Swelling of PVA/Chitosan/TiO2 Nanofibers Membrane in Different PH

Ari Dwi Nugraheni; Diki Purnawati; Ani Rohmatillah; Dian Nur Mahardika; Ahmad Kusumaatmaja

doi:10.4028/www.scientific.net/MSF.990.220

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HomeMaterials Science ForumMaterials Science Forum Vol. 990Swelling of PVA/Chitosan/TiO2 Nanofibers Membrane...

Swelling of PVA/Chitosan/TiO₂ Nanofibers Membrane in Different PH

Abstract:

The nanofiber PVA/chitosan have been successfully fabricated by the addition of TiO₂ or without TiO₂. Nanofiber membranes of PVA/chitosan/TiO₂ were fabricated with weight ratio of PVA/chitosan (w/w) 90/10, 85/15, and 80/20. Glutaraldehyde cross-linking was added to increase membrane stability in water. Swelling behavior was tested in three different pH to investigate the swelling behavior of nanofiber membranes of PVA/chitosan with and without TiO₂. The result indicated that the addition of chitosan concentration would decrease the swelling index, and increase the time constant (τ). The swelling index will increase in high pH (pH 10.01) compare to low pH (pH 4.01).

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Periodical:

Materials Science Forum (Volume 990)

Pages:

220-224

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.990.220

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Online since:

May 2020

Authors:

Ari Dwi Nugraheni*, Diki Purnawati, Ani Rohmatillah, Dian Nur Mahardika, Ahmad Kusumaatmaja

Keywords:

Chitosan, Nanofiber, PVA, Swelling, Titanium Dioxide (TiO₂)

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