Cited by 722Advanced oxidation water treatmentAdvanced Photocatalysis TechniquesIndustrial Gas Emission Control

Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants

Sun, Hongqi, Liu, Shizhen, Zhou, Guanliang, Ang, Ha Ming, Tadé, Moses O, Wang, Shaobin·2012·ACS Applied Materials & Interfaces

Abstract

We discovered that chemically reduced graphene oxide, with an I(D)/I(G) >1.4 (defective to graphite) can effectively activate peroxymonosulfate (PMS) to produce active sulfate radicals. The produced sulfate radicals (SO(4)(•-)) are powerful oxidizing species with a high oxidative potential (2.5-3.1 vs 2.7 V of hydroxyl radicals), and can effectively decompose various aqueous contaminants. Graphene demonstrated a higher activity than several carbon allotropes, such as activated carbon (AC), graphite powder (GP), graphene oxide (GO), and multiwall carbon nanotube (MWCNT). Kinetic study of graphene catalyzed activation of PMS was carried out. It was shown that graphene catalysis is superior to that on transition metal oxide (Co(3)O(4)) in degradation of phenol, 2,4-dichlorophenol (DCP) and a dye (methylene blue, MB) in water, therefore providing a novel strategy for environmental remediation.

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Crossref · 10.1021/am301372d

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Authors
Sun, H., Liu, S., Zhou, G., Ang, H. M., Tadé, M. O., & Wang, S.
Affiliations
  • Curtin University (AU)
  • Department of Chemical Engineering and CRC for Contamination Assessment and Remediation of the Environment (CRC-CARE), Curtin University, GPO Box U1987, WA 6845, Australia
Corresponding author
  • Sun, Hongqi
  • Wang, Shaobin
Venue
ACS Applied Materials & Interfaces
Published
2012-09-18
Volume
4
Issue
10
Pages
5466-5471
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2038245738
Cited by
722
References
44
Citations by year
2026: 14 · 2025: 33 · 2024: 45 · 2023: 59 · 2022: 78 · 2021: 73 · 2020: 106 · 2019: 79 · 2018: 64 · 2017: 57 · 2016: 40 · 2015: 28 · 2014: 28 · 2013: 17
FWCI
21.17
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
  • eSpace (Curtin University) (submittedVersion)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
  • Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
Keywords
reduced graphene oxide, peroxymonosulfate activation, sulfate radicals, catalytic oxidation, organic pollutant degradation, phenol degradation, 2,4-dichlorophenol, methylene blue, dye degradation, environmental remediation, reaction kinetics
MeSH terms
Catalysis, Chlorophenols, Free Radicals, Graphite, Methylene Blue, Oxidation-Reduction, Oxides, Water Pollutants, Chemical, Phenol, Nanotubes, Carbon, Environmental Restoration and Remediation

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