Magnesium oxide(MgO)nanoadsorbents in wastewater treatment:A comprehensive review

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外文摘要：Wastewater contamination by heavy metals and synthetic dyes presents a significant environmental challenge,necessitating effective and sus-tainable separation techniques.This review article provides a detailed examination of magnesium oxide(MgO)nanoparticles as an innovative nanoadsorbent for wastewater treatment,with a specific focus on heavy metal and dye removal.The review comprehensively explores various aspects of MgO nanoparticles,including their structural characteristics and synthesis techniques.The article delves into the morphology and crystallographic arrangement of MgO nanoparticles,offering insights into their structural attributes.Given the complexity of adsorption proces-ses,the review identifies and analyzes parameters influencing the adsorption efficiency of MgO nanoparticles,such as temperature,pH,contact time,initial concentration,and co-existing ions.The interplay between these parameters and the adsorption capability of MgO nanoparticles em-phasizes the importance of optimizing operational conditions.Furthermore,the review assesses various synthesis methods for MgO nanoparti-cles,including sol-gel,hydrothermal,precipitation,green synthesis,solvothermal,and template-assisted techniques.It discusses the advantages,limitations,and resulting nanoparticle characteristics of each method,enabling readers to grasp the implications of synthesis processes on adsorp-tion efficiency.This comprehensive review consolidates current insights into the effectiveness of MgO nanoparticles as a potent nanoadsorbent for removing heavy metals and dyes from wastewater covering a wide spectrum of aspects related to MgO nanoparticles.Moreover,there is a need to investigate the use of MgO in the treatment of actual wastewater or river water,in order to leverage its cost-effectiveness and high effi-ciency for practical water treatment applications in real-time.

外文关键词：

MgO nanoparticlesNanoadsorbentWastewater treatmentHeavy metalsDye separationAdsorptionSynthesis methods

作者：

H.C.S.Perera、V.Gurunanthanan、Anoop Singh、M.M.M.G.P.G.Mantilaka、G.Das、Sandeep Arya

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作者单位：

Department of Physics,Khalifa University,Abu Dhabi,12788,United Arab Emirates

Postgraduate Institute of Science,University of Peradeniya,Peradeniya,Sri Lanka

Department of Humanities and Sciences,Guru Nanak Institutions Technical Campus,Ibrahimpatnam,Hyderabad,501506,India

Centre for Global Health Research,Saveetha Medical College and Hospitals,Saveetha Institute of Medical and Technical Sciences,Chennai,602105,Tamil Nadu,India

Department of Physics,University of Jammu,Jammu and Kashmir,180006,India

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基金：

Khalifa University internal funding CIRA-2021-071Science batch of 1976-1980 of the University of Peradeniya,Sri Lanka

项目编号：

8474000416

出版年：

2024

DOI：

10.1016/j.jma.2024.05.003

镁合金学报(英文)

ISSN：2213-9567

年,卷(期)：2024.12(5)