Hydrothermal synthesis of mesostructured nanocrystalline TiO2 in an ionic liquid-water mixture and its photocatalytic performance

被引：57

作者：

Liu, Hong ^{[1
]}

Liang, Yuguang ^{[1
]}

Hu, Hongjiu ^{[2
]}

Wang, Mengyang ^{[1
]}

机构：

[1] Shanghai Univ, Dept Chem Engn, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Coll Sci, Shanghai 200072, Peoples R China

来源：

SOLID STATE SCIENCES | 2009年 / 11卷 / 09期

关键词：

TiO2; Mesoporous; Ionic liquid; Hydrothermal synthesis; Photocatalytic degradation; MESOPOROUS TIO2; SURFACE-AREA; NANOPARTICLES; MORPHOLOGY; MEMBRANES; CATALYSTS; RUTILE; ROUTE; OXIDE;

D O I：

10.1016/j.solidstatesciences.2009.06.011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Anatase mesostructured TiO2 nanocrystalline was prepared in a mixture of 1-butyl-3-methyl-imidazolium tetrafluoroborate (BMIM+BF4-) ionic liquid and water by a low temperature hydrothermal method. The obtained materials were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and N-2 adsorption-desorption. The existence of BMIM+BF4- enhanced the polycondensation and crystallization rate, which encouraged the formation of anatase crystal. The TiO2 particles were thermally very stable and thus resistant to anatase-rutile phase transformation during calcination at high temperatures. The anatase TiO2 showed high photocatalytic activity in the degradation of p-chlorophenol than that of the commercially available TiO2, Degussa P25. After 2 h reaction under the UV-irradiation of 250 W, the removing rate of p-chlorophenol was up to 96.3%. (C) 2009 Elsevier Masson SAS. All rights reserved.

引用

页码：1655 / 1660

页数：6

共 27 条

[1] 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

[2] Mesoporous [M]-MSU-x metallo-silicate catalysts by non-ionic polyethylene oxide surfactant templating acid [N0(N+)X-I+] and base (N0M+I-) catalysed pathways [J].

Bagshaw, SA ;

Kemmitt, T ;

Milestone, NB .

MICROPOROUS AND MESOPOROUS MATERIALS, 1998, 22 (1-3) :419-433

[3] A simple route for low-temperature synthesis of mesoporous and nanocrystalline anatase thin films [J].

Bosc, F ;

Ayral, A ;

Albouy, PA ;

Guizard, C .

CHEMISTRY OF MATERIALS, 2003, 15 (12) :2463-2468

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

Chen, Xiaobo ;

Mao, Samuel S. .

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

[5] Sol-gel preparation of mesoporous photocatalytic TiO2 films and TiO2/Al2O3 composite membranes for environmental applications [J].

Choi, H ;

Stathatos, E ;

Dionysiou, DD .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 63 (1-2) :60-67

[6] Nanocrystalline TiO2 photocatalytic membranes with a hierarchical mesoporous multilayer structure:: Synthesis, characterization, and multifunction [J].

Choi, Hyeok ;

Sofranko, Anna C. ;

Dionysiou, Dionysios D. .

ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (08) :1067-1074

[7] Photocatalytic activity of nanocrystalline TiO2 (brookite, rutile and brookite-based) powders prepared by thermohydrolysis of TiCl4 in aqueous chloride solutions [J].

Di Paola, Agatino ;

Cufalo, Giovanni ;

Addamo, Maurizio ;

Bellardita, Marianna ;

Campostrini, Renzo ;

Ischia, Marco ;

Ceccato, Riccardo ;

Palmisano, Leonardo .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2008, 317 (1-3) :366-376

[8] Transition-metal nanoparticles in imidazolium ionic liquids: Recycable catalysts for biphasic hydrogenation reactions [J].

Dupont, J ;

Fonseca, GS ;

Umpierre, AP ;

Fichtner, PFP ;

Teixeira, SR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (16) :4228-4229

[9] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[10]

*JOINT COMM POWD D, 211276 JOINT COMM PO

← 1 2 3 →