Standardized methodology for performance evaluation in using polyaniline-based adsorbents to remove aqueous contaminants

Samadi, A; Kong, L; Guo, W; Sillanpää, M; Boztepe, I; Song, C; Zeng, Q; Zhao, S

Standardized methodology for performance evaluation in using polyaniline-based adsorbents to remove aqueous contaminants

Samadi, A Kong, L Guo, W

Sillanpää, M Boztepe, I Song, C Zeng, Q Zhao, S

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Environmental Chemical Engineering, 2024, 12, (3), pp. 112650
Issue Date:: 2024-06-01

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Field	Value	Language
dc.contributor.author	Samadi, A
dc.contributor.author	Kong, L
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Sillanpää, M
dc.contributor.author	Boztepe, I
dc.contributor.author	Song, C
dc.contributor.author	Zeng, Q
dc.contributor.author	Zhao, S
dc.date.accessioned	2025-01-22T12:19:37Z
dc.date.available	2025-01-22T12:19:37Z
dc.date.issued	2024-06-01
dc.identifier.citation	Journal of Environmental Chemical Engineering, 2024, 12, (3), pp. 112650
dc.identifier.issn	2213-3437
dc.identifier.issn	2213-3437
dc.identifier.uri	http://hdl.handle.net/10453/184026
dc.description.abstract	In literature, mistakes and inconsistencies in evaluation of the adsorption equilibrium, kinetics, and thermodynamics in pollutants removal often exist. Here, we review these mistakes and propose a standardized methodology, with a focus on polyaniline (PANI)-based adsorbents to correctly determine the adsorption equilibrium data, kinetic rates, equilibrium time, and adsorption capacity. Removal of aqueous pollutants by PANI-based adsorbents through well-designed experiments predominantly involves monolayer chemisorption. The nature of adsorption, whether heterogeneous or homogeneous, is contingent upon the morphological characteristics and distribution of functional groups of the adsorbents. The literature reflects a multitude of complexities in the implementation of adsorption experiments and the subsequent analysis of results. Researchers have attempted to address these complexities, yet variations in findings remain due to the diverse experimental conditions applied. This study critically examines existing methodologies and their conditions to develop a distinctive approach for rational experimental design, meticulous sampling, and accurate calculations. Controversial descriptions regarding adsorption equilibrium, kinetics and thermodynamics are scrutinized and the scientifically reasonable methodologies are presented. Finally, the main steps in determining the adsorption mechanisms via physiochemical studies and adsorption experiments are recommended. This study contributes insightful perspectives to the field by offering a more robust and standardized methodology to conduct adsorption experiments and interpret adsorption results, thereby enhancing the reliability and comparability of findings in adsorption.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Journal of Environmental Chemical Engineering
dc.relation.isbasedon	10.1016/j.jece.2024.112650
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0306 Physical Chemistry (incl. Structural), 0904 Chemical Engineering, 0907 Environmental Engineering
dc.subject.classification	3406 Physical chemistry
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4011 Environmental engineering
dc.title	Standardized methodology for performance evaluation in using polyaniline-based adsorbents to remove aqueous contaminants
dc.type	Journal Article
utslib.citation.volume	12
utslib.for	0306 Physical Chemistry (incl. Structural)
utslib.for	0904 Chemical Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-01-22T12:19:36Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	3

Abstract:

In literature, mistakes and inconsistencies in evaluation of the adsorption equilibrium, kinetics, and thermodynamics in pollutants removal often exist. Here, we review these mistakes and propose a standardized methodology, with a focus on polyaniline (PANI)-based adsorbents to correctly determine the adsorption equilibrium data, kinetic rates, equilibrium time, and adsorption capacity. Removal of aqueous pollutants by PANI-based adsorbents through well-designed experiments predominantly involves monolayer chemisorption. The nature of adsorption, whether heterogeneous or homogeneous, is contingent upon the morphological characteristics and distribution of functional groups of the adsorbents. The literature reflects a multitude of complexities in the implementation of adsorption experiments and the subsequent analysis of results. Researchers have attempted to address these complexities, yet variations in findings remain due to the diverse experimental conditions applied. This study critically examines existing methodologies and their conditions to develop a distinctive approach for rational experimental design, meticulous sampling, and accurate calculations. Controversial descriptions regarding adsorption equilibrium, kinetics and thermodynamics are scrutinized and the scientifically reasonable methodologies are presented. Finally, the main steps in determining the adsorption mechanisms via physiochemical studies and adsorption experiments are recommended. This study contributes insightful perspectives to the field by offering a more robust and standardized methodology to conduct adsorption experiments and interpret adsorption results, thereby enhancing the reliability and comparability of findings in adsorption.

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http://hdl.handle.net/10453/184026