Facile synthesis of porous manganese oxide K-OMS-2 materials and their catalytic activity for formaldehyde oxidation

被引：109

作者：

Tian, Hua ^{[1
,2
]}

He, Junhui ^{[1
,2
]}

Zhang, Xiaodan ^{[1
,2
]}

Zhou, Li ^{[1
,2
]}

Wang, Donghui ^{[3
]}

机构：

[1] Chinese Acad Sci, Funct Nanomat Lab, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Key Lab Photochem Convers & Optoelect Mat, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

[3] Res Inst Chem Def, Beijing 100083, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2011年 / 138卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

Manganese oxide; K-OMS-2; Cryptomelane; Formaldehyde oxidation; OCTAHEDRAL MOLECULAR-SIEVES; PHOTOCATALYTIC DEGRADATION; ROOM-TEMPERATURE; INDOOR AIR; DECOMPOSITION; PERFORMANCE; REMOVAL; METAL; OMS-2; MICROSTRUCTURES;

D O I：

10.1016/j.micromeso.2010.09.022

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Porous manganese oxide K-OMS-2 nanomaterials were successfully synthesized by a simple low-temperature method. Data collected from characterization methods affirmed the cryptomelane-type manganese oxide octahedral molecular sieve (OMS-2). With increase of reaction temperature, the nanoparticle morphology of K-OMS-2 with an average diameter of ca. 40 nm evolved into nanorod morphology with a diameter of ca. 40 nm and lengths of 50-500 nm. Results of catalytic tests revealed that K-OMS-2 nanoparticles show rather higher catalytic activity for complete oxidation of formaldehyde than K-OMS-2 nanorods. This simple, inexpensive, and environmentally friendly method may have the potential of being used in scaled-up of K-OMS-2 materials. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：118 / 122

页数：5

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