Incorporation of nano-sized magnetite particles into mesoporous materials via -COOH groups

Kanagasabai Muruganandam Ponvel, Yo Han Kim, Chang Ha Lee

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Nano-sized magnetite (NSM) particles incorporated into mesoporous silica were synthesized by surface-functionalized mesoporous materials. Mesocellular foam functionalized by carboxylic groups (CA-MCF) was prepared using a grafting method with 4-(triethoxysilyl) butyronitrile as an organosilane agent. After treating the sample with sulfuric acid, which hydrolyzes the -CN to -COOH groups, the functionalized surface of the mesoporous silica was confirmed by infrared radiation (IR) spectroscopy. Nano-sized magnetite particles of ∼7 nm were then incorporated into the silica mesopores. It was expected that the carboxylic groups of the mesoporous materials would bind to the nanoparticles. The prepared particles were characterized by Brunauer-Emmett-Teller (BET), X-ray diffractometer (XRD), and transmission electron microscopy (TEM) analyses. The iron content and magnetic properties of the synthesized particles were studied using inductively coupled plasma (ICP) and a magnetometer, respectively.

Original languageEnglish
Pages (from-to)397-401
Number of pages5
JournalMaterials Chemistry and Physics
Volume122
Issue number2-3
DOIs
Publication statusPublished - 2010 Aug 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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