Different mole percentage of 2-methylimidazole and 2-imidazolecarboxaldehyde were mixed together to form ZIF-8-90 X%. We found that DMF had good effect on controlling the particle size but reducing the productivity ratio. The ZIF-8-90 X% NPs had different physical properties, such as surface ...
The ZIF code: ZIF-90 materials were successfully synthesized in an optimized water-based system. The particle size, ranging from micro- to nanoscales, could be controlled by different amounts of polyvinylpyrrolidone (PVP), Zn/imidazole-2-carboxaldehyde ratio and alcohol (see figure).关键词:green...
The new strategy is based on a controlled single-crystal to single-crystal linker exchange of 2-methylimidazole in ZIF-8 membrane grains with 2-imidazolecarboxaldehyde (ZIF-90 linker), thereby enlarging the effective aperture size of ZIF-8. The linker-exchanged ZIF-8 membranes showed a drastic ...
A crack-free sub-nanometer composite structure for the study of ion transfer was constructed by in situ growth of ZIF-90 [Zn(ICA)2, ICA=Imidazole-2-carboxaldehyde] on the tip of a glass nanopipette. The potential-driven ion transfer through the sub-nanometer channels in ZIF-90 is ...
A crack-free sub-nanometer composite structure for the study of ion transfer was constructed by in situ growth of ZIF-90 [Zn(ICA)2, ICA=Imidazole-2-carboxaldehyde] on the tip of a glass nanopipette. The potential-driven ion transfer through the sub-nanometer channels in ZIF-90 is ...
Methotrexate (MTX), an anticancer drug as folic acid analogue was loaded into ZIF-90 through Schiff base reaction between amino group in MTX and aldehyde group of imidazole-2-carboxaldehyde ligand with drug loading amount about 250 mg/g. As a pH-sensitive biomaterial, chitosan (CS) was ...
The new strategy is based on a controlled single‐crystal to single‐crystal linker exchange of 2‐methylimidazole in ZIF‐8 membrane grains with 2‐imidazolecarboxaldehyde (ZIF‐90 linker), thereby enlarging the effective aperture size of ZIF‐8. The linker‐exchanged ZIF‐8 membranes showed a ...
For example, the MOFs of metal 2-substituent imidazolates [{M ACHTUNGTRENNUNG(R-im)2}]1 (M= Zn and Co, Rim= 2-substituent imidazolates) have been only prepared for those with R-group to be methyl, ethyl, nitro and carboxaldehyde and each of them has been observed with no more than...
The new strategy is based on a controlled single-crystal to single-crystal linker exchange of 2-methylimidazole in ZIF-8 membrane grains with 2-imidazolecarboxaldehyde (ZIF-90 linker), thereby enlarging the effective aperture size of ZIF-8. The linker-exchanged ZIF-8 membranes showed a drastic ...
The reaction of Gd(hfa) 3 with Ni(L) (H 2L is the Schiff base derived from the condensation of 1 equiv. each of 5-chlorobenzophenone, 1,2-diaminobenzene, and 5-methyl-4-imidazolecarboxaldehyde) produced Gd(hfa) 3Ni(L) ( 3) in which imidazolate is available to bridge Gd(III) and...