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Towards effective design of active nanocarbon materials for integrating visible-light photocatalysis with ozonation
Xiao, Jiadong1,2; Xie, Yongbing1; Cao, Hongbin1; Wang, Yuxian1; Guo, Zhuang1,2; Chen, Yue1
2016-10-01
Source PublicationCARBON
ISSN0008-6223
Volume107Issue:OCTPages:658-666
Abstract

We herein present systematic insights into the potential of a wide variety of dimension-structured nanocarbons in visible light-O-3 integrated process for metal-free water decontamination. Single-walled carbon nanotube (SWCNT), multi-walled carbon nanotube (MWCNT), reduced graphene oxide (rGO) and fullerene (C-60) demonstrated high activities in catalytic ozonation, while graphitic carbon nitride (g-C3N4) and C-60 outshined in visible light-O-3 coupled process. The advantageous properties of nanocarbon materials in both catalytic ozonation and photocatalytic ozonation were acquired as further guidance for catalyst design. The effects of both liquid-phase and surface hydroxyl radicals (center dot OH) were determined by trapping experiments and in-situ electron paramagnetic resonance. The coupling coefficient of visible light and ozone on g-C3N4 was 95.8, which was never achieved in the previous literature. The center dot OH yield of Vis/O-3/g-C3N4, interpreted from oxalic acid removal rate, was superior to those of O-3/nanocarbon (MWCNT, rGO and C-60) and field-leading Vis/O-3/metal oxides (WO3 and TiO2) systems. Further strategies on g-C3N4 optimization were also proposed. This study contributes to the development of active metal-free nanocatalysts in photocatalytic ozonation for water treatment. (C) 2016 Elsevier Ltd. All rights reserved.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.carbon.2016.06.066
Indexed BySCI
Language英语
WOS KeywordWET AIR OXIDATION ; CATALYTIC OZONATION ; TIO2 NANOPARTICLES ; CARBON NANOTUBES ; SUPER SYNERGY ; WASTE-WATER ; OXALIC-ACID ; DEGRADATION ; G-C3N4 ; IRRADIATION
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
Funding OrganizationNational Science Fund for Distinguished Young Scholars of China(51425405) ; National Natural Science Foundation of China(21207133) ; Major Science and Technology Program for Water Pollution Control and Treatment(2015ZX07202-013)
WOS IDWOS:000380803600076
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21434
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Div Environm Technol & Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Jiadong,Xie, Yongbing,Cao, Hongbin,et al. Towards effective design of active nanocarbon materials for integrating visible-light photocatalysis with ozonation[J]. CARBON,2016,107(OCT):658-666.
APA Xiao, Jiadong,Xie, Yongbing,Cao, Hongbin,Wang, Yuxian,Guo, Zhuang,&Chen, Yue.(2016).Towards effective design of active nanocarbon materials for integrating visible-light photocatalysis with ozonation.CARBON,107(OCT),658-666.
MLA Xiao, Jiadong,et al."Towards effective design of active nanocarbon materials for integrating visible-light photocatalysis with ozonation".CARBON 107.OCT(2016):658-666.
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