Removal of barium from radioactive aqueous solution by PVA-alginate encapsulated titanium oxide using sunlight and other light types

Barium removal with titania PVA-alginate beads was conducted with sunlight, xenon, black light bulb (BLB) and light emitting diode (LED) lamps. The removal was studied as a function of pH, contact time, temperature and initial concentration. The findings show the removal rate of barium achieved a 98...

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Bibliographic Details
Main Authors: Majidnia, Zohreh, Idris, Ani
Format: Article
Published: Royal Society of Chemistry 2015
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Summary:Barium removal with titania PVA-alginate beads was conducted with sunlight, xenon, black light bulb (BLB) and light emitting diode (LED) lamps. The removal was studied as a function of pH, contact time, temperature and initial concentration. The findings show the removal rate of barium achieved a 98% maximum within 130 min under sunlight. The beads were found to be easily isolated from the aqueous solution and could be reused a minimum of 5 times without losing the original properties. Barium reduction fitted best with the pseudo second-order rate model with a coefficient of determination (R2) of 0.9938.