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One-pot synthesis and characterization of HMS silica carrying Disperse-Red-1 (DR1) covalently bonded to the inner surface

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Published copy (DOI)

Author(s)

  • B Onida
  • L Borello
  • S Fiorilli
  • B Bonelli
  • C Barolo
  • G Viscardi
  • D J Macquarrie
  • E Garrone

Department/unit(s)

Publication details

JournalComptes Rendus Chimie
DatePublished - 2005
Issue number3-4
Volume8
Number of pages7
Pages (from-to)655-661
Original languageEnglish

Abstract

Through a one-step procedure, covalent bonding of Disperse-Red-1 (DR1) dye to the internal surface of HMS silica has been achieved, leading to anchored molecules freely accessible to gases. Template removal by different solvents yields surface with different polarities, which affect the optical properties of DR1. This effect is dramatic when extraction is carried out in refluxing ethanol, because ethoxylation of the silica surface occurs. (c) 2005 Academie des sciences. Published by Elsevier SAS. All rights reserved.

    Research areas

  • DR1, HMS, mesoporous silica, dye, co-condensation, functionalization, MESOPOROUS MOLECULAR-SIEVES, ORMOSILS THIN-FILMS, SOL-GEL SILICA, SOLVATOCHROMIC DYES, OPTICAL-PROPERTIES, MCM-41, ADSORPTION, DIPOLARITY/POLARIZABILITY, CHROMOPHORES, GENERATION

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