorescence quantification; metal-organic frameworks; aggregation-induced emission; aggregation-caused quenching; visible turn-on sensor; J aggregates
资金
- National Natural Science Foundation of China [21401160, 21775136, 21771158, 21301149, 21276220]
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [17KJB150039]
- 863 Program of China [2015AA021003]
- Jiangsu Collaborative Innovation Center for Ecological Building Materials and Environmental Protection Equipments [GX2015104, CP201502]
- Yancheng Institute of Technology [KJC2013001, KJC2014034]
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province [AE201310, AE201312]
Traditional CO2 sensing technologies suffer from the disadvantages of being bulky and cross-sensitive to interferences such as CO and H2O, these issues could be properly tackled by innovating a novel fluorescence-based sensing technology. Metal organic frameworks (MOFs), which have been widely explored as versatile fluorescence sensors, are still at a standstill for aggregation-induced emission (AIE), and no example of MOFs showing a dynamic AIR activity has been reported yet. Herein, we report a novel MOF, which successfully converts the aggregation-caused quenching of the autologous ligand molecule to be AM-active upon framework construction and exhibits bright fluorescence in a highly viscous environment, resulting in the first example of MOFs exhibiting a real dynamic AIE activity. Furthermore, a linear CO2 fluorescence quantification for mixed gases in the concentration range of 2.5-100% was thus well-established. These results herald the understanding and advent of a new generation in all solid-state fluorescence fields.
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