Structural tuning of Zn()-MOFs based on pyrazole functionalized carboxylic acid ligands for organic dye adsorption

Two metal-organic frameworks, {(NH 2 Me 2 )[Zn(Pycia)]} n (MOF- 1 ) and {(NH 2 Me 2 )[Zn 2 (Pycia)(PBA)]} n (MOF- 2 ), have been synthesized based on pyrazole functionalized carboxylic acid ligands for organic dye adsorption. The enlarged pore dimension of MOF- 2 suggests the advantage of additional...

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Bibliographic Details
Published in:CrystEngComm 2020-09, Vol.22 (36), p.5941-5945
Main Authors: Liu, Xiao-Ting, Chen, Si-Si, Li, Si-Miao, Nie, Hong-Xiang, Feng, Yao-Qing, Fan, Yi-Ning, Yu, Mei-Hui, Chang, Ze, Bu, Xian-He
Format: Article
Language:English
Subjects:
Adsorption
Carboxylic acids
Crystallography
Dyes
Ligands
Metal-organic frameworks
Pyrazole
Selective adsorption
Tuning
Zinc
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Summary:Two metal-organic frameworks, {(NH 2 Me 2 )[Zn(Pycia)]} n (MOF- 1 ) and {(NH 2 Me 2 )[Zn 2 (Pycia)(PBA)]} n (MOF- 2 ), have been synthesized based on pyrazole functionalized carboxylic acid ligands for organic dye adsorption. The enlarged pore dimension of MOF- 2 suggests the advantage of additional linear auxiliary ligand for the structure tuning of the MOFs. Furthermore, the anionic frameworks of the MOFs endow them with size selective adsorption toward different cationic organic dyes. Two Zn( ii )-MOFs based on pyrazole functionalized carboxylic ligands have been constructed, which exhibit favorable selective adsorption of organic cationic dyes.
ISSN:1466-8033
1466-8033
DOI:10.1039/d0ce00798f