Synthesis, characterization and photocatalytic properties of titania-modified mesoporous silicate MCM-41

被引：95

作者：

Zheng, S ^{[1
]}

Gao, LA ^{[1
]}

Zhang, QH ^{[1
]}

Guo, JK ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2000年 / 10卷 / 03期

关键词：

D O I：

10.1039/a908799k

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：

A series of titania modified mesoporous silicate MCM-41 (MCM-TiO2) samples with variable Ti/Si ratios have been synthesized from tetrabutyltitanate and calcined MCM-41. The samples were characterized by powder X-ray diffraction (XRD), FTIR spectroscopy, thermal analysis (DTA-TG), nitrogen adsorption-desorption at 77 K, transmission electron microscopy (TEM), and solid state diffuse reflectance UV-VIS spectroscopy. It was found that tetrabutyltitanate cocondensation occurred with pendant OH groups of MCM-41 leading to Si-O-Ti bonds so modifying the inner pore surface of MCM-41 after hydrolysis and calcination. In the titania modified MCM-41 samples, although titania species were in tetrahedral rather than octahedral coordination which is predominant in crystalline titania, it still exhibited good photocatalytic activity for oxidizing phenol to carbon dioxide and water.

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页码：723 / 727

页数：5

相关论文

共 25 条

[1] IMPROVED PHOTOCATALYST OF TIO2/SIO2 PREPARED BY A SOL-GEL SYNTHESIS [J].

ANDERSON, C ;

BARD, AJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (24) :9882-9885

[2] Solution-phase grafting of titanium dioxide onto the pore surface of mesoporous silicates: Synthesis and structural characterization [J].

Aronson, BJ ;

Blanford, CF ;

Stein, A .

CHEMISTRY OF MATERIALS, 1997, 9 (12) :2842-2851

[3] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].

BECK, JS ;

VARTULI, JC ;

ROTH, WJ ;

LEONOWICZ, ME ;

KRESGE, CT ;

SCHMITT, KD ;

CHU, CTW ;

OLSON, DH ;

SHEPPARD, EW ;

MCCULLEN, SB ;

HIGGINS, JB ;

SCHLENKER, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843

[4] Immobilisation of TiO2 powder for the treatment of polluted water [J].

Byrne, JA ;

Eggins, BR ;

Brown, NMD ;

McKinney, B ;

Rouse, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 17 (1-2) :25-36

[5] Characterization of tetrahedral vanadium-containing MCM-41 molecular sieves synthesized at room temperature [J].

Chatterjee, M ;

Iwasaki, T ;

Hayashi, H ;

Onodera, Y ;

Ebina, T ;

Nagase, T .

CHEMISTRY OF MATERIALS, 1999, 11 (05) :1368-1375

[6] SYNTHESIS OF AN ULTRALARGE PORE TITANIUM SILICATE ISOMORPHOUS TO MCM-41 AND ITS APPLICATION AS A CATALYST FOR SELECTIVE OXIDATION OF HYDROCARBONS [J].

CORMA, A ;

NAVARRO, MT ;

PARIENTE, JP .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (02) :147-148

[7] The synthesis of micrometer- and submicrometer-size spheres of ordered mesoporous oxide MCM-41 [J].

Grun, M ;

Lauer, I ;

Unger, KK .

ADVANCED MATERIALS, 1997, 9 (03) :254-&

[8]

HENLEIN A, 1989, CHEM REV, V89, P1861

[9] Preparation of TiO2-based powders with high photocatalytic activities [J].

Kasuga, T ;

Hiramatsu, M ;

Hirano, M ;

Hoson, A ;

Oyamada, K .

JOURNAL OF MATERIALS RESEARCH, 1997, 12 (03) :607-609

[10] Stabilization of mesoporous molecular sieves by trimethylsilylation [J].

Koyano, KA ;

Tatsumi, T ;

Tanaka, Y ;

Nakata, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (46) :9436-9440