Polymer Gel Templating of Free-Standing Inorganic Monoliths for Photocatalysis

被引：19

作者：

Fan, Xiaojuan ^{[1
,2
]}

Fei, Honghan ^{[1
]}

Demaree, David H. ^{[1
]}

Brennan, Daniel P. ^{[1
]}

John, Jessica M. St. ^{[1
]}

Oliver, Scott R. J. ^{[1
]}

机构：

[1] Univ Calif Santa Cruz, Dept Chem & Biochem, Santa Cruz, CA 95064 USA

[2] Marshall Univ, Dept Phys & Phys Sci, Huntington, WV 25755 USA

来源：

LANGMUIR | 2009年 / 25卷 / 10期

关键词：

METAL-ORGANIC FRAMEWORKS; HYDROGEN STORAGE; TIO2; FILMS;

D O I：

10.1021/la8029837

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have developed a simple, low-cost process to fabricate free-standing porous metal oxide monoliths. Various swollen polymers and hydrogels possessing all open network structure arc infiltrated with pure liquid metal alkoxide. Hydrolysis followed by chemical or thermal degradation of the polymer leads to bulk porous monoliths, TiO2 and SiO2 as initial examples. The titania solids were subsequently employed as photocatalysts under UV light and monitored for adsorption. The materials show efficient reusable photocatalytic ability as compared to pure-phase nanoparticle titanium oxide.

引用

页码：5835 / 5839

页数：5

共 23 条

[1]

ALVIN MA, 1991, AM CERAM SOC BULL, V70, P1491

[2] STRUCTURAL STUDIES OF ORGANIC GELS BY SEM [J].

BLANK, Z ;

REIMSCHUESSEL, AC .

JOURNAL OF MATERIALS SCIENCE, 1974, 9 (11) :1815-1822

[3] TiO2 anatase-based membranes with hierarchical porosity and photocatalytic properties [J].

Bosc, Florence ;

Lacroix-Desmazes, Patrick ;

Ayral, Andre .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 304 (02) :545-548

[4]

Brody, 2005, BIOTECHNIQUES, V38, P60

[5] Single-molecule measurements of trapped and migrating circular DNA during electrophoresis in agarose gels [J].

Cole, Kenneth D. ;

Gaigalas, Adolfas ;

Akerman, Bjorn .

ELECTROPHORESIS, 2006, 27 (22) :4396-4407

[6]

Garcia R. B., 2000, POLIMEROS, V10, P155, DOI DOI 10.1590/S0104-14282000000300012

[7] Photoefficiency and optical, microstructural, and structural properties of TiO2 thin films used as photoanodes [J].

Gracia, F ;

Holgado, JP ;

González-Elipe, AR .

LANGMUIR, 2004, 20 (05) :1688-1697

[8] SOME PROBLEMS IN THE PHYSICAL AND CHEMICAL CHARACTERIZATION OF FUNCTIONALIZED SUPPORTS [J].

GUYOT, A .

REACTIVE POLYMERS, 1989, 10 (2-3) :113-129

[9] Chemical structure of photocatalytic active sites in nanosize TiO2 [J].

Hsiung, Tung Li ;

Wang, H. Paul ;

Lin, Hong Ping .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2008, 69 (2-3) :383-385

[10]

Hu XF, 2005, J INORG MATER, V20, P1463

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