Preparation and characterization of carbamoylphosphonate(CMPO) silane grafted on various mesoporous silicas

Bob Jin Kwon, Ja Yun Ku, Kook Hyun Yu, Ji Eun Ko, Hyun Jung

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The carbamoylphosphosphonate silane (CMPO analogue; 2-(diphenylphosphoryl)-N-(3-(triethoxysilyl)propyl) acetamide) modified mesoporous silica was prepared via a post-synthesis grafting method for the effective purification of rare earth elements. The guest CMPO analogue was synthesized by direct coupling reaction of 2-(diphenylphosphoryl) acetic acid and 3-(triethoxysilyl)propan-1-amine. Various mesoporous silicates such as MCM-41, SBA-15, or amorphous silica nanoparticles were adopted as host materials. The resulting surface-modified mesoporous materials were characterized with respect to their structural integrity, surface area, and pore size and the concentration of the CMPO silane species. These CMPO functionalized periodic mesostructured silicates offer the potential of applications as catalysts, sensors, or environmental sorbents.

Original languageEnglish
Pages (from-to)663-668
Number of pages6
JournalJournal of Physics and Chemistry of Solids
Volume71
Issue number4
DOIs
StatePublished - Apr 2010

Keywords

  • A. microporous materials
  • B. chemical synthesis
  • C. X-ray diffraction

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