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In Situ Grown TiO2 Nanospindles Facilitate the Formation of Holey Reduced Graphene Oxide by Photodegradation
Peng, Guiming1,2,3,4; Ellis, James E.2; Xu, Gang3; Xu, Xueqing3; Star, Alexander2
2016-03-23
Source PublicationACS APPLIED MATERIALS & INTERFACES
Volume8Issue:11Pages:7403-7410
AbstractTitanium dioxide (TiO2) nanostructures and TiO2/graphene nanocomposites are intensively studied materials for energy conversion, energy storage, and organic contaminant photodegradation. However, for TiO2/graphene composites, impermeability across the graphitic basal plane for electrolytes, metal ions, and gas molecules hinders their practical applications. Herein we report a simple, environmentally friendly synthetic route for mesoporous anatase TiO2 nanospindles, and successfully apply this method to obtain in situ grown TiO2 nanospindles/graphene oxide composite. After a thermal reduction at 400 degrees C, holes are created in the reduced graphene oxide (RGO) sheets through a photo catalytic oxidation mechanism. The formation of holes in RGO is promoted by photogenerated hydroxyl radicals that oxidize and subsequently decarboxylate the graphitic surface of RGO. The proposed mechanism was supported by photocatalytic electrochemical properties of the nanomaterials. The resulting TiO2/holey RGO composites may overcome the original impermeability of graphene sheets and find applications in catalysis, energy conversion/storage devices, and sensors.
SubtypeArticle
KeywordGraphene Carbon Nanotubes Titanium Dioxide Oxidation Catalysis Oxygen Reduction Reaction
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acsami.6b01188
WOS Subject ExtendedScience & Technology - Other Topics ; Materials Science
WOS KeywordLITHIUM-ION BATTERIES ; PHOTO-FENTON REACTION ; GRAPHITE OXIDE ; PHOTOCATALYTIC REDUCTION ; CARBON NANOTUBES ; SOLAR-CELLS ; NANOPARTICLES ; PERFORMANCE ; NANOSHEETS ; SHEETS
Indexed BySCI
Language英语
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000372946600074
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11206
Collection中国科学院广州能源研究所
Affiliation1.Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China
2.Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Peng, Guiming,Ellis, James E.,Xu, Gang,et al. In Situ Grown TiO2 Nanospindles Facilitate the Formation of Holey Reduced Graphene Oxide by Photodegradation[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(11):7403-7410.
APA Peng, Guiming,Ellis, James E.,Xu, Gang,Xu, Xueqing,&Star, Alexander.(2016).In Situ Grown TiO2 Nanospindles Facilitate the Formation of Holey Reduced Graphene Oxide by Photodegradation.ACS APPLIED MATERIALS & INTERFACES,8(11),7403-7410.
MLA Peng, Guiming,et al."In Situ Grown TiO2 Nanospindles Facilitate the Formation of Holey Reduced Graphene Oxide by Photodegradation".ACS APPLIED MATERIALS & INTERFACES 8.11(2016):7403-7410.
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