Application of Lecithin-templated Mesoporous Silica Microparticles for the Specific and Selective Removal of Phospholipids

  • Lee Wah Lim Division of Materials Engineering, Graduate School of Engineering, Gifu University, Japan
  • David Marikah Division of Materials Engineering, Graduate School of Engineering, Gifu University, Japan
  • Toyohide Takeuchi Division of Materials Engineering, Graduate School of Engineering, Gifu University, Japan
Keywords: Phospholipid, Mesoporous silica, Column breakthrough, Adsorption, Algae bio oil

Abstract

Phospholipids are among the many components of algae bio oil, and they harbor the trans-esterification process by poisoning the catalyst, hence the need for they removal prior to this process is crucial. Mesoporous silica materials are feasible and viable candidates for the selective removal of phospholipids by tailoring their surface morphology using different surfactants (templates) for specific and selective adsorption. In this study, the adsorption of phospholipids using lecithin template mesoporous silica microparticles (Leci-MSM) was investigated. Comparative studies using cetyltriammoniumbromide mesoporous microparticles (CTAB-MSM) were also carried out. Both Leci-MSM and CTAB-MSM were synthesized via sol-gel process, packed into mini columns and used for column breakthrough adsorption studies. Scanning electron micrographs revealed a particle size of 5.0 µm for Leci-MSM and 2.95 µm for CTAB-MSM. Textural analysis by BET and BJH exhibited a surface area of 425 and 1210 m2/g for Leci-MSM and CTAB-MSM, respectively. A pore volume of 1.59 and 2.77 cc/g for Leci-MSM and CTAB-MSM, respectively, were also obtained. In addition, Leci-MSM revealed a column breakthrough volume of 28 mL at 41 min, while for the CTAB-MSM was 46 mL at 53 min. The actual adsorption capacity recorded by Leci-MSM was 11.34 mg/g and 8.71 mg/g for CTAB-MSM.

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Lecithin was used as the template, in comparison to the conventional cetyltriammonium salts (CTAB was used in this study), in synthesizing mesoporous silica microparticles for the selective adsorption of phospholipids. The synthesized materials revealed good textural and porosity properties, which found to be effective in dictating the phospholipids quantities adsorbed during the column breakthrough studies.
Published
2019-08-31
How to Cite
Lim, L. W., Marikah, D., & Takeuchi, T. (2019). Application of Lecithin-templated Mesoporous Silica Microparticles for the Specific and Selective Removal of Phospholipids. Journal of the Indonesian Chemical Society, 2(1), 60. https://doi.org/10.34311/jics.2019.02.1.60