Green synthesis of TiO2 nanocrystals with improved photocatalytic activity by ionic-liquid assisted hydrothermal method

被引：27

作者：

Wang, Bin ^{[1
,2
]}

Guo, Lingju ^{[1
]}

He, Meng ^{[1
]}

He, Tao ^{[1
]}

机构：

[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 24期

关键词：

ANATASE TIO2; SURFACE FLUORINATION; MICROSPHERES; FACETS; NANOPARTICLES; DEGRADATION; PERCENTAGE; NANOSHEETS; TITANIA; RUTILE;

D O I：

10.1039/c3cp50862e

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：

Owing to potential industrial applications and fundamental significance, tailored synthesis of well-defined anatase TiO2 nanocrystals with exposed highly reactive {001} facets has stimulated great research interest. In this work, surface-fluorinated anatase TiO2 nanocrystals have been successfully prepared by using an ionic liquid (IL) assisted hydrothermal synthetic route. TiCl4 is used as precursor, and 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]+[ BF4](-)) as morphology-controlling agent. The anion of the IL plays a key role in controlling the crystallization process via a dissolution-recrystallization process. Compared with the benchmark material Degussa P25, the fluorinated anatase TiO2 nanocrystals exhibit superior photocatalytic activity.

引用

页码：9891 / 9898

页数：8

共 50 条

[11]

Joo J, 2011, NAT MATER, V10, P596, DOI [10.1038/nmat3069, 10.1038/NMAT3069]

[12] Direct low-temperature synthesis of rutile nanostructures in ionic liquids [J].

Kaper, Helena ;

Endres, Frank ;

Djerdj, Igor ;

Antonietti, Markus ;

Smarsly, Bernd M. ;

Maier, Joachim ;

Hu, Yong-Sheng .

SMALL, 2007, 3 (10) :1753-1763

[13] Recent developments in titanium oxide-based photocatalysts [J].

Kitano, Masaaki ;

Matsuoka, Masaya ;

Ueshima, Michio ;

Anpo, Masakazu .

APPLIED CATALYSIS A-GENERAL, 2007, 325 (01) :1-14

[14] Real-Time Imaging of Pt3Fe Nanorod Growth in Solution [J].

Liao, Hong-Gang ;

Cui, Likun ;

Whitelam, Stephen ;

Zheng, Haimei .

SCIENCE, 2012, 336 (6084) :1011-1014

[15] PHOTOCATALYSIS ON TIO2 SURFACES - PRINCIPLES, MECHANISMS, AND SELECTED RESULTS [J].

LINSEBIGLER, AL ;

LU, GQ ;

YATES, JT .

CHEMICAL REVIEWS, 1995, 95 (03) :735-758

[16] Crystal facet engineering of semiconductor photocatalysts: motivations, advances and unique properties [J].

Liu, Gang ;

Yu, Jimmy C. ;

Lu, Gao Qing ;

Cheng, Hui-Ming .

CHEMICAL COMMUNICATIONS, 2011, 47 (24) :6763-6783

[17] Anatase TiO2 with Dominant High-Energy {001} Facets: Synthesis, Properties, and Applications [J].

Liu, Shengwei ;

Yu, Jiaguo ;

Jaroniec, Mietek .

CHEMISTRY OF MATERIALS, 2011, 23 (18) :4085-4093

[18] Tunable Photocatalytic Selectivity of Hollow TiO2 Microspheres Composed of Anatase Polyhedra with Exposed {001} Facets [J].

Liu, Shengwei ;

Yu, Jiaguo ;

Jaroniec, Mietek .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (34) :11914-11916

[19] Fluorine ions-mediated morphology control of anatase TiO2 with enhanced photocatalytic activity [J].

Lv, Kangle ;

Cheng, Bei ;

Yu, Jiaguo ;

Liu, Gang .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (16) :5349-5362

[20] (Bi, C and N) codoped TiO2 nanoparticles [J].

Lv, Kangle ;

Zuo, Housong ;

Sun, Jie ;

Deng, Kejian ;

Liu, Songcui ;

Li, Xiaofang ;

Wang, Duoyuan .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 161 (01) :396-401

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