Study on the effect of different acids on the structure and photocatalytic activity of mesoporous titania

被引：28

作者：

Ao, Yanhui ^{[1
,2
]}

Xu, Jingjing ^{[4
]}

Fu, Degang ^{[3
]}

机构：

[1] Hohai Univ, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Peoples R China

[2] Hohai Univ, Coll Environm Sci & Engn, Nanjing 210098, Peoples R China

[3] Southeast Univ, State Key Lab Bioelect, Nanjing 210096, Peoples R China

[4] Nanjing Univ Informat Sci & Technol, Coll Environm Sci & Engn, Nanjing 210044, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2009年 / 256卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Mesoporous structure; Titania; Sol-gel; Mechanism; Photocatalysis; VISIBLE-LIGHT IRRADIATION; TIO2; PARTICLES; SOL; DEGRADATION; ADSORPTION; NANOCRYSTALLITES; SILICA; FILMS; OXIDE;

D O I：

10.1016/j.apsusc.2009.08.008

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：

Nanocrystalline mesoporous titania was synthesized via a combined sol-gel process with surfactant-assisted templating method using cetyltrimethyl ammonium bromide (CTAB) as the structure-directing agent. The process was catalyzed by different acid (hydrochloric acid, nitric acid, sulfuric acid, or phosphoric acid). The prepared samples were characterized by XRD, TEM, BET and FT-IR. The photocatalytic activity of the samples was determined by degradation of phenol in aqueous solution. Results showed that different acid had different effect on the structure and crystal phase of the samples. The sample adjusted by phosphoric acid showed highest surface area and photocatalytic activity. The formation mechanism of the samples catalyzed by different acid was also discussed. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：239 / 245

页数：7

共 28 条

[1]

ANDREW M, 1997, J PHOTOCH PHOTOBIO A, V108, P1

[2] Stabilisation of mesoporous TiO2 by different bases influencing the photocatalytic activity [J].

Beyers, E. ;

Cool, P. ;

Vansant, E. F. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2007, 99 (1-2) :112-117

[3] 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

[4] Effects of templates on the structure, stability and photocatalytic activity of mesostructured TiO2 [J].

Dai, Q ;

Shi, LY ;

Luo, YG ;

Blin, JL ;

Li, D ;

Yuan, CW ;

Su, BL .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2002, 148 (1-3) :295-301

[5]

Fujishima A., 2000, J. Photochem. Photobiol. C: Photochem. Rev., V1, P1, DOI [10.1016/S1389-5567(00)00002-2, DOI 10.1016/S1389-5567(00)00002-2]

[6]

HOFFMANN MR, 1995, CHEM REV, V95, P96

[7] Mesoporous electrodes having tight agglomeration of single-phase anatase TiO2 nanocrystallites:: Application to dye-sensitized solar cells [J].

Kambe, S ;

Murakoshi, K ;

Kitamura, T ;

Wada, Y ;

Yanagida, S ;

Kominami, H ;

Kera, Y .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2000, 61 (04) :427-441

[8] Preparation and characterization of sol-gel derived mesoporous titania spheroids [J].

Khalil, KMS ;

Zaki, MI .

POWDER TECHNOLOGY, 2001, 120 (03) :256-263

[9] Structural and morphological control of cationic surfactant-templated mesoporous silica [J].

Lin, HP ;

Mou, CY .

ACCOUNTS OF CHEMICAL RESEARCH, 2002, 35 (11) :927-935

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

LINSEBIGLER, AL ;

LU, GQ ;

YATES, JT .

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

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