Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels

S. A Syed Nuzul Fadzli, Roslinda Shamsudin, Z. Firuz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hybrid silica xerogel mesoporous composite was synthesized by a mild temperature acid catalysed sol-gel route where a natural copolymer; sodium alginate (Na-COOH) together with calcium oxide (CaO) powder were incorporated into silica sol precursor prior to gel formation. For this study, bulk xerogels samples were prepared with the amount of silica precursor and the natural copolymer was fixed meanwhile the loading of calcium oxide was varied at 10 and 20 wt%. The monolith silica was also synthesized as control parameter. The preliminary properties were investigated using XRD, FTIR and SEM together with EDS for elemental analysis. The calcium oxide powder used in this study was prepared from calcium hydroxide, CaOH compound, which was previously calcined at 1000°C for 3 hours in normal air. The component of calcium oxide and sodium alginate were found to be uniformly dispersed in matrixes without affecting the cross-linked silica formation. As the presence of the components in the silica matrixes, the synthesized hybrid xerogels were found to be crack-free, structurally amorphous and physically opaque. Furthermore, the hybrid xerogels samples were found to have denser bodies, smoother surface, and decreased in particle sizes and thus might produced less brittleness in nature compared to the monolith xerogels.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages1009-1014
Number of pages6
Volume594-595
DOIs
Publication statusPublished - 2014
Event2013 International Conference on Advanced Materials Engineering and Technology, ICAMET 2013 - Bandung
Duration: 28 Nov 201329 Nov 2013

Publication series

NameKey Engineering Materials
Volume594-595
ISSN (Print)10139826

Other

Other2013 International Conference on Advanced Materials Engineering and Technology, ICAMET 2013
CityBandung
Period28/11/1329/11/13

Fingerprint

Xerogels
Silicon Dioxide
Sol-gels
Silica
Lime
Sodium alginate
Powders
Copolymers
Calcium Hydroxide
Hydrated lime
Polymethyl Methacrylate
Brittleness
Sols
Energy dispersive spectroscopy
Gels
Particle size
Cracks
Scanning electron microscopy
Acids
lime

Keywords

  • Composite
  • Hybrid material
  • Mesoporous
  • Silica xerogels
  • Sol-gel synthesis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Fadzli, S. A. S. N., Shamsudin, R., & Firuz, Z. (2014). Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels. In Key Engineering Materials (Vol. 594-595, pp. 1009-1014). (Key Engineering Materials; Vol. 594-595). https://doi.org/10.4028/www.scientific.net/KEM.594-595.1009

Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels. / Fadzli, S. A Syed Nuzul; Shamsudin, Roslinda; Firuz, Z.

Key Engineering Materials. Vol. 594-595 2014. p. 1009-1014 (Key Engineering Materials; Vol. 594-595).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fadzli, SASN, Shamsudin, R & Firuz, Z 2014, Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels. in Key Engineering Materials. vol. 594-595, Key Engineering Materials, vol. 594-595, pp. 1009-1014, 2013 International Conference on Advanced Materials Engineering and Technology, ICAMET 2013, Bandung, 28/11/13. https://doi.org/10.4028/www.scientific.net/KEM.594-595.1009
Fadzli SASN, Shamsudin R, Firuz Z. Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels. In Key Engineering Materials. Vol. 594-595. 2014. p. 1009-1014. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.594-595.1009
Fadzli, S. A Syed Nuzul ; Shamsudin, Roslinda ; Firuz, Z. / Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels. Key Engineering Materials. Vol. 594-595 2014. pp. 1009-1014 (Key Engineering Materials).
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