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Title: Visible range photocatalysts for solid phase photocatalytic degradation of polyethylene and polyvinyl chloride
Authors: Gupta, A.
Lakshmi, Y.N.
Manivannan, R.
Noyel, Victoria, S.
Issue Date: 2017
Citation: Journal of the Chilean Chemical Society, 2017, Vol.62, 1, pp.3393-3398
Abstract: Solid phase photocatalytic degradation of polyethylene (PE) and polyvinyl chloride (PVC) with various photocatalysts such as ceria annealed at 350�C and 850�C, zinc oxide annealed at 250�C, copper sulfide and titania particles was studied under different light sources. Except titania, all the other photocatalysts performed reasonably well both in the visible and ultra-violet (UV) radiations. Ceria annealed at 850�C showed degradation efficiencies higher than 70% for PVC in the fluorescent and solar radiation. Ceria annealed at 350�C showed degradation efficiencies higher than 75% for polyethylene in fluorescent, solar and UV radiation. The Fourier transform infrared spectroscopy studies show the presence of adsorbed carbon dioxide on the degraded polymer-photocatalyst composite films. The UV-visible spectroscopic studies show that the ceria, zinc oxide and copper sulfide photocatalysts are active in the visible spectrum resulting in enhanced degradation efficiency in fluorescent and solar radiation.
URI: 10.4067/S0717-97072017000100018
Appears in Collections:1. Journal Articles

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