(2020) Multi-modification of Na-Y zeolite with ZnO nanoparticles, amine, and mercapto functional groups for single and simultaneous heavy metal adsorption from water system. Research on Chemical Intermediates. pp. 3569-3591. ISSN 0922-6168
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Multi-modification of Na-Y zeolite with ZnO nanoparticles, amine, and mercapto functional groups for single and simultaneous heavy metal adsorption from water system.pdf Download (2MB) |
Abstract
A multi-functionalized Na-Y/ZnO/NH2/SH composite adsorbent was synthesized for Pb2+ and Ni2+ removal from single and binary aqueous systems. The prepared composites were characterized by FTIR, FESEM, XRD, BET, and N-2 adsorption-desorption techniques. The effect of ZnO nanoparticles, amine, and thiol functional groups on the adsorption performance was studied in a batch system. The adsorption behavior of Pb2+ and Ni2+ ions was evaluated as a function of initial metal concentration, contact time, pH, and temperature. The adsorption process of both Pb2+ and Ni2+ ions followed the double-exponential kinetics model. Also, the investigation of isotherm models exhibited a monolayer adsorption onto the synthesized composite. The maximum adsorption capacity of Na-Y/ZnO/NH2/SH composite was found to be 177.9 mg/g for Ni2+ ions and 295.4 mg/g for Pb2+ ions. The synthesized Na-Y/ZnO/NH2/SH composite was regenerated multiple times showing a promising adsorbent with high regeneration efficiency. In a binary system, the inhibitory influence of Pb2+ ions on the Ni2+ adsorption was greater than the inhibitory influence of Ni2+ ions on the Pb2+ adsorption.
| Item Type: | Article |
|---|---|
| Keywords: | Na-Y zeolite ZnO nanoparticles Amine-mercapto functional groups Heavy metal Binary adsorption aqueous-solution waste-water nanofibrous membrane efficient removal pb ii ions pb(ii) adsorbent sorption cu(ii) Chemistry |
| Page Range: | pp. 3569-3591 |
| Journal or Publication Title: | Research on Chemical Intermediates |
| Journal Index: | ISI |
| Volume: | 46 |
| Number: | 7 |
| Identification Number: | https://doi.org/10.1007/s11164-020-04162-3 |
| ISSN: | 0922-6168 |
| Depositing User: | مهندس مهدی شریفی |
| URI: | http://eprints.bmsu.ac.ir/id/eprint/8856 |
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