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Chloro-benquinone Modified on Graphene Oxide as Metal-free Catalyst: Strong Promotion of Hydroxyl Radical and Generation of Ultra-Small Graphene Oxide
Zhao, He1; Wang, Juehua1,2; Zhang, Di1; Dai, Qin1,2; Han, Qingzhen3; Du, Penghui1,2; Liu, Chenming1; Xie, Yongbing1; Zhang, Yi1; Cao, Hongbin1; Fan, Zhuangjun4
2017-03-28
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume7
Abstract

Carbon-based metal-free catalyst has attracted more and more attention. It is a big challenge to improve catalytic activity of metal-free catalyst for decomposition of H2O2 to produce hydroxyl radical (HO center dot). Here, we report chloro-benquinone (TCBQ) modified on graphene oxide (GO) as metal-free catalyst for strong promotion of HO center dot. By the incorporation of GO, the HO center dot production by H2O2 and TCBQ is significantly promoted. Based on density functional theory, TCBQ modified GO (GO-TCBQ) is more prone to be nucleophilic attacked by H2O2 to yield HO center dot via electron transfer acceleration. Furthermore, the generated HO center dot can cut GO nanosheets into uniform ultra-small graphene oxide (USGO) through the cleavage of epoxy and C-C bonds. Interestingly, the damaged GO and in situ formed GO fragments can further enhance decomposition of H2O2 to produce HO center dot. Different from other catalytic processes, the GO-TCBQ metal-free catalysis process can be enhanced by GO itself, producing more HO center dot, and uniform USGO also can be generated. Thus, the metal free catalysis will be considered a fabrication method for uniform USGO, and may be extended to other fields including detoxifying organic pollutants and the application as disinfectants.

SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1038/srep42643
Indexed BySCI
Language英语
WOS KeywordOxygen Reduction Reaction ; Nitrogen-doped Graphene ; Photo-fenton Reaction ; Quantum Dots ; Hydrogen-peroxide ; Halogenated Quinones ; Functional-groups ; Carbon ; Oxidation ; Mechanism
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationNational Natural Science Foundation of China(51378487 ; Youth Innovation Promotion Association, CAS(2014037) ; 51425405)
WOS IDWOS:000397532600001
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22080
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
4.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin, Heilongjiang 150001, Peoples R China
Recommended Citation
GB/T 7714
Zhao, He,Wang, Juehua,Zhang, Di,et al. Chloro-benquinone Modified on Graphene Oxide as Metal-free Catalyst: Strong Promotion of Hydroxyl Radical and Generation of Ultra-Small Graphene Oxide[J]. SCIENTIFIC REPORTS,2017,7.
APA Zhao, He.,Wang, Juehua.,Zhang, Di.,Dai, Qin.,Han, Qingzhen.,...&Fan, Zhuangjun.(2017).Chloro-benquinone Modified on Graphene Oxide as Metal-free Catalyst: Strong Promotion of Hydroxyl Radical and Generation of Ultra-Small Graphene Oxide.SCIENTIFIC REPORTS,7.
MLA Zhao, He,et al."Chloro-benquinone Modified on Graphene Oxide as Metal-free Catalyst: Strong Promotion of Hydroxyl Radical and Generation of Ultra-Small Graphene Oxide".SCIENTIFIC REPORTS 7(2017).
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