PMID- 28530759 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20180220 LR - 20180220 IS - 1477-9234 (Electronic) IS - 1477-9226 (Linking) VI - 46 IP - 21 DP - 2017 May 30 TI - A dual-emission probe to detect moisture and water in organic solvents based on green-Tb(3+) post-coordinated metal-organic frameworks with red carbon dots. PG - 7098-7105 LID - 10.1039/c7dt01352c [doi] AB - Using p-phenylenediamine as a precursor, p-carbon dots (p-CDs) with strong red-light emission were encapsulated into a metal-organic framework (MOF) followed by introduction of green light-emitting Tb(3+) to form a two-color light-emitting hybrid (Tb(3+)@p-CDs/MOF). The as-prepared fluorescent-functionalized MOF not only maintained the excellent optical properties of p-CDs and Tb(3+) to give strong emission, but also had good chemical and physical properties. The chosen p-CDs were aggregated readily in water, which led to only very weak photoluminescence, whereas the opposite effect was noted in the organic solvents ethanol, dimethylformamide and cyclopropane. Therefore, the as-prepared hybrid showed different color light emission in water or organic solvents, and acted as a ratiometric and colorimetric fluorescent probe to detect water content in organic solvents. Moreover, this hybrid also served as a ratiometric luminescent sensor for detection of relative humidity (RH): the ratio of light intensity at 545 nm to that at 605 nm increased linearly with increasing RH from 33.0% to 85.1% in the atmosphere. FAU - Wu, Jing-Xing AU - Wu JX AD - China-Australia Joint Laboratory for Functional Molecules and Ordered Matters, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China. byan@tongji.edu.cn. FAU - Yan, Bing AU - Yan B LA - eng PT - Journal Article PL - England TA - Dalton Trans JT - Dalton transactions (Cambridge, England : 2003) JID - 101176026 EDAT- 2017/05/23 06:00 MHDA- 2017/05/23 06:01 CRDT- 2017/05/23 06:00 PHST- 2017/05/23 06:00 [pubmed] PHST- 2017/05/23 06:01 [medline] PHST- 2017/05/23 06:00 [entrez] AID - 10.1039/c7dt01352c [doi] PST - ppublish SO - Dalton Trans. 2017 May 30;46(21):7098-7105. doi: 10.1039/c7dt01352c.