Sherino, Bibi and Mohamad, Sharifah and Manan, Ninie Suhana Abdul and Tareen, Huma and Yamin, Bohari Mohd and Halim, Siti Nadiah Abdul (2018) Structural, electrochemical, and adsorption studies of Ni and Zn benzylimidazole coordination polymers with terephthalate linkers. Transition Metal Chemistry, 43 (1). pp. 53-64. ISSN 0340-4285, DOI https://doi.org/10.1007/s11243-017-0193-1.
Full text not available from this repository.Abstract
Two coordination polymers, [Ni(bim)2(L1)(H2O)2]n (CP-1) and [Zn(bim)(L1)(Cl)]n (CP-2) (bim = 1-benzylimidazole, L1 = terephthalic acid), were synthesized and characterized by physicochemical and spectroscopic methods. The Ni(II) center in CP-1 is octahedral, while the Zn(II) center in CP-2 is tetrahedral. CP-1 and CP-2 were used to modify carbon paste electrodes to assess their effect on the electrochemical behavior of ferricyanide. The redox reactions of ferricyanide on both electrodes proved to be reversible and diffusion controlled, with ferricyanide diffusion coefficients for CP-1 and CP-2 of 1.88 × 105 and 3.44 × 105 cm2 s−1, respectively. These coordination polymers were also investigated for their adsorption behavior toward two dyes: Chicago sky blue and methylene blue. CP-1 and CP-2 both rapidly adsorbed the anionic Chicago sky blue dye by different intermolecular interactions; in contrast, the cationic methylene blue dye was adsorbed to a lesser extent. The adsorption of these CPs depends on the charge but not the size of the dye. Addition of methanolic potassium nitrate solution caused the release of the adsorbed dyes.
| Item Type: | Article |
|---|---|
| Funders: | Financial support from University Malaya of Research Grant (RP011B-14SUS), IPPP grant (PG116-2014B), Fundamental Research Grant Scheme, FRGS (FP005-2015A), Higher Education Commission of Pakistan under FDP |
| Uncontrolled Keywords: | Adsorption;Aromatic compounds;Carbon; Dyes; Electrochemical electrodes; Electrodes; Nickel; Nickel compounds; Potash; Redox reactions; Spectroscopic analysis; Zinc; Zinc compounds |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 13 Mar 2019 02:35 |
| Last Modified: | 13 Mar 2019 02:35 |
| URI: | http://eprints.um.edu.my/id/eprint/20678 |
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