Influence of platinum loading on photoluminescence of TiO2 powder

被引：41

作者：

Nakajima, H

Mori, T

Watanabe, M

机构：

[1] Natl Inst Mat Sci, Ecomat Ctr, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 96卷 / 01期

关键词：

D O I：

10.1063/1.1757649

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence (PL) and PL excitation spectra of pure and Pt-loaded TiO2 powders were measured at room temperature, and the influence of the Pt loading on PL was considered. We found a blueshift in the PL excitation band of the Pt loaded TiO2 powders and our results suggested that the enhancement of the charge separation efficiency in TiO2 by the Pt loading can be evaluated by PL spectroscopy. (C) 2004 American Institute of Physics.

引用

收藏

页码：925 / 927

页数：3

相关论文

共 12 条

[1] INSITU PHOTOLUMINESCENCE OF TIO2 AS A PROBE OF PHOTOCATALYTIC REACTIONS [J].

ANPO, M ;

TOMONARI, M ;

FOX, MA .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (21) :7300-7302

[2] Characterization of nanocomposite materials prepared via laser ablation of Pt/TiO2 bi-combinant targets [J].

Beck, KM ;

Sasaki, T ;

Koshizaki, N .

CHEMICAL PHYSICS LETTERS, 1999, 301 (3-4) :336-342

[3] TEMPERATURE-DEPENDENCE OF THE LUMINESCENCE OF TIO2 POWDER [J].

FORSS, L ;

SCHUBNELL, M .

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1993, 56 (06) :363-366

[4] Direct observation of a picosecond charge separation process in photoexcited platinum-loaded TiO2 particles by femtosecond diffuse reflectance spectroscopy [J].

Furube, A ;

Asahi, T ;

Masuhara, H ;

Yamashita, H ;

Anpo, M .

CHEMICAL PHYSICS LETTERS, 2001, 336 (5-6) :424-430

[5] CONVERSION OF CARBOHYDRATE INTO HYDROGEN FUEL BY A PHOTOCATALYTIC PROCESS [J].

KAWAI, T ;

SAKATA, T .

NATURE, 1980, 286 (5772) :474-476

[6] The enhancement of photodegradation efficiency using Pt-TiO2 catalyst [J].

Li, FB ;

Li, XZ .

CHEMOSPHERE, 2002, 48 (10) :1103-1111

[7] Near-infrared photoluminescence in titania:: Evidence for phonon-replica effect [J].

Montoncello, F ;

Carotta, MC ;

Cavicchi, B ;

Ferroni, M ;

Giberti, A ;

Guidi, V ;

Malagù, C ;

Martinelli, G ;

Meinardi, F .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (03) :1501-1505

[8] Influences of C1-C3 alcohols and purities of TiO2 powders on their photoluminescence properties at room temperature [J].

Nakajima, H ;

Itoh, K ;

Murabayashi, M .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2002, 75 (03) :601-606

[9] PHOTOCATALYTIC CONVERSION OF PRIMARY AMINES TO SECONDARY-AMINES AND CYCLIZATION OF POLYMETHYLENE-ALPHA,OMEGA-DIAMINES BY AN AQUEOUS SUSPENSION OF TIO2/PT [J].

NISHIMOTO, SI ;

OHTANI, B ;

YOSHIKAWA, T ;

KAGIYA, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (24) :7180-7182

[10] Factors governing the initial process of TiO2 photocatalysis studied by means of in-situ electron spin resonance measurements [J].

Nosaka, Y ;

Kishimoto, M ;

Nishino, J .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (50) :10279-10283