Photocatalytic activity of TiO2 prepared at low temperature by a photo-assisted sol-gel method

被引：46

作者：

Guan, ZS ^{[1
]}

Zhang, XT ^{[1
]}

Ma, Y ^{[1
]}

Cao, YA ^{[1
]}

Yao, JN ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH | 2001年 / 16卷 / 04期

关键词：

D O I：

10.1557/JMR.2001.0128

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiO2 nanocrystals were prepared by a photo-assisted sol-gel process in which tetrabutoxide titanate was hydrolyzed in acidic medium under ultraviolet irradiation. X-ray diffraction and Raman spectra showed that the as-prepared TiO2 particles without further annealing were well-crystallized anatase. Such TiO2 particles were easily immobilized on dacron cloth and showed very high photocatalytic activity. In contrast, TiO2 particles were ill crystallized and showed lower activity when no light was introduced under otherwise equal conditions.

引用

页码：907 / 909

页数：3

共 15 条

[1]

FUJISHIMA A, 1999, TIO2 PHOTOCATALYSIS, P46

[2] Alternative modification methods for sol-gel coatings of silica, titania and silica-titania using ultraviolet irradiation and water vapor [J].

Imai, H ;

Hirashima, H ;

Awazu, K .

THIN SOLID FILMS, 1999, 351 (1-2) :91-94

[3] ION-BEAM-INDUCED DENSIFICATION OF ZIRCONIA SOL-GEL THIN-FILMS [J].

LEVINE, TE ;

KEDDIE, JL ;

REVESZ, P ;

MAYER, JW ;

GIANNELIS, EP .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (05) :1369-1379

[4]

MANESS PC, 1999, APPL ENVIRON MICROB, V65, P4039

[5]

MATSUDA A, 1994, NIPPON SERAM KYO GAK, V102, P330, DOI 10.2109/jcersj.102.330

[6] Photocatalytic activity of amorphous-anatase mixture of titanium(IV) oxide particles suspended in aqueous solutions [J].

Ohtani, B ;

Ogawa, Y ;

Nishimoto, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (19) :3746-3752

[7] TiO2-assisted photodegradation of dyes:: A study of two competitive primary processes in the degradation of RB in an aqueous TiO2 colloidal solution [J].

Qu, P ;

Zhao, JC ;

Shen, T ;

Hidaka, H .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 1998, 129 (2-3) :257-268

[8] EFFECT OF CRYSTALLINITY OF TIO2 ON ITS PHOTOCATALYTIC ACTION [J].

TANAKA, K ;

CAPULE, MFV ;

HISANAGA, T .

CHEMICAL PHYSICS LETTERS, 1991, 187 (1-2) :73-76

[9] Size-selective photoetching of nanocrystalline semiconductor particles [J].

van Dijken, A ;

Janssen, AH ;

Smitsmans, MHP ;

Vanmaekelbergh, D ;

Meijerink, A .

CHEMISTRY OF MATERIALS, 1998, 10 (11) :3513-3522

[10] Size selective photoetching of nanocrystalline CdS particles [J].

vanDijken, A ;

Vanmaekelbergh, D ;

Meijerink, A .

CHEMICAL PHYSICS LETTERS, 1997, 269 (5-6) :494-499

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