Subscribe Now Subscribe Today
Science Alert Home Journals at Science Alert For Authors For Subscribers Contact Us
   
Journal of Applied Sciences
  Year: 2010 | Volume: 10 | Issue: 24 | Page No.: 3199-3206
DOI: 10.3923/jas.2010.3199.3206
Post Synthetically Functionalized SBA-15 with Organosulfonic Acid and Sulfated Zirconia for Esterification of Glycerol to Monoglyceride
Lilis Hermida, Ahmad Zuhairi Abdullah and Abdul Rahman Mohamed

Abstract:
The pore structural properties and catalytic activity of SBA-15 post synthetically functionalized with organo sulfonic acid and with sulfated zirconia are presented. The SBA-15 incorporated with 3-(mercaptopropyl) trimethoxysilane (MPTMS) was prepared by post synthesis-grafting. Mild oxidation was carried out to obtain an acid catalyst (HSO3SBA-15). Whilst SBA-15 immobilized with sulfated zirconia was prepared by reacting SBA-15 with solution of zirconiumoxychloride and urea at 90°C to ZrO2-SBA-15. SZSBA-15 acid catalyst was obtained by sulfation of the ZrO2-SBA-15 with H2SO4 solution at room temperature. The catalysts were characterized by surface area analysis, EDX, SEM, Fourier transform infrared (FTIR) spectroscopy and pulse chemisorptions of NH3, followed by TPD of NH3. The organo sulfonic acid functionalized SBA-15 catalysts (HSO3SBA-15) were found to be more efficient solid acid catalysts for the esterification of glycerol with lauric acid to monolaurin at 160°C for 6 h using molar ratio of fatty acid to glycerol of 1:4. Excellent lauric acid conversion (94%) with high selectivity to monolaurin (70%) can be achieved using organo sulfonic acid functionalized SBA-15 catalyst with preparation condition of 20 h reflux time and MPTMS amount of 1 mL g-1 SBA-15.
 [Fulltext PDF]   [Fulltext HTML]   [XML: Abstract + References]   [References]   [View Citation]  [Report Citation]
How to cite this article:

Lilis Hermida, Ahmad Zuhairi Abdullah and Abdul Rahman Mohamed, 2010. Post Synthetically Functionalized SBA-15 with Organosulfonic Acid and Sulfated Zirconia for Esterification of Glycerol to Monoglyceride. Journal of Applied Sciences, 10: 3199-3206.

DOI: 10.3923/jas.2010.3199.3206

URL: http://scialert.net/abstract/?doi=jas.2010.3199.3206

 
COMMENT ON THIS PAPER
.
 
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 

                 home       |       journals        |       for authors       |       for subscribers       |       asci
          © Science Alert. All Rights Reserved