Synthesis of porous silica by co-micelle emulsion templating technique using PEG/acrylamide and 2–(acryloyloxy)–N,N,N–trimethylethanaminium chloride/acrylamide as templates

ผู้แต่ง

  • Iman Abdullah Department of Chemistry, FMIPA, University of Indonesia
  • Widyastuti Samadi Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia
  • Arvinda Widyana Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia
  • David Chandra Pandapotan Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia
  • Ridla Bakri Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia

คำสำคัญ:

Porous silica, Co-MET, PEG, 2–(acryloyloxy)–N,N,N–trimethylethanaminium chloride

บทคัดย่อ

Co-micelle emulsion templating (co-MET) technique is a new method to synthesize uniform and ordered porous silica from tetraethylortosilicate precursor using double polymer as templates. In this study, co-MET technique was conducted by varying template type (namely PEG/acrylamide and 2–(acryloyloxy)–N,N,N–trimethylethanaminium chloride/acrylamide) and percentage of polymer (2.5%, 5%, 10%, 15% and 20% for PEG and 0.5%, 1%, 2.5%, 5%, 10% for 2–(acryloyloxy)–N,N,N–trimethylethanaminium chloride). The resulting porous silica were then characterized by SEM-EDS, BET and XRD to investigates the pore character and structure of silica. Based on SEM-EDS and BET analysis, it is shown that the amount and the type of polymer gave a significant effect to the structure formation of the porous silica. Cationic polymer as templates gave higher surface area and uniform pore size than neutral polymer templates. Polymer concentration of 2.5% gave the best result for both template types, resulting an interconnected mesopore silica with surface area of 615 m2/g for PEG and 1137 m2/g for 2–(acryloyloxy)–N,N,N–trimethylethanaminium chloride.

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เอกสารอ้างอิง

Jia, L., Zhang, S., Gu, F., Ping, Y., Guo, X., Zhong, Z. and Su, F. (2012). Highly selective gas phase oxidation of benzyl alcohol to benzaldehyde over silver-containing hexagonal mesoporous silica. Microporous and Mesoporous Materials. 149 : 158-165.

Kisler, J.M., Dahler, A., Stevens, G.W. and O’Connor, A.J. (2001). Separation of biological molecules using mesoporous molecular sieves. Microporous and Mesoporous Materials. 44-45 : 769-774.

Lee, B., Kim, Y., Lee, H. and Yi, J. (2001). Synthesis of functionalized porous silicas via templating method as heavy metal ion adsorbents : the introduction of surface hydrophilicity onto the surface of adsorbents. Microporous Mesoporous Mater. 50 : 77-90

Popat, A., Hartono, S.B., Stahr, F., Liu, J., Qiao, S.Z. and Lu, G.Q. (2011). Mesoporous silica nanoparticles for bioadsorption, enzyme immobilisation, and delivery carriers. Nanoscale. 3(7) : 2801-2818.

Lei, J., Fan, J., Yu, C., Zhang, L., Jiang, S., Tu, B. and Zhao, D. (2004). Immobilization of enzymes in mesoporous materials: controlling the entrance to nanospace. Microporous and Mesoporous Materials. (73) : 121-128.

Essien, E.R., Olaniyi, O.A., Adams, L.A. and Shaibu, R.O. (2011). Highly porous silica network prepared from sodium metasilicate. Journal of Metals, Materials and Minerals. 21(2) : 7-12.

Sarvi, M.N., Stevens, G.W., Gee, M.L. and O’Connor, A.J. (2012). The co-micelle/emulsion templating route to tailor nano-engineered hierarchically porous macrospheres. Microporous and Mesoporous Materials. 149 : 101-105.

Kresge, C.T., Leonowicz, M.E., Roth, W.J., Vartuli, J.C. and Beck, J.S. (1992). Ordered mesoporous molecular sieves synthesized by a liquid crystal template mechanism. Nature. 359 : 710-712.

Zhao, D.Y., Feng, J.L., Huo, Q.S., Melosh, N., Fredrickson, G.H., Chmelka, B.F. and Stucky, G.D. (1998). Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores. Science. 279 : 548-552.

Schmidt-Winkel, P., Lukens, W.W., Zhao, D.Y., Yang, P.D., Chmelka and Stucky, G.D. (1999). Mesocellular siliceous foams with uniformly sized cells and windows. J. Am. Chem. Soc. (121) : 254-255.

Fan, J., Yu, C.Z., Gao, T., Lei, J., Tian, B.Z., Wang, L.M., Luo, Q., Tu, B., Zhou, W.Z. and Zhao, D.Y. (2003). Cubic mesoporous silica with large controllable entrance sizes and advanced adsorption properties. Angew. Chem. Int. Ed. (42) : 3146-3150.

Brennan, J.D., Hartman, J.S., Ilnicki, E.I. and Rakic, M. (1999). Fluorescence and NMR characterization and biomolecule entrapment studies of sol-gel-derived organic-inorganic composite materials formed by sonication of precursors. Chem. Mater. (11) : 1853-1864.

Zhang, H. and Cooper, A.I. (2002). Synthesis of monodisperse emulsion-templated polymer beads by oil-in-water-in-oil (O/W/O) sedimentation polymerization. Chem. Mater. (14) : 4017-4020.

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เผยแพร่แล้ว

2014-12-24

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บท

Original Research Articles