Graphene oxide: A promising nanomaterial for energy and environmental applications

Abstract

Graphene oxide (GO), the functionalized graphene with oxygen-containing chemical groups, has recently attracted resurgent interests because of its superior properties such as large surface area, mechanical stability, tunable electrical and optical properties. Moreover, the surface functional groups of hydroxyl, epoxy and carboxyl make GO an excellent candidate in coordinating with other materials or molecules. Owing to the expanded structural diversity and improved overall properties, GO and its composites hold great promise for versatile applications of energy storage/conversion and environment protection, including hydrogen storage materials, photocatalyst for water splitting, removal of air pollutants and water purification, as well as electrode materials for various lithium batteries and supercapacitors. In this review, we present an overview on the current successes, as well as the challenges, of the GO-based materials for energy and environmental applications.

Adsorption performance of modified graphene oxide nanoparticles for the removal of toluene, ethylbenzene, and xylenes from aqueous solution

“…GO sheets consist of functional groups such as: carboxyl, hydroxyl and carbonyl groups [18]. Furthermore, GO is the graphene functionalized with groups of oxygen [19]. GO has some advantages compared to other adsorbents due to its low cost and environmentally friendly nature [8].…”

Green Routes for Graphene Oxide Reduction and Self- Assembled Graphene Oxide Micro- and Nanostructures Production

“…It is noteworthy that the GO sheets'self-assembly was observed to occur at interfaces such as solidliquid and air-liquid [12], and hence some hybrid metal-or metal oxide-GO nanocomposites comprise GO-coated inorganic nanoparticles.…”

“…At present, a number of nanocomposites have been prepared by diverse methods and with specific physicochemical properties for biomedical [73], energy conversion, environmental and electrochemical storage [12], and miscellaneous [9] applications, as reported in recent review articles.…”

Adatom doping-enriched geometric and electronic properties of pristine graphene: a method to modify the band gap

“…Of these mentioned ways, this paper is primarily concerned with an investigation of the properties of oxygenated graphene, also known as graphene oxide (GO). These GOs, doped by oxygen atom either on one side or both sides, are considered to be useful for a wide variety of device-based applications including supercapacitors [24][25][26][27], energy storage [28,29], sensors [30][31][32], mermistors [28] and water purification [33].…”