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题名: Synthesis of well-dispersed TiO2@reduced graphene oxide (rGO) nanocomposites and their photocatalytic properties
作者: Sohail, Muhammad1;  Xue, Haoliang1;  Jiao, Qingze1, 2;  Li, Hansheng1;  Khan, Khakemin3;  Wang, Shanshan1;  Zhao, Yun1
关键词: TiO2 nanoparticles ;  Reduced graphene oxide ;  Nanocomposites ;  Photocatalysis
刊名: MATERIALS RESEARCH BULLETIN
发表日期: 2017-06-01
DOI: 10.1016/j.materresbull.2017.02.025
卷: 90, 页:125-130
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
英文摘要: In this work, graphene oxide (GO) nanosheets were prepared using a modified Hummers technique and as-obtained GO nanosheets were converted into particles by a spray drying method. Titanium dioxide (TiO2) nanoparticles were grown on the surface of GO particles to get TiO2@reduced graphene oxide (rGO) nanocomposites. Morphologies and structures of as-prepared pure TiO2 nanoparticles, rGO particles and their composites were characterized by scanning electron microscope, transmission electron microscope and X-ray diffractometer. The photocatalytic activities of TiO2@rGO nanocomposites were evaluated using UV-vis spectroscopy for the degradation of methylene blue. All the composites show better photocatalytic activities upon degradation of methylene blue than pure TiO2. The degradation rate of methylene blue is 92% for TiO2@rGO nanocomposites with TiO2 mass ratio of 84 wt%, while it is 71% for pure TiO2. rGO plays a key role in the charge recombination to enhance the electron hole separation. (C) 2017 Elsevier Ltd. All rights reserved.
关键词[WOS]: TITANATE NANOTUBES ;  HYDROGEN EVOLUTION ;  VISIBLE-LIGHT ;  EXPOSED 001 ;  TIO2 ;  COMPOSITES ;  WATER ;  NANOPARTICLES ;  DEGRADATION ;  BEHAVIOR
语种: 英语
WOS记录号: WOS:000401218400017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152263
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China
2.Beijing Inst Technol, Sch Chem Engn & Mat Sci, Zhuhai 519085, Zhuhai, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Sohail, Muhammad,Xue, Haoliang,Jiao, Qingze,et al. Synthesis of well-dispersed TiO2@reduced graphene oxide (rGO) nanocomposites and their photocatalytic properties[J]. MATERIALS RESEARCH BULLETIN,2017,90:125-130.
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