Aqueous removal of inorganic and organic contaminants by graphene-based nanoadsorbents: A review
- 주제(키워드) Adsorption , Graphene based nanoadsorbents , Inorganics , Organics , Water treatment
- 주제(기타) Environmental Sciences
- 설명문(일반) [Kim, Sewoon; Yoon, Yeomin] Univ South Carolina, Dept Civil & Environm Engn, 300 Main St, Columbia, SC 29208 USA; [Park, Chang Min] Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; [Jang, Min] Kwangwoon Univ, Dept Environm Engn, 447-1 Wolgye Dong Nowon Gu, Seoul, South Korea; [Son, Ahjeong] Ewha Womans Univ, Dept Environm Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea; [Her, Nauguk] Korea Army Acad Young Cheon, Dept Civil & Environm Engn, 495 Hogook Ro, Young Cheon 38900, Gyeongbuk, South Korea; [Yu, Miao] Rensselaer Polytech Inst, Dept Chem & Biol Engn, Troy, NY 12180 USA; [Snyder, Shane] Nanyang Technol Univ, Sch Civil & Environm Engn, 1 Cleantech Loop, Singapore 637141, Singapore; [Snyder, Shane] Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ 85721 USA; [Kim, Do-Hyung] Korea Environm Ind & Technol Inst, 215 Jinheungno, Seoul, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 PERGAMON-ELSEVIER SCIENCE LTD
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000156648
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.chemosphere.2018.09.033
초록/요약
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 nano adsorbents, 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. (C) 2018 Elsevier Ltd. All rights reserved.
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