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Copper sulfide films obtained by spray pyrolysis for dyes photodegradation under visible light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
26642 43969 2013 7 PDF Available
Title
Copper sulfide films obtained by spray pyrolysis for dyes photodegradation under visible light irradiation
Abstract

Thin films of CuxS were deposited by robotic spray pyrolysis technique, at T = 300 °C, using 20–50 spraying sequences, from water:ethanol:glycerol = 7:2:1 (in volumes) precursor solutions with molar ratio Cu:S = 1:2.5–3.5. Relative homogenous and uniform films of CuxS (x = 1.8, 2), with 321–571 nm thickness, granular morphology and Eg = 2.11–2.78 eV were obtained. The photocatalytic activity of the films was evaluated based on the degradation of methylene blue in aqueous solution containing H2O2, under visible (VIS) light irradiation. Efficiencies of 90–99% and 84–89%, after 4 and 12 h, respectively, under visible light irradiation, showed that CuxS films are promising materials for organic pollutants (dyes) photodegradation.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Thin films of CuxS were deposited by spray pyrolysis technique, at T = 300 °C. ► Uniform films of CuxS (x = 1.8, 2), with 321–571 nm thickness, granular morphology. ► Polar and dispersive component of the surface energy varies function of composition. ► The films have Eg = 2.11–2.78 eV. ► The photocatalytic efficiency of dye degradation varies from 84% up to 99%.

Keywords
Copper sulfide; Spray pyrolysis; Structural characterization; Photocatalysis; Wastewater treatment
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Copper sulfide films obtained by spray pyrolysis for dyes photodegradation under visible light irradiation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 252, 15 January 2013, Pages 53–59
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
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Any Questions? feel free to contact us