Adsorption of copper and nickel by using sawdust chitosan nanocomposite beads - A kinetic and thermodynamic study.

Autor: Kayalvizhi K; Research Department of Chemistry, Khadir Mohideen College (Affiliated to Bharathidasan University, Thiruchirappalli), Adirampattinam, 614701, Tamil Nadu, India., Alhaji NMI; Research Department of Chemistry, Khadir Mohideen College (Affiliated to Bharathidasan University, Thiruchirappalli), Adirampattinam, 614701, Tamil Nadu, India., Saravanakkumar D; PG & Research Department of Physics, Thiagarajar College, Madurai, Tamilnadu, India, 625009, Tamil Nadu, India., Mohamed SB; Department of Material Science, Central University of Tamil Nadu, Thiruvarur, 610001, Tamil Nadu, India., Kaviyarasu K; UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P O Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), IThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, P O Box 722, Somerset West, Western Cape Province, South Africa., Ayeshamariam A; Research Department of Physics, Khadir Mohideen College (Affiliated to Bharathidasan University, Thiruchirappalli), Adirampattinam, 614701, Tamil Nadu, India. Electronic address: ayeshamariamkmc@gmail.com., Al-Mohaimeed AM; Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia., AbdelGawwad MR; Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, International University of Sarajevo, 71210, Sarajevo, Bosnia and Herzegovina., Elshikh MS; Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2022 Jan; Vol. 203, pp. 111814. Date of Electronic Publication: 2021 Aug 02.
DOI: 10.1016/j.envres.2021.111814
Abstrakt: The adsorption behavior of biomaterial activated Sawdust-Chitosan nanocomposite beads (SDNCB) powder was investigated along with synthesis and experimental techniques approaches to study the removal efficiency of some heavy metal ions including Ni (II) and Cu (II) ions from aqueous solutions by assessing the surface-modified activated carbon by the cost-effective non-conventional method. Structural analysis of the entitled compound was evaluated by the PXRD techniques and its surface morphology was inferred by the following techniques: TEM, EDAX. The behavior of the functional group presents in the compound was discussed using the FTIR technique. Such parameters like dosage, pH, time, temperature, and initial concentration of copper and nickel were associated with this to examine the effect of adsorption of heavy elements that exist in the portable solution. Further, the cellulose and chitosan beads complex material have an appropriate surface area, it demonstrated metal ions removal efficiency was more appreciable due to the action of activated carbon, where this showed fast rate sorption kinetics due to strong involvement of Cu + & Ni + towards cellulose and chitosan's functional groups in the bio composite. The isotherm model so-called Langmuir, Freundlich, and Temkin model was utilized to plot the experimental adsorption dataset to infer the maximum adsorption capacity. Based on this model, the adsorption properties of the beads treated compound was determined by plotting the graphs in which sorption intensity (n) which implies expected sorption, and the correlation value are 1.989, 0.998, and 0,981 respectively.
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Databáze: MEDLINE
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