Shape and Size Controlled Synthesis of Anatase Nanocrystals with the Assistance of Ionic Liquid

被引：37

作者：

Ding, Kunlun ^{[1
]}

Miao, Zhenjiang ^{[1
]}

Hu, Baoji ^{[1
]}

An, Guimin ^{[1
]}

Sun, Zhenyu ^{[1
]}

Han, Buxing ^{[1
]}

Liu, Zhimin ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China

来源：

LANGMUIR | 2010年 / 26卷 / 07期

关键词：

LOW-TEMPERATURE SYNTHESIS; PHASE-TRANSFORMATION; ORIENTED ATTACHMENT; TIO2; NANOPARTICLES; FACILE SYNTHESIS; PARTICLE-SIZE; PHOTOCATALYTIC ACTIVITY; HYDROTHERMAL SYNTHESIS; TO-RUTILE; TITANIA;

D O I：

10.1021/la903600q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report an ionic liquid (IL) assisted hydrothermal method to synthesize anatase TiO2 nanocrystals (NCs), in which TiCl4 was used as precursor, l-butyl-3-methylimidazolium chloride (bmim(+)Cl(-)) as IL, and F- or SO42- ions as phase transformation inhibitor. The surfactant-like nature of I L was found to play a key role in controlling the crystallization process via controlling the aggregation manner of the NCs. The fine-tuning abilities of the operating parameters of the bmim(+)Cl(-)/TiCl4/H2O system facilitated the controlling over the shape and size of TiO2 NCs. Phase-pure anatase monodisperse NCs with Various shape and size were controllably obtained. Moreover, the aggregation manners of anatase NCs were also studied, and it was demonstrated that the high concentration of HF or H2SO4 could result in aggregation of anatase NCs to form pseudo single crystals.

引用

页码：5129 / 5134

页数：6

共 73 条

[1] Role of synthesis method and particle size of nanostructured TiO2 on its photoactivity [J].

Almquist, CB ;

Biswas, P .

JOURNAL OF CATALYSIS, 2002, 212 (02) :145-156

[2] Ionic liquids for the convenient synthesis of functional nanoparticles and other inorganic nanostructures [J].

Antonietti, M ;

Kuang, DB ;

Smarsly, B ;

Yong, Z .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (38) :4988-4992

[3] Prediction of TiO2 nanoparticle phase and shape transitions controlled by surface chemistry [J].

Barnard, AS ;

Curtiss, LA .

NANO LETTERS, 2005, 5 (07) :1261-1266

[4] Anatase and rutile surfaces with adsorbates representative of acidic and basic conditions [J].

Barnard, AS ;

Zapol, P ;

Curtiss, LA .

SURFACE SCIENCE, 2005, 582 (1-3) :173-188

[5] Photoinduced reactivity of titanium dioxide [J].

Carp, O ;

Huisman, CL ;

Reller, A .

PROGRESS IN SOLID STATE CHEMISTRY, 2004, 32 (1-2) :33-177

[6]

Chemseddine A, 1999, EUR J INORG CHEM, P235, DOI 10.1002/(SICI)1099-0682(19990202)1999:2<235::AID-EJIC235>3.0.CO

[7]

2-N

[8] Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].

Chen, Xiaobo ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959

[9] Low-temperature synthesis of soluble and processable organic-capped anatase TiO2 nanorods [J].

Cozzoli, PD ;

Kornowski, A ;

Weller, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (47) :14539-14548

[10] The surface science of titanium dioxide [J].

Diebold, U .

SURFACE SCIENCE REPORTS, 2003, 48 (5-8) :53-229

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