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Designed Synthesis of Multiluminescent Materials Using Lanthanide Metal‐Organic Frameworks and Carbon Dots as Building‐Blocks
Author(s) -
Gao Yuan,
Hilbers Michiel,
Zhang Hong,
Tanase Stefania
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900876
Subject(s) - chemistry , lanthanide , metal organic framework , quenching (fluorescence) , acetonitrile , molecule , carbon fibers , methanol , hybrid material , composite number , metal ions in aqueous solution , block (permutation group theory) , chemical engineering , ion , inorganic chemistry , nanotechnology , photochemistry , fluorescence , organic chemistry , adsorption , composite material , materials science , quantum mechanics , engineering , physics , geometry , mathematics
A multiluminescent composite material, CDs@EuW–MOF, is synthesized by self‐assembling molecular building‐blocks in the presence of carbon dots (CDs). Using water soluble CDs within the growth media of a hydrophilic metal‐organic framework (MOF) enables the incorporation of the CDs within MOF pores through a one‐pot synthesis. The emission spectra obtained using a broad range of excitation wavelengths (295–400 nm) show multiple emissions including the Eu 3+ red emission and the dual‐color (blue and green) emissions of the CDs. The red emission intensity of Eu 3+ ions decreases in the presence of water molecules, leading to the ratiometric detection of water in methanol within a wide response range of 0–30 % (V/V). Due to the quenching effect on the CDs emission, this composite can also sense acetonitrile. The results demonstrate that using a molecular building‐block approach is an efficient route towards the design of multiluminescent functional materials.