Title
Design of chiral Co(II)-MOFs and their application in environmental remediation and waste water treatment
Author
Sudeshna Bhattacharya, Sukhen Bala, Raju Mondal
Year
2016
Journal
RSC Advances
Abstract
The present work reports the construction of new Co-MOFs based on an amide based bispyrazole ligand and different carboxylic acids with potential applications in the sphere of CO2 adsorption and photocatalytic waste water treatment. Four multifunctional MOFs, with a wide variety of dimensionality, porosity and surface characteristics were exploited for this purpose. The unique bis-bidentate nature of the ligand with two chelating compartments along with a semi-rigid backbone leads to some interesting chiral MOFs. Detail self-assembly studies reveals that both helicity as well as local environments around the metal centres are responsible for chirality. A detailed investigation shows the importance of these materials as chiral zeolite analogues for environmental remediation. The much improved photocatalytic degradation of a representative toxic dye molecule highlights the advantages of MOFs over the usual metal oxide based semiconductors as remediation materials. Furthermore, MOFs with an ability to capture CO2 gas, offer a solution to environmental pollutions.
Instrument
J-815
Keywords
Circular dichroism, Stereochemistry, Ligand binding, Materials, Inorganic chemistry, Coordination chemistry