Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 617, Issue -, Pages 118-128Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2022.02.133
Keywords
Host-guest interactions; Light-harvesting; Energy transfer; Photocatalysis
Categories
Funding
- National Natural Science Foundation of China [22005179]
- Natural Science Foundation of Shandong Province [ZR2020MB018, ZR2020QB113]
- Natural Science Foundation of Zhejiang Province [LQ20E30016]
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In this study, three artificial light-harvesting systems were constructed using a supramolecular approach in an aqueous environment. These systems have the capability to transfer energy to target molecules and can enable efficient organic photocatalytic synthesis reactions in a water medium.
In this work, three artificial light-harvesting systems are constructed by a supramolecular approach in aqueous environment. The water-soluble bipyridinium derivatives (DPY1, DPY2, and DPY3) were selfassembled with cucurbit[7]uril (CB[7]) to form the host-guest DPY-CB[7] complexes, which can highly disperse in water as small nanoparticles. The excited DPY-CB[7] assemblies can transfer energy to the sulfo-rhodamine 101 (SR101) molecules at a high donor/acceptor ratio. With the help of hydrophobic cavity of CB[7], the DPY-CB[7] + SR101 systems can works as a nanoreactor for effective dehalogenation of a-bromoacetophenone and its derivatives in aqueous medium under white light irradiation. Such light-harvesting systems has greatly potential applications to realize some organic photocatalytic synthesis in aqueous environment. (C) 2022 Elsevier Inc. All rights reserved.
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