A review on nickel(II) adsorption in single and binary component systems and future path

Md Aminul Islam*, Md Rabiul Awual, Michael J. Angove

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

175 Scopus citations

Abstract

Water polluted with heavy-metal ion has been a major problem in recent years. Among various metal ions, nickel(II) is a priority pollutant commonly found in industrial wastewater. As a highly toxic element at an elevated concentration, Ni(II) can pose a serious threat to our ecological environment as well as human being. Ni(II) adsorption from wastewater is a must for environmental management and sustainability. Remediation of Ni(II) contaminated water is possible through adsorption onto various innovative adsorbents from the aquatic environment. The current review looks at the present status of the research done so far Ni(II) adsorption using various adsorbents from wastewater. Ni(II) adsorption kinetics, edges, isotherm, thermodynamic parameters, and Ni(II) adsorption mechanism have also been talked over. Efforts have also been made to steer out of the advantages and disadvantages of adsorbents and the future research need in Ni(II) adsorption by adsorbents. Agricultural based substrates and nanosized metal oxides have been found a hopeful alternative for Ni(II) adsorption from wastewater. The Ni(II) primarily adsorbed onto a homogeneous substrate forming a monolayer. Ni(II) generally formed outer-sphere complexes at low pH values while it formed inner-sphere complexes at higher pH. More than one species is being sorbed, or more than one type of surface site is involved in Ni(II) adsorption process or both. However, significant research is needed to understand Ni(II)-surface interaction mechanism at the solid-water interface. This review can fill the lacuna of researchers who would like to do more research in this related area in depth.

Original languageEnglish
Article number103305
JournalJournal of Environmental Chemical Engineering
Volume7
Issue number5
DOIs
StatePublished - Oct 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd.

Keywords

  • Adsorption
  • Future path
  • Nickel(II)
  • Single and binary
  • Surface complexation
  • Wastewater

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

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