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Photocatalytic decomposition of N-methyl-2-pyrrolidone, aldehydes, and thiol by biphase and p/n junction-like organic semiconductor composite nanoparticles responsive to nearly full spectrum of visible light

Paper ID Volume ID Publish Year Pages File Format Full-Text
26923 43987 2012 6 PDF Available
Title
Photocatalytic decomposition of N-methyl-2-pyrrolidone, aldehydes, and thiol by biphase and p/n junction-like organic semiconductor composite nanoparticles responsive to nearly full spectrum of visible light
Abstract

Organic semiconductor nanoparticles composed of fullerene C60 and/or partially hydrolyzed aluminum phthalocyanine chloride (AlPc) were synthesized using a reprecipitation method. The composite's biphase structure was confirmed using scanning electron microscopy, scanning transmission electron microscopy, energy-dispersive X-ray spectroscopy, zeta potential, and dynamic light scattering, and a possible formation mechanism for the biphase structure was also proposed. In the photodegradation experiments, the composite showed enhanced photocatalytic activity for the oxidation of various organic compounds (e.g. N-methyl-2-pyrrolidone, methanal, ethanal, and 2-mercaptoethanol (ME)) to CO2 as compared to the C60 or AlPc nanoparticles. Moreover, its action spectrum for the photocatalytic decomposition of ME to CO2 also covered almost the full spectrum of visible light (<700 nm). The present research demonstrated a novel organic photocatalyst featuring a biphase structure and p/n junction-like characteristics.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Biphasic nanoparticles composed of C60 and AlPc were synthesized using a reprecipitation method. ► The composite showed higher photocatalytic oxidation of organic volatiles to CO2 than C60 and AlPc. ► The action spectrum of CO2 generation covered almost the full spectrum of visible light.

Keywords
Organophotocatalyst; Fullerene; Phthalocyanine; p/n junction; CO2
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Photocatalytic decomposition of N-methyl-2-pyrrolidone, aldehydes, and thiol by biphase and p/n junction-like organic semiconductor composite nanoparticles responsive to nearly full spectrum of visible light
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 244, 15 September 2012, Pages 18–23
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