Synthesis of Visible-Light Responsive Graphene Oxide/TiO2 Composites with p/n Heterojunction

被引：813

作者：

Chen, Chao ^{[1
,2
]}

Cai, Weimin ^{[1
,2
,3
]}

Long, Mingce ^{[3
]}

Zhou, Baoxue ^{[1
,2
,3
]}

Wu, Yahui ^{[1
,2
]}

Wu, Deyong ^{[3
]}

Feng, Yujie ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Sch Municipal & Environm Engn, Dept Environm Sci & Engn, Harbin 150090, Peoples R China

[2] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

来源：

ACS NANO | 2010年 / 4卷 / 11期

基金：

中国国家自然科学基金;

关键词：

graphene oxide; titanium dioxide; p/n heterojunction; visible light; photocatalysis; METAL NANOPARTICLES; ANCHORING SEMICONDUCTOR; GRAPHITE; ELECTRODES; PARTICLES; ARRAYS; FILM; XPS;

D O I：

10.1021/nn102130m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Graphene oxide/TiO2 composites were prepared by,using TiCl3 and graphene oxide as reactants The concentration of graphene oxide in starting solution played an important role in photoelectronic and photocatalytic performance of graphene oxide/TiO2 composites Either a p type or n type semiconductor was formed by graphene oxide in graphene oxide/TiO2 composites These semiconductors could be excited by visible light with wavelengths longer than 510 nm and acted as sensitizer in graphene oxide/TiO2 composites Visible light driven photocatalytic performance of graphene oxide/TiO2 composites in degradation of methyl orange was also studied Crystalline quality and chemical states of carbon elements from graphene oxide in graphene oxide/TiO2 composites depended on the concentration of graphene oxide in the starting solution This study shows a possible way to fabricate graphene oxide/semiconductor composites with different properties by using a tunable semiconductor conductivity type of graphene oxide

引用

页码：6425 / 6432

页数：8

共 49 条

[1] Work functions and surface functional groups of multiwall carbon nanotubes [J].

Ago, H ;

Kugler, T ;

Cacialli, F ;

Salaneck, WR ;

Shaffer, MSP ;

Windle, AH ;

Friend, RH .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (38) :8116-8121

[2] Modeling of graphite oxide [J].

Boukhvalov, D. W. ;

Katsnelson, M. I. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (32) :10697-10701

[3] Carbon-Based Field-Effect Transistors for Nanoelectronics [J].

Burghard, Marko ;

Klauk, Hagen ;

Kern, Klaus .

ADVANCED MATERIALS, 2009, 21 (25-26) :2586-2600

[4] Preparation, characterization and visible-light activity of carbon modified TiO2 with two kinds of carbonaceous species [J].

Chen, Chao ;

Long, Mingce ;

Zeng, Hui ;

Cai, Weimin ;

Zhou, Baoxue ;

Zhang, Jingyi ;

Wu, Yahui ;

Ding, Dawei ;

Wu, Deyong .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2009, 314 (1-2) :35-41

[5] Li-ion batteries from LiFePO4 cathode and anatase/graphene composite anode for stationary energy storage [J].

Choi, Daiwon ;

Wang, Donghai ;

Viswanathan, Vish V. ;

Bae, In-Tae ;

Wang, Wei ;

Nie, Zimin ;

Zhang, Ji-Guang ;

Graff, Gordon L. ;

Liu, Jun ;

Yang, Zhenguo ;

Duong, Tien .

ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (03) :378-381

[6] Substrate-interface interactions between carbon nanotubes and the supporting substrate [J].

Czerw, R ;

Foley, B ;

Tekleab, D ;

Rubio, A ;

Ajayan, PM ;

Carroll, DL .

PHYSICAL REVIEW B, 2002, 66 (03) :334081-334084

[7] Monitoring dopants by Raman scattering in an electrochemically top-gated graphene transistor [J].

Das, A. ;

Pisana, S. ;

Chakraborty, B. ;

Piscanec, S. ;

Saha, S. K. ;

Waghmare, U. V. ;

Novoselov, K. S. ;

Krishnamurthy, H. R. ;

Geim, A. K. ;

Ferrari, A. C. ;

Sood, A. K. .

NATURE NANOTECHNOLOGY, 2008, 3 (04) :210-215

[8] Perspectives on Carbon Nanotubes and Graphene Raman Spectroscopy [J].

Dresselhaus, Mildred S. ;

Jorio, Ado ;

Hofmann, Mario ;

Dresselhaus, Gene ;

Saito, Riichiro .

NANO LETTERS, 2010, 10 (03) :751-758

[9] Chemically Derived Graphene Oxide: Towards Large-Area Thin-Film Electronics and Optoelectronics [J].

Eda, Goki ;

Chhowalla, Manish .

ADVANCED MATERIALS, 2010, 22 (22) :2392-2415

[10] XPS study of copper-doped carbon aerogels [J].

Fu, RW ;

Yoshizawa, N ;

Dresselhaus, MS ;

Dresselhaus, G ;

Satcher, JH ;

Baumann, TF .

LANGMUIR, 2002, 18 (26) :10100-10104

← 1 2 3 4 5 →