Carboxylic acid effects on the size and catalytic activity of magnetite nanoparticles

被引：26

作者：

Hosseini-Monfared, Hassan ^{[1
]}

Parchegani, Fatemeh ^{[1
]}

Alavi, Sohaila ^{[1
]}

机构：

[1] Univ Zanjan, Dept Chem, Zanjan 45195313, Iran

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2015年 / 437卷

关键词：

Magnetite nanoparticles; Carboxylic acid; Epoxidation; Hydrogen peroxide; IRON-OXIDE NANOPARTICLES; HYDROGEN-PEROXIDE; ACETIC-ACID; HETEROGENEOUS CATALYSIS; ALKENE EPOXIDATION; OXIDATION; COMPLEXES; COPPER; FE3O4; NANOCRYSTALS;

D O I：

10.1016/j.jcis.2014.08.056

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：

Magnetite nanoparticles (Fe3O4-NPs) were successfully synthesized in diethylene glycol in the presence of carboxylic acids. They were characterized using XRD, SEM and FTIR. Carboxylic acid plays a critical role in determining the morphology, particle size and size distribution of the resulting particles. The results show that as-prepared magnetite nanoparticles are monodisperse and highly crystalline. The nanopartides can be easily dispersed in aqueous media and other polar solvents due to coated by a layer of hydrophilic polyol and carboxylic acid ligands in situ. Easily prepared Fe3O4-NPs have been shown to be an active, recyclable, and highly selective catalyst for the epoxidation of cyclic olefins with aqueous 30% H2O2. (c) 2014 Elsevier Inc. All rights reserved.

引用

页码：1 / 9

页数：9

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