Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5684
Title: Methylene blue adsorption from aqueous solutions to flexible poly(vinyl chloride) silica composites
Authors: Yetgin, Senem
Ulutan, Sevgi
Balköse, Devrim
Yetgin, Senem
Balköse, Devrim
Izmir Institute of Technology. Chemical Engineering
Keywords: Adsorption
Aromatic compounds
Polyvinyl chlorides
Biomedical equipment
Silica
Chlorine compounds
Functional polymers
Issue Date: Mar-2015
Publisher: John Wiley and Sons Inc.
Source: Yetgin, S., Ulutan, S., and Balköse, D. (2015). Methylene blue adsorption from aqueous solutions to flexible poly(vinyl chloride) silica composites. Journal of Vinyl and Additive Technology, 21(1), 42-50. doi:10.1002/vnl.21379
Abstract: Methylene blue (MB) adsorption studies were performed with poly(vinyl chloride)-(dioctyl phthalate)-silica composites, which were obtained by using plastisol-plastigel technology. The films were flexible, having elastic modulus of 1.0-1.5 GPa. Diminishing MB concentration in the aqueous phase was followed as the adsorption process advanced by using visible spectroscopy. Contributions of the individual components of the composites to adsorption were also investigated. Although the MB adsorption capacity was extensively high for silica, it was moderate for the composite, most likely owing to the occlusion of pores of silica by plasticizer to some extent. The improvement of MB adsorption capacity of the composites as the silica ratio increased was explicitly deduced from the optical microscopy photographs. The diffusion coefficients of MB through the composites were 5 × 10-13, 6 × 10-13, and 3 × 10-13 m2 s-1 with regression coefficients of 0.73, 0.89, and 0.88 for 0, 2, and 16% silica-containing composites, respectively. Because of the slow diffusion of MB in poly(vinyl chloride)-silica composites, using them as dynamic column adsorbent was not practical. However, these versatile plastics can be used as plastic labels, colored clothing, leather substitutes, antimicrobial medical devices, and laser printable surfaces.
URI: http://doi.org/10.1002/vnl.21379
http://hdl.handle.net/11147/5684
ISSN: 1083-5601
1548-0585
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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