title: Facile Access to Graphene Oxide from Ferro-Induced Oxidation.
abstract: Methods allowing the oxidation of graphite to graphene oxide (GO) are vital important for the production of graphene from GO. This oxidation reaction has mainly relied on strong acid strategy for 174 years, which circumvents issues associated with toxicity of reagent and product, complex post-treatment, high cost and waste generation. Here, we report a green route for performing this oxidization reaction via a ferro-induced strategy, with use of water, potassium ferrate (Fe(VI)) and hydrogen peroxide (H2O2) as reagents, to produce about 65% yield of GO (vs. 40% for Hummers' method, the most commonly used concentrated acid strategy) and non-toxic by-products. Moreover, GO produced from this new method shows equivalent performance to those reported previously. This H2SO4-free strategy makes it possible to process graphite into GO in a safe, low-cost, time-saving, energy-efficient and eco-friendly pathway, opening a promising avenue for the large-scale production of GO and GO-based materials.
authors.affiliation: State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China.
authors.forename: Chao
authors.initials: C
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China.
authors.forename: Cai-Feng
authors.initials: CF
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China.
authors.forename: Su
authors.initials: S
authors.lastname: Chen
mesh_terms: D006108:Graphite / Q000737:chemistry*; D058085:Iron Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010209:Paper
chemical_list: D058085:Iron Compounds; D006108:Graphite
references.citation: Science. 2008 Sep 26;321(5897):1815-7
references.pmid: 18818353
references.citation: Science. 2004 Oct 22;306(5696):666-9
references.pmid: 15499015
references.citation: Angew Chem Int Ed Engl. 2014 Jul 21;53(30):7720-38
references.pmid: 24962439
references.citation: ACS Nano. 2010 Aug 24;4(8):4806-14
references.pmid: 20731455
references.citation: Nat Commun. 2015 Jan 21;6:5716
references.pmid: 25607686
references.citation: Nat Nanotechnol. 2013 Feb;8(2):100-3
references.pmid: 23263726
references.citation: Nat Nanotechnol. 2013 Apr;8(4):235-46
references.pmid: 23552117
references.citation: Science. 2014 Feb 14;343(6172):752-4
references.pmid: 24531966
references.citation: Science. 2014 Mar 14;343(6176):1228-32
references.pmid: 24626924
references.citation: Chem Soc Rev. 2014 Jan 7;43(1):291-312
references.pmid: 24121318
references.citation: Chemosphere. 2010 Jun;80(4):351-65
references.pmid: 20494399
references.citation: J Am Chem Soc. 2012 Apr 4;134(13):5850-6
references.pmid: 22385480
references.citation: J Org Chem. 1996 Sep 6;61(18):6360-6370
references.pmid: 11667478
references.citation: Nat Nanotechnol. 2008 May;3(5):270-4
references.pmid: 18654522
references.citation: ACS Nano. 2010 Nov 23;4(11):6557-64
references.pmid: 20942443
references.citation: Science. 2006 Jun 30;312(5782):1937-41
references.pmid: 16741074
references.citation: Chemosphere. 2005 Oct;61(4):537-43
references.pmid: 16202807
references.citation: ACS Nano. 2014 Mar 25;8(3):3060-8
references.pmid: 24568241
references.citation: Science. 2013 Aug 2;341(6145):534-7
references.pmid: 23908233
references.citation: Nat Chem. 2011 Oct;3(10):788-93
references.pmid: 21941251
references.citation: Nature. 2012 Jul 5;487(7405):77-81
references.pmid: 22722861
references.citation: Nat Chem. 2014 Feb;6(2):151-8
references.pmid: 24451592
references.citation: Nat Nanotechnol. 2014 Apr;9(4):273-8
references.pmid: 24633521
references.citation: Nat Nanotechnol. 2008 Feb;3(2):101-5
references.pmid: 18654470