Synthesis of Poly(vinyl alcohol)/Chitosan/Silicon Oxide Beads Untreated and Glutaraldehyde Treated

Syazwan Liyana Sulaiman; Muhamad Subri Abu Bakar; Sufizar Ahmad; Hariati Taib

doi:10.4028/www.scientific.net/AMR.893.27

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 893Synthesis of Poly(vinyl alcohol)/Chitosan/Silicon...

Synthesis of Poly(vinyl alcohol)/Chitosan/Silicon Oxide Beads Untreated and Glutaraldehyde Treated

Abstract:

Synthesised PVA/CS/SiO₂ beads had been considered as a promising alternative to conventional means of heavy metal removal. The PVA/CS/SiO₂ beads were successfully synthesised through a simple dropwise method and different ratio of cross-linking agent, glutaraldehyde (GLA) of 0, 0.25M and 0.5M were used to cross-link the PVA/CS/SiO₂ beads. Solubility and swelling behavior of the beads were also investigated within the prescribed time of 24h in three different medium of acidic, distilled water and alkaline solution. Result of solubility test showed that PVA/CS/SiO₂ beads without GLA dissolves in acidic medium but insoluble in distilled water and alkaline solution. Meanwhile, the PVA/CS/SiO₂ beads cross-linked with GLA did not dissolve in all three mediums. The swelling test revealed that PVA/CS/SiO₂ beads without cross-linked with GLA showed the highest of swelling in acidic solution which was 225.2% and PVA/CS/SiO₂ beads cross-linked with 0.5M GLA recorded the lowest of swelling in acidic solution which was 98.6%. This concluded that as the cross-linking ratio increased, the swelling behaviour of the PVA/CS/SiO₂ beads decreased.

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Advanced Materials Research (Volume 893)

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27-30

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.893.27

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Online since:

February 2014

Authors:

Syazwan Liyana Sulaiman*, Muhamad Subri Abu Bakar, Sufizar Ahmad, Hariati Taib

Keywords:

Heavy Metals Removal, PVA/CS/SiO₂ Beads, PVA/CS/SiO₂-GLA Beads, Solubility, Swelling

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