Mesoporous Silica Sol-Gel as Catalyst for the Synthesis of Alkylpolyglucosides

Abstract:

The synthesis of alkylpolyglucosides involves condensation of decanol with dextrose in the presence of mesoporous silica sol-gel as a catalyst. In this study, mesoporous silica was produced using sol-gel technique by converting tetraethyl orthosilicate (TEOS) into silica. The mesoporous silica was characterized using BET surface area measurement and X-ray Photoelectron Spectroscopy surface analysis. The specific BET surface area was 794m²/g. From the XPS analysis, the Si2p binding energy is 103.7 eV while the O1s binding energy is 532.8eV indicating the formation of Si-O-Si bond which attributed to SiO₂. Mesoporous silica has been found efficient to be solid catalyst for synthesis alkylpolyglucosides and easy to be separated. The reaction was carried out 8 hours at 110°C-120°C under vacuum condition. The mass determination of alkylpoluglucosides has been achieved by ESI LC-MS/MS (ToF) positive-mode giving a mass peak at m/z = 343.21 corresponding to [M+⁺ of alkylmonoglucoside peak at retention time 11.0 min.

• Periodical: Advanced Materials Research (Volume 620)
• Pages: 446-452
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.620.446
• Online since: December 2012
• Authors: Izazi Azzahidah Amin, Mohd Ambar Yarmo, Nik Idris Nik Yusoff, Mohd Zahid Yusoff, Alifee Ayatillah
• Keywords: Alkylpolyglucosides, BET, Mesoporous Silica Sol-Gel, X-Ray Diffraction (XRD), X-Ray Photoelectron Spectroscopy (XPS)

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