Breakthrough progress has been made in the researc

Breakthrough progress has been made in the research of optical MOF film materials

recently, the research team led by Zhang Jian, a researcher at the State Key Laboratory of structural chemistry, Fujian Institute of material structure, Chinese Academy of Sciences, successfully synthesized optical MOF film materials loaded with ultra-small carbon nano lattice

the efficient and economical preparation of functional composite films is one of the difficulties in the research and development of film materials, especially the preparation and application of optical functional composite films need to be vigorously developed

carbon nanodots (CDS) have broad application prospects in catalysis, fluorescence, sensing and biological imaging due to their high chemical stability, low toxicity, good biocompatibility and excellent photophysical properties. The research team creatively utilized the significant difference between MOF materials and glucose molecules in carbonization temperature to realize the composite of carbon nanodots and MOF materials. The carbonization temperature of general MOF materials at present, the hydraulic universal testing machine produced by StarTech mainly includes: digital display hydraulic universal testing machine, screen display hydraulic universal testing machine, microcomputer controlled electro-hydraulic servo hydraulic universal testing machine. The degree of carbonization needs to exceed 500 degrees Celsius, while the carbonization temperature of glucose molecules is about 200 degrees Celsius. Therefore, the MOF material loaded with glucose molecules keeps the skeleton structure unchanged at 200 ℃, but glucose is limited by the carbonization behavior to the carbon nanodots in the MOF pores, so as to obtain uniform dispersion CDs@MOF Composite materials

the size of carbon nanodots can be adjusted by selecting MOFs with different pore structures. The prepared carbon nanodot supported MOF films not only have good morphology and optical transparency, but also exhibit wavelength tunable photoluminescence effect and optical limiting effect. This research work realizes the controllable synthesis of ultra-small carbon nano lattice in MOF template, and develops new CDs@MOF Composite optical limiting materials, published in German Applied Chemistry (angew. chem. int. ed. 2017, doi: 10.1002/anie.)

in the same period, the research team prepared porphyrin based piza-1 film materials that can effectively and selectively detect volatile organic compounds (small, 2017, 1,), and explored the effects of growth orientation, thickness, modified substrate and other factors of MOF films on the properties of MOF films, A series of thin film materials with chiral resolution and catalytic functions have been developed (chem. common., 2017, 53, 1470; ACS appl. mater. interfaces, 2017, 9, 7259; inorg. chem., 2017, 56, 3526; nanoscale 2017, doi:10.1039/c7nr02284k)

this research was supported by the strategic leading science and technology project of the Chinese Academy of Sciences (category B), the innovative group of "inorganic organic hybrid functional materials" of the national foundation of science, the national fund for Distinguished Young Scholars, the youth project of the National Natural Science Foundation of China, the general project of the Fujian Provincial Natural Science Foundation, and the outstanding youth project of the National Key Laboratory of structural chemistry