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Porous 3,4-di(3,5-dicarboxyphenyl)phthalate-based Cd2+ coordination polymer and its potential applications
Run-Dong Ding1, Dan-Dan Li1, Jie-Hui Yu1
1College of Chemistry, Jilin University, Changchun, Jilin 130012, China; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin 130012, China.
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
|February 13, 2021
Summary
A novel porous coordination polymer selectively adsorbs cationic dyes with high capacity and is recyclable. This material also enables the fabrication of white-light emitting and photochromic materials by incorporating rare earth ions.
Area of Science:
- Materials Science
- Coordination Chemistry
- Nanotechnology
Background:
- Porous coordination polymers (PCPs) with organic aminium guests show promise for dye adsorption and white-light materials.
- Polycarboxylic acids are key components in forming these porous structures with metal ions.
Purpose of the Study:
- To synthesize and characterize a novel porous coordination polymer using Cd2+ and a hexacarboxylic acid.
- To investigate the material's capacity for selective dye adsorption and its application in white-light emission.
Main Methods:
- Solvothermal self-assembly of Cd2+ and 3,4-di(3,5-dicarboxyphenyl)phthalic acid (H6L) to form PCP 1.
- Characterization of the porous structure and void volume (4327 Å3).
- Adsorption studies with cationic dyes (Azure A, Methylene Blue) and fabrication of white-light material with Eu3+/Tb3+.
Main Results:
- The synthesized PCP 1 selectively adsorbs cationic dyes (Azure A, Methylene Blue) with high capacities (698.2 mg/g for AA+, 573.2 mg/g for MB+).
- The material demonstrates recyclability for at least five cycles for Azure A adsorption.
- Incorporation of Eu3+/Tb3+ ions into PCP 1 yields a white-light emitting material (CIE: (0.33, 0.32)) with potential photochromic properties.
Conclusions:
- The study establishes a structure-property relationship for dye adsorption in PCPs.
- The synthesized material is effective for selective cationic dye removal and serves as a platform for advanced optical materials.
- The research highlights the potential of PCPs in environmental remediation and optoelectronic applications.
