Synthesis of porous reduced graphene oxide as metal-free carbon for adsorption and catalytic oxidation of organics in water

Activation of reduced graphene oxide (RGO) using CO sub(2) to obtain highly porous and metal-free carbonaceous materials for adsorption and catalysis was investigated. A facile one-pot thermal process can simultaneously reduce graphene oxide and produce activated RGO without introducing any solid or...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 1; no. 19; pp. 5854 - 5859
Main Authors Peng, Wenchao, Liu, Shizhen, Sun, Hongqi, Yao, Yunjin, Zhi, Linjie, Wang, Shaobin
Format Journal Article
LanguageEnglish
Published 01.01.2013
Subjects
adsorption
carbon
carbon dioxide
catalytic activity
free radicals
graphene oxide
methylene blue
oxidation
phenol
sulfates
surface area
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Summary:Activation of reduced graphene oxide (RGO) using CO sub(2) to obtain highly porous and metal-free carbonaceous materials for adsorption and catalysis was investigated. A facile one-pot thermal process can simultaneously reduce graphene oxide and produce activated RGO without introducing any solid or aqueous activation agent. This process can significantly increase the specific surface area (SSA) of RGO from 200 to higher than 1200 m super(2) g super(-1), and the obtained materials were proven to be highly effective for adsorptive removal of both anionic (phenol) and cationic (methylene blue, MB) organics from water. Moreover, the activated RGO materials exhibited much better activity in effective activation of peroxymonosulfate (PMS) to produce sulfate radicals for oxidative degradation of MB.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:2050-7488
2050-7496
2050-7496
DOI:10.1039/c3ta10592j