Application of novel nanobiocomposites for removal of nickel(II) from aqueous environments: Equilibrium, kinetics, thermodynamics and ex-situ studies
Korean Journal of Chemical Engineering, ISSN: 0256-1115, Vol: 33, Issue: 1, Page: 238-247
2016
- 5Citations
- 12Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
The current study presents a novel approach for the removal of Ni(II) from aqueous environments using plant gum-based (PG) and clay-based (CL) nanobiocomposite (NBC) composed of ZnO nanoparticles and chitosan. Parameters like pH, contact time, temperature, initial metal concentration and adsorbent dosage were optimized. Under optimized conditions, maximum removal of Ni(II) was noted as 90.1% and 95.5% in the case of PG-NBC and CL-NBC, respectively. Equilibrium studies suggested a homogeneous mode of adsorption. Good linearity was observed for the pseudo-first order kinetic model, suggesting a physical mode of adsorption. Thermodynamic studies showed an endothermic and spontaneous nature of adsorption. The mechanism was further elucidated using SEM, EDX, AFM and FT-IR analysis. Ex-situ studies showed a maximum Ni(II) removal of 87.34% from electroplating wastewater using CL-NBC in column mode. Regeneration studies suggested that CL-NBC could be consistently reused up to 4 cycles.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84952630850&origin=inward; http://dx.doi.org/10.1007/s11814-015-0113-z; http://link.springer.com/10.1007/s11814-015-0113-z; http://link.springer.com/content/pdf/10.1007/s11814-015-0113-z; http://link.springer.com/content/pdf/10.1007/s11814-015-0113-z.pdf; http://link.springer.com/article/10.1007/s11814-015-0113-z/fulltext.html; https://dx.doi.org/10.1007/s11814-015-0113-z; https://link.springer.com/article/10.1007/s11814-015-0113-z
Springer Science and Business Media LLC
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