Origin of Low Photocatalytic Activity of Rutile TiO2

被引：49

作者：

Jung, Hyun Suk ^{[2
]}

Kim, Hyungtak ^{[1
]}

机构：

[1] Hongik Univ, Sch Elect & Elect Engn, Seoul 121791, South Korea

[2] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea

来源：

ELECTRONIC MATERIALS LETTERS | 2009年 / 5卷 / 02期

关键词：

Photocatalyst; Nanoparticle; Rutile; Anatase; Charge recombination; TRANSFORMATION;

D O I：

10.3365/eml.2009.06.073

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rutile TiO2 nanoparticles were synthesized using the colloidal sol-gel process and their photocatalytic properties were characterized in comparison with anatase TiO2 nanoparticles. The synthesized rutile nanoparticles were found to possess higher surfaces area than the anatase nanoparticles and to exhibit lower photocatalytic activities, demonstrating that rutile TiO2 has intrinsically low photocatalytic properties. The photoluminescence (PL) study suggested that the inferior photocatalytic activity of rutile nanoparticles is correlated with the intrinsic recombination of photogenerated electron-hole pairs.

引用

页码：73 / 76

页数：4

共 12 条

[1] In situ observation of the stability of anatase nanoparticles and their transformation to rutile in an acidic solution [J].

Jung, HS ;

Shin, H ;

Kim, JR ;

Kim, JY ;

Hong, KS .

LANGMUIR, 2004, 20 (26) :11732-11737

[2]

Kaneko M., 2002, PHOTOCATALYSIS

[3] CRYSTAL-STRUCTURES OF TIO2 THIN COATINGS PREPARED FROM THE ALKOXIDE SOLUTION VIA THE DIP-COATING TECHNIQUE AFFECTING THE PHOTOCATALYTIC DECOMPOSITION OF AQUEOUS ACETIC-ACID [J].

KATO, K ;

TSUZUKI, A ;

TAODA, H ;

TORII, Y ;

KATO, T ;

BUTSUGAN, Y .

JOURNAL OF MATERIALS SCIENCE, 1994, 29 (22) :5911-5915

[4] EFFECT OF PEPTIZATION ON DENSIFICATION AND PHASE-TRANSFORMATION BEHAVIOR OF SOL GEL-DERIVED NANOSTRUCTURED TITANIA [J].

KUMAR, KNP ;

KUMAR, J ;

KEIZER, K .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (05) :1396-1400

[5] Photocatalysis and hydrophilicity of doped TiO2 thin films [J].

Lee, YC ;

Hong, YP ;

Lee, HY ;

Kim, H ;

Jung, YJ ;

Ko, KH ;

Jung, HS ;

Hong, KS .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 267 (01) :127-131

[6] Effects of Anodization Growth of TiO2-Nanotube Array Membrane on Photo-conversion Efficiency of Dye-Sensitized Solar Cell [J].

Park, Min-Woo ;

Chun, Ki-Young .

ELECTRONIC MATERIALS LETTERS, 2009, 5 (01) :7-11

[7] KINETICS OF ANATASE-RUTILE TRANSFORMATION [J].

SHANNON, RD ;

PASK, JA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1965, 48 (08) :391-&

[8] PHOTOCATALYTIC ACTIVITY OF TIO2 FILM-COATED ON INTERNAL LIGHTGUIDE [J].

TADA, H ;

HONDA, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (10) :3438-3443

[9]

VOINOV M, 1997, HETEROGENEOUS PHOTOC, V1

[10]

Won S, 2008, ELECTRON MATER LETT, V4, P29

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