Three-dimensional titanium dioxide/graphene hybrids with improved performance for photocatalysis and energy storage

被引：43
作者：
Chen, Lin [1 ,2 ]
Yang, Sudong [1 ]
Mu, Lei [1 ]
Ma, Peng-Cheng [1 ]
机构：
[1] Chinese Acad Sci, Lab Environm Sci & Technol, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environments, Urumqi 830011, Peoples R China
[2] Xinjiang Uyghur Autonomous Reg Prod Qual Supervis, Urumqi 830011, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2018年 / 512卷
基金：
中国国家自然科学基金;
关键词：
Three-dimensional structure; Titanium dioxide/graphene hybrid; Self-assembly; Photocatalysis; Lithium ion batteries; REDUCED GRAPHENE OXIDE; TIO2 NANOTUBE ARRAYS; MESOPOROUS ANATASE TIO2; LITHIUM-ION BATTERIES; VISIBLE-LIGHT; ANODE MATERIALS; HYDROTHERMAL SYNTHESIS; ELECTRODE MATERIAL; FACILE SYNTHESIS; NANOPARTICLES;
D O I：
10.1016/j.jcis.2017.10.103
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of three-dimensional (3-D) TiO2/graphene (TiO2/GR) hybrids with different TiO2 weight ratios were prepared using a self-assembly approach followed by the gaseous reduction in a hydrothermal system. The method was based on the electrostatic attraction between the positively charged titanium glycolate precursor and negatively charged graphene oxide in an aqueous medium without any surfactant or template. The structure, morphology, physical and optical properties of the as-synthesized hybrids were characterized, and the results showed that TiO2 spheres were homogeneously confined within the 3-D networks of graphene, and acted as pillars to effectively separate the graphene sheets from each other. By optimizing the ratio of TiO2 in the hybrids, the material was identified as an excellent photocatalyst to remove organic compound in water with high degradation efficiency. Additionally, TiO2/GR hybrids delivered high specific capacity, enhanced rate capability and excellent cyclic stability when used as a freestanding electrode for lithium ion batteries. (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码：647 / 656
页数：10
相关论文
共 56 条
[1]   Preparation of fiber-based plasmonic photocatalyst and its photocatalytic performance under the visible light [J].
Chen, Lin ;
Yang, Sudong ;
Hao, Bin ;
Ruan, Jiongming ;
Ma, Peng-Cheng .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 166 :287-294
[2]   Controlled synthesis of hierarchical TiO2 nanoparticles on glass fibres and their photocatalytic performance [J].
Chen, Lin ;
Yang, Sudong ;
Maeder, Edith ;
Ma, Peng-Cheng .
DALTON TRANSACTIONS, 2014, 43 (33) :12743-12753
[3]   Facile hydrothermal synthesis of single crystalline TiOF2 nanocubes and their phase transitions to TiO2 hollow nanocages as anode materials for lithium-ion battery [J].
Chen, Lin ;
Shen, Laifa ;
Nie, Ping ;
Zhang, Xiaogang ;
Li, Hongsen .
ELECTROCHIMICA ACTA, 2012, 62 :408-415
[4]   Preparation of graphene film decorated TiO2 nano-tube array photoelectrode and its enhanced visible light photocatalytic mechanism [J].
Cheng, Xiuwen ;
Liu, Huiling ;
Chen, Qinghua ;
Li, Junjing ;
Wang, Pu .
CARBON, 2014, 66 :450-458
[5]   Macroscopic Multifunctional Graphene-Based Hydrogels and Aerogels by a Metal Ion Induced Self-Assembly Process [J].
Cong, Huai-Ping ;
Ren, Xiao-Chen ;
Wang, Ping ;
Yu, Shu-Hong .
ACS NANO, 2012, 6 (03) :2693-2703
[6]   High carrier density and capacitance in TiO2 nanotube arrays induced by electrochemical doping [J].
Fabregat-Santiago, Francisco ;
Barea, Eva M. ;
Bisquert, Juan ;
Mor, Gopal K. ;
Shankar, Karthik ;
Grimes, Craig A. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (34) :11312-11316
[7]   High-Performance Asymmetric Supercapacitor Based on Graphene Hydrogel and Nanostructured MnO2 [J].
Gao, Hongcai ;
Xiao, Fei ;
Ching, Chi Bun ;
Duan, Hongwei .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (05) :2801-2810
[8]   Graphene nanosheet: synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications [J].
Guo, Shaojun ;
Dong, Shaojun .
CHEMICAL SOCIETY REVIEWS, 2011, 40 (05) :2644-2672
[9]   Graphene-polymer hydrogels with stimulus-sensitive volume changes [J].
Hou, Chengyi ;
Zhang, Qinghong ;
Li, Yaogang ;
Wang, Hongzhi .
CARBON, 2012, 50 (05) :1959-1965
[10]   Flexible free-standing graphene-TiO2 hybrid paper for use as lithium ion battery anode materials [J].
Hu, Tao ;
Sun, Xiang ;
Sun, Hongtao ;
Yu, Mingpeng ;
Lu, Fengyuan ;
Liu, Changsheng ;
Lian, Jie .
CARBON, 2013, 51 :322-326
123456