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Solvothermal synthesis of BiOI microspheres: Effect of the reaction time on the morphology and photocatalytic activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
26559 43963 2014 7 PDF Available
Title
Solvothermal synthesis of BiOI microspheres: Effect of the reaction time on the morphology and photocatalytic activity
Abstract

•The effect of the reaction time on the morphology of BiOI microspheres was studied.•The structural characterization of the catalyst was carried out.•The activity of materials was evaluated on caffeic acid and compared to titania Evonik P25 under simulated solar light.•BiOI presents higher activity than titania P25.

BiOI microspheres were synthesized by a solvothermal synthesis route from Bi(NO3)3·5H2O, using ethylene glycol in the presence of the ionic liquid 1-butyl-3-methylimidazolium iodide. The autoclave temperature was maintained constant at 120 °C and the reaction time was varied from 2 to 48 h. The obtained materials were characterized by XRD, SEM, TEM, EDS, nitrogen adsorption, FTIR and DRS. In addition, the photocatalytic activity of synthesized BiOI was evaluated in the oxidation of caffeic acid under simulated solar irradiation. Samples obtained between 12 and 24 h of synthesis present microsphere shapes and higher photocatalytic activity. All materials exhibit higher activities than TiO2 Evonik P25 used as standard catalyst.

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Keywords
BiOI; Caffeic acid; Microspheres; Photocatalyst; Solvothermal synthesis; UV-A
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Solvothermal synthesis of BiOI microspheres: Effect of the reaction time on the morphology and photocatalytic activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 289, 1 September 2014, Pages 7–13
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us