In situ surfactant removal from MCM-type mesostructures by ozone treatment

被引：46

作者：

Büchel, G ^{[1
]}

Denoyel, R ^{[1
]}

Llewellyn, PL ^{[1
]}

Rouquerol, J ^{[1
]}

机构：

[1] CNRS, Ctr Thermodynam & Microcalorimetrie, Grp MADIREL, F-13331 Marseille 3, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2001年 / 11卷 / 02期

关键词：

D O I：

10.1039/b005297n

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：

Surfactant removal from MCM-41 mesostructures using ozone produced by an ozone generator is reported. Traces of water are needed to start the degradation of the mesostructure. Ozone treatment of the mesostructure powder, containing traces of water, results in a highly exothermic reaction that cannot be controlled. Suspending the mesostructure in water and treating it with ozone results in mesoporous MCM-41 after 14 h. In addition, in situ ozone treatment of the as-prepared MCM-41 mesostructure in its mother liquor also results in mesoporous MCM-41. Ozone-treated samples have larger pores than traditionally calcined samples.

引用

页码：589 / 593

页数：5

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