Integrated biomass algae @ cross-linked pyromellitic dianhydride chitosan biocomposite for methyl violet 2B adsorption: modelling and experiment design optimization.
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| Title: | Integrated biomass algae @ cross-linked pyromellitic dianhydride chitosan biocomposite for methyl violet 2B adsorption: modelling and experiment design optimization. |
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| Authors: | Agha, Hasan M.1,2 (AUTHOR), Al-Kazragi, Muna Abd Ul Rasool3 (AUTHOR), Jawad, Ali H.1,2,4 (AUTHOR) ali288@uitm.edu.my, Wilson, Lee D.5 (AUTHOR), Kazem, Hussein A.6 (AUTHOR), ALOthman, Zeid A.7 (AUTHOR) |
| Source: | International Journal of Environmental Analytical Chemistry. Jul2026, Vol. 106 Issue 8, p2501-2523. 23p. |
| Subjects: | Adsorption kinetics, Adsorption isotherms, Experimental design, Physisorption, Algae |
| Abstract: | A new adsorbent was developed by integrating algae biomass (AG) into a chitosan (CN) matrix, followed by structural enhancement via crosslinking with pyromellitic dianhydride (PMDA) through a hydrothermal synthesis approach. This process resulted in the formation of a robust AG@CN-PMDA composite with improved physicochemical characteristics suitable for advanced adsorption applications. The AG@CN-PMDA composite was evaluated for its efficiency in removal of the cationic dye methyl violet 2B (MV 2B) from aqueous solution. The adsorption process was refined through the Box-Behnken design (RSM-BBD), evaluating three essential parameters: adsorbent dosage (A: 0.02–0.1 g/100 mL), pH (B: 4–10), and time (C: 5–20 min). The ideal conditions for attaining the best removal rate for MV 2B (86%) were determined based on the desirability function optimisation results, corresponding to 0.09 g/100 mL of AG@CN-PMDA, at a pH of 6.9 and time of 9.45 min. The adsorption isothermal analysis revealed a close fit between the experimental data of MV 2B adsorption and both the Temkin and Langmuir models, with the Temkin model showing a slightly better correlation. Furthermore, the adsorption kinetics are well-described by the pseudo-second-order model. The maximum adsorption capacity of AG@CN-PMDA was 162.3 mg/g at 25°C. The adsorption of MV 2B onto AG@CN-PMDA was spontaneous, endothermic, and entropy-driven as evidenced by negative ΔG° values. The binding of MV 2B dye onto the AG@CN-PMDA composite was facilitated through mechanisms such as hydrogen bonding, π–π stacking, and electrostatic attraction. These findings demonstrate that AG@CN-PMDA is an effective and sustainable adsorbent for the removal of cationic dyes from industrial effluents. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Environmental Analytical Chemistry is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 194673844 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Integrated biomass algae @ cross-linked pyromellitic dianhydride chitosan biocomposite for methyl violet 2B adsorption: modelling and experiment design optimization. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Agha%2C+Hasan+M%2E%22">Agha, Hasan M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Al-Kazragi%2C+Muna+Abd+Ul+Rasool%22">Al-Kazragi, Muna Abd Ul Rasool</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jawad%2C+Ali+H%2E%22">Jawad, Ali H.</searchLink><relatesTo>1,2,4</relatesTo> (AUTHOR)<i> ali288@uitm.edu.my</i><br /><searchLink fieldCode="AR" term="%22Wilson%2C+Lee+D%2E%22">Wilson, Lee D.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kazem%2C+Hussein+A%2E%22">Kazem, Hussein A.</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22ALOthman%2C+Zeid+A%2E%22">ALOthman, Zeid A.</searchLink><relatesTo>7</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Environmental+Analytical+Chemistry%22">International Journal of Environmental Analytical Chemistry</searchLink>. Jul2026, Vol. 106 Issue 8, p2501-2523. 23p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Adsorption+kinetics%22">Adsorption kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+isotherms%22">Adsorption isotherms</searchLink><br /><searchLink fieldCode="DE" term="%22Experimental+design%22">Experimental design</searchLink><br /><searchLink fieldCode="DE" term="%22Physisorption%22">Physisorption</searchLink><br /><searchLink fieldCode="DE" term="%22Algae%22">Algae</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A new adsorbent was developed by integrating algae biomass (AG) into a chitosan (CN) matrix, followed by structural enhancement via crosslinking with pyromellitic dianhydride (PMDA) through a hydrothermal synthesis approach. This process resulted in the formation of a robust AG@CN-PMDA composite with improved physicochemical characteristics suitable for advanced adsorption applications. The AG@CN-PMDA composite was evaluated for its efficiency in removal of the cationic dye methyl violet 2B (MV 2B) from aqueous solution. The adsorption process was refined through the Box-Behnken design (RSM-BBD), evaluating three essential parameters: adsorbent dosage (A: 0.02–0.1 g/100 mL), pH (B: 4–10), and time (C: 5–20 min). The ideal conditions for attaining the best removal rate for MV 2B (86%) were determined based on the desirability function optimisation results, corresponding to 0.09 g/100 mL of AG@CN-PMDA, at a pH of 6.9 and time of 9.45 min. The adsorption isothermal analysis revealed a close fit between the experimental data of MV 2B adsorption and both the Temkin and Langmuir models, with the Temkin model showing a slightly better correlation. Furthermore, the adsorption kinetics are well-described by the pseudo-second-order model. The maximum adsorption capacity of AG@CN-PMDA was 162.3 mg/g at 25°C. The adsorption of MV 2B onto AG@CN-PMDA was spontaneous, endothermic, and entropy-driven as evidenced by negative ΔG° values. The binding of MV 2B dye onto the AG@CN-PMDA composite was facilitated through mechanisms such as hydrogen bonding, π–π stacking, and electrostatic attraction. These findings demonstrate that AG@CN-PMDA is an effective and sustainable adsorbent for the removal of cationic dyes from industrial effluents. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Environmental Analytical Chemistry is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/03067319.2025.2576558 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 23 StartPage: 2501 Subjects: – SubjectFull: Adsorption kinetics Type: general – SubjectFull: Adsorption isotherms Type: general – SubjectFull: Experimental design Type: general – SubjectFull: Physisorption Type: general – SubjectFull: Algae Type: general Titles: – TitleFull: Integrated biomass algae @ cross-linked pyromellitic dianhydride chitosan biocomposite for methyl violet 2B adsorption: modelling and experiment design optimization. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Agha, Hasan M. – PersonEntity: Name: NameFull: Al-Kazragi, Muna Abd Ul Rasool – PersonEntity: Name: NameFull: Jawad, Ali H. – PersonEntity: Name: NameFull: Wilson, Lee D. – PersonEntity: Name: NameFull: Kazem, Hussein A. – PersonEntity: Name: NameFull: ALOthman, Zeid A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 03067319 Numbering: – Type: volume Value: 106 – Type: issue Value: 8 Titles: – TitleFull: International Journal of Environmental Analytical Chemistry Type: main |
| ResultId | 1 |
