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Title: Recent advances in the use of graphene-family nanoadsorbents for removal of toxic pollutants from wastewater
Authors: Chowdhury, S.
Balasubramanian, R. 
Keywords: Adsorption
Environmental remediation
Graphene materials
Wastewater reclamation
Water treatment
Issue Date: Feb-2014
Citation: Chowdhury, S., Balasubramanian, R. (2014-02). Recent advances in the use of graphene-family nanoadsorbents for removal of toxic pollutants from wastewater. Advances in Colloid and Interface Science 204 : 35-56. ScholarBank@NUS Repository.
Abstract: Adsorption technology is widely considered as the most promising and robust method of purifying water at low cost and with high-efficiency. Carbon-based materials have been extensively explored for adsorption applications because of their good chemical stability, structural diversity, low density, and suitability for large scale production. Graphene - a single atomic layer of graphite - is the newest member in the family of carbon allotropes and has emerged as the "celeb" material of the 21st century. Since its discovery in 2004 by Novoselov, Geim and co-workers, graphene has attracted increased attention in a wide range of applications due to its unprecedented electrical, mechanical, thermal, optical and transport properties. Graphene's infinitely high surface-to-volume ratio has resulted in a large number of investigations to study its application as a potential adsorbent for water purification. More recently, other graphene related materials such as graphene oxide, reduced graphene oxide, and few-layered graphene oxide sheets, as well as nanocomposites of graphene materials have also emerged as a promising group of adsorbent for the removal of various environmental pollutants from waste effluents. In this review article, we present a synthesis of the current knowledge available on this broad and versatile family of graphene nanomaterials for removal of dyes, potentially toxic elements, phenolic compounds and other organic chemicals from aquatic systems. The challenges involved in the development of these novel nanoadsorbents for decontamination of wastewaters have also been examined to help identify future directions for this emerging field to continue to grow. © 2013 Elsevier B.V.
Source Title: Advances in Colloid and Interface Science
ISSN: 00018686
DOI: 10.1016/j.cis.2013.12.005
Appears in Collections:Staff Publications

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