Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Simultaneous adsorption of heavy metals from aqueous matrices by nanocomposites: A first systematic review of the evidence

Wed Feb 8 11:07:19 2023

(2022) Simultaneous adsorption of heavy metals from aqueous matrices by nanocomposites: A first systematic review of the evidence. Environmental Health Engineering and Management Journal. pp. 9-14. ISSN 2423-3765

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Abstract

Background: Nanocomposites have received remarkable attention as effective adsorbents for removal of coexisting pollutants over the last decades. The presence of heavy metals (HMs) in wastewater has caused a global health concern. Therefore, the aim of this study was to review the most relevant publications reporting the use of nanostructures to simultaneous adsorption of HMs in mixed aqueous systems. Methods: In this systematic review, 9 studies were included through a systematic search in the three databases (ISI, Scopus, and PubMed) during 1990-2021. The optimal value of simultaneous adsorption parameters such as initial concentration, contact time, adsorbent dosage, and pH was discussed. Results: Findings indicate that the Langmuir and Freundlich models and the pseudo-second-order kinetic model have been widely used and the most popular models to describe the equilibrium of HMs by nanoadsorbents. This study confirmed that the simultaneous removal rate of HMs decreased with an increase in pH value. It was found that the major mechanisms of HMs adsorption onto nanostructures were electrostatic interactions and precipitation. Conclusion: Nanocomposites have remarkable adsorption performance for HMs with the highest adsorption capacity (qe(mg/g)).

Item Type: Article
Creators:
CreatorsEmail
Mirzaee, S. A.UNSPECIFIED
Jaafarzadeh, N.UNSPECIFIED
Martinez, S. S.UNSPECIFIED
Noorimotlagh, Z.UNSPECIFIED
Keywords: Adsorption Wastewater Heavy metals Nanocomposites Kinetics zero-valent iron removal nanoparticles cd(ii) pb(ii) ions performance phosphate as(iii) water Environmental Sciences & Ecology
Divisions:
Page Range: pp. 9-14
Journal or Publication Title: Environmental Health Engineering and Management Journal
Journal Index: ISI
Volume: 9
Number: 1
Identification Number: https://doi.org/10.34172/ehem.2022.02
ISSN: 2423-3765
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/3916

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