Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan
In this study, cellulose was produced by activating peanut shells with 5% NaOH as an alkaline agent and bleaching with 5 wt.% H2O2. Before being modified with chitosan, the cellulose was slightly oxidized with ammonium persulfate to introduce carboxyl groups. The equilibrium and kinetics of nickel...
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| Format: | Article |
| Language: | English |
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Vietnam Ministry of Science and Technology
2024-03-01
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| Series: | Vietnam Journal of Science, Technology and Engineering |
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| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1182 |
| _version_ | 1827316697195872256 |
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| author | Thi Lan Phung Thi Kim Giang Nguyen Phuong Hien Ho Thanh Nga Pham |
| author_facet | Thi Lan Phung Thi Kim Giang Nguyen Phuong Hien Ho Thanh Nga Pham |
| author_sort | Thi Lan Phung |
| collection | DOAJ |
| description |
In this study, cellulose was produced by activating peanut shells with 5% NaOH as an alkaline agent and bleaching with 5 wt.% H2O2. Before being modified with chitosan, the cellulose was slightly oxidized with ammonium persulfate to introduce carboxyl groups. The equilibrium and kinetics of nickel adsorption on the as-prepared material were investigated. Langmuir, Freundlich, and Temkin isotherm models were used to describe the equilibrium isotherms. The Langmuir and Temkin adsorption isotherms were better fits to the equilibrium data than the Freundlich equation. The Langmuir monolayer adsorption capacity of nickel ions on cellulose from peanut shells modified with chitosan was found to be 25.70 mg/g. The Temkin adsorption constant was calculated as 0.45 kJ/mol. Therefore, the interaction between nickel ions and the surface of the as-prepared material are assumed to be weak. Kinetic data were evaluated by pseudo-first-order and pseudosecond-order models, and rate constants were determined. Simulations demonstrated that the pseudo-secondorder equation could adequately describe the adsorption of nickel ions.
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| first_indexed | 2024-04-24T23:19:49Z |
| format | Article |
| id | doaj.art-ac0259f00011405a8724665790752e99 |
| institution | Directory Open Access Journal |
| issn | 2525-2461 2615-9937 |
| language | English |
| last_indexed | 2024-04-24T23:19:49Z |
| publishDate | 2024-03-01 |
| publisher | Vietnam Ministry of Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Science, Technology and Engineering |
| spelling | doaj.art-ac0259f00011405a8724665790752e992024-03-16T23:50:14ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372024-03-0166110.31276/VJSTE.66(1).24-33Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosanThi Lan PhungThi Kim Giang NguyenPhuong Hien HoThanh Nga Pham In this study, cellulose was produced by activating peanut shells with 5% NaOH as an alkaline agent and bleaching with 5 wt.% H2O2. Before being modified with chitosan, the cellulose was slightly oxidized with ammonium persulfate to introduce carboxyl groups. The equilibrium and kinetics of nickel adsorption on the as-prepared material were investigated. Langmuir, Freundlich, and Temkin isotherm models were used to describe the equilibrium isotherms. The Langmuir and Temkin adsorption isotherms were better fits to the equilibrium data than the Freundlich equation. The Langmuir monolayer adsorption capacity of nickel ions on cellulose from peanut shells modified with chitosan was found to be 25.70 mg/g. The Temkin adsorption constant was calculated as 0.45 kJ/mol. Therefore, the interaction between nickel ions and the surface of the as-prepared material are assumed to be weak. Kinetic data were evaluated by pseudo-first-order and pseudosecond-order models, and rate constants were determined. Simulations demonstrated that the pseudo-secondorder equation could adequately describe the adsorption of nickel ions. https://vietnamscience.vjst.vn/index.php/vjste/article/view/1182adsorptioncellulosechitosanisothermskineticspeanut shell |
| spellingShingle | Thi Lan Phung Thi Kim Giang Nguyen Phuong Hien Ho Thanh Nga Pham Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan Vietnam Journal of Science, Technology and Engineering adsorption cellulose chitosan isotherms kinetics peanut shell |
| title | Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan |
| title_full | Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan |
| title_fullStr | Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan |
| title_full_unstemmed | Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan |
| title_short | Study on the equilibrium and kinetics of nickel (II) adsorption on cellulose from peanut shell modified with chitosan |
| title_sort | study on the equilibrium and kinetics of nickel ii adsorption on cellulose from peanut shell modified with chitosan |
| topic | adsorption cellulose chitosan isotherms kinetics peanut shell |
| url | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1182 |
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