Sherino, Bibi and Halim, Siti Nadiah Abdul and Manan, Ninie Suhana Abdul and Kamboh, Muhammad Afzal and Nodeh, Hamid Rashidi and Afzal, Saba and Bibi, Nusrat and Mohamad, Sharifah (2021) Synthesis of new Zn-decorated metal-organic frameworks for enhanced removal of carcinogenic textile dye: Equilibrium and kinetic modeling studies. Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engineering, 56 (12). pp. 1296-1305. ISSN 1093-4529, DOI https://doi.org/10.1080/10934529.2021.1987101.
Full text not available from this repository.Abstract
This paper describes the synthesis and characterization of Zn2+ decorated (adipic and terephthalic acid as linkers) piperazine-based metal-organic framework (P-MOFs) and their extraction behavior toward the Chicago sky blue (CSB) dye. The formation of Zn2+-decorated P-MOFs was confirmed by FT-IR spectroscopy, energy-dispersive spectroscopy, X-ray diffraction, BET surface area analysis and TGA. Adsorption behavior of the synthesized P-MOFs was explored through solid-phase adsorption (batch method) prior to UV-Vis spectrophotometric determination. Adsorption parameters, including adsorbent dosage, pH of solution, dye concentration, and time, were optimized. Excellent percentage removal of 94% and 95% for AP-Zn-MOF and TP-Zn-MOF, respectively, was achieved at pH 7.5. Kinetics studies indicated that the synthesized adsorbents AP-Zn-MOF and TP-Zn-MOF followed the pseudo-second-order rate model with R-2 value 0.9989. The Freundlich isotherm with high R-2 value as compared to Langmuir isotherm indicated that CSB adsorption for the synthesized MOFs follows multilayer adsorption.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education (MOHE), Malaysia[FP033-2019], Higher Education Commission of Pakistan |
| Uncontrolled Keywords: | Piperazine;Chicago sky blue dye;Adsorption;Adipic acid; Terephthalic acid |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 22 Jun 2022 07:58 |
| Last Modified: | 22 Jun 2022 07:58 |
| URI: | http://eprints.um.edu.my/id/eprint/34120 |
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