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Aqueous removal of inorganic and organic contaminants by graphene-based nanoadsorbents: A review

Title
Aqueous removal of inorganic and organic contaminants by graphene-based nanoadsorbents: A review
Authors
Kim S.Park C.M.Jang M.Son A.Her N.Yu M.Snyder S.Kim D.-H.Yoon Y.
Ewha Authors
손아정
SCOPUS Author ID
손아정scopus
Issue Date
2018
Journal Title
Chemosphere
ISSN
0045-6535JCR Link
Citation
vol. 212, pp. 1104 - 1124
Keywords
AdsorptionGraphene based nanoadsorbentsInorganicsOrganicsWater treatment
Publisher
Elsevier Ltd
Indexed
SCI; SCIE; SCOPUS scopus
Abstract
Various graphene-based nanoadsorbents, including graphenes, graphene oxides, reduced graphene oxides, and their nanocomposites, have been widely studied as potential adsorbents due to their unique physicochemical properties, such as structural variability, chemical strength, low density, and the possibility of large scale fabrication. Adsorption mechanisms are governed largely by the physicochemical properties of contaminants, the characteristics of nanoadsorbents, and background water quality conditions. This review summarizes recent comprehensive studies on the removal of various inorganic (mainly heavy metals) and organic contaminants by graphene-based nanoadsorbents, and also discusses valuable information for applications of these nanoadsorbents in water and wastewater treatment. In particular, the aqueous removal of various contaminants was reviewed to (i) summarize the general adsorption capacities of various graphene-based nanoadsorbents for the removal of different inorganic and organic contaminants, (ii) evaluate the effects of key water quality parameters such as pH, temperature, background major ions/ionic strength, and natural organic matter on adsorption, (iii) provide a comprehensive discussion of the mechanisms that influence adsorption on these nanoadsorbents, and (iv) discuss the potential regeneration and reusability of nanoadsorbents. In addition, current challenges and future research needs for the removal of contaminants by graphene-based nanoadsorbents in water treatment processes are discussed briefly. © 2018 Elsevier Ltd
DOI
10.1016/j.chemosphere.2018.09.033
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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