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Preparation and characterization of core–shell polyaniline/mesoporous Cu2O nanocomposites for the photocatalytic oxidation of thiophene

Paper ID Volume ID Publish Year Pages File Format Full-Text
39638 45829 2014 8 PDF Available
Title
Preparation and characterization of core–shell polyaniline/mesoporous Cu2O nanocomposites for the photocatalytic oxidation of thiophene
Abstract

•A novel PANI/M-Cu2O nanocomposite was prepared.•The photocatalytic properties were studied upon visible irradiation.•PANI/M-Cu2O nanocomposite showed superior photocatalytic activity.•PANI/M-Cu2O nanocomposite remain effective and active after five cycles.

Polyaniline/mesoporous Cu2O core–shell nanocomposites with different mass ratios of polyaniline/mesoporous Cu2O were prepared using a hydrothermal method. For comparison, Cu2O nanoparticles and polyaniline/Cu2O nanoparticles were also prepared using a hydrothermal method. The catalytic performance of the samples during the photocatalytic oxidation of thiophene under visible-light irradiation was determined. The surface areas of the mesoporous and nanoparticulate Cu2O materials were 140 and 40 m2/g, respectively. Adding polyaniline to mesoporous and nanoparticulate Cu2O decreases the surface areas of the nanoparticles to 120 and 32 m2/g, respectively. TEM images reveal that the mesoporous and nanoparticulate Cu2O materials occur as uniform microspheres and spherical nanoparticles, respectively. The polyaniline/mesoporous Cu2O and polyaniline/Cu2O nanoparticles are core–shell and spherical nanoparticles, respectively. The photocatalytic degradation of thiophene under visible-light irradiation while using 4% polyaniline/mesoporous Cu2O was 2.87, 2.20, and 1.34 times more effective than that observed when using Cu2O nanoparticles, polyaniline/Cu2O nanoparticles, and mesoporous Cu2O, respectively.

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Keywords
Polyaniline; Mesoporous Cu2O; Visible photocatalyst; Thiophene removal
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Preparation and characterization of core–shell polyaniline/mesoporous Cu2O nanocomposites for the photocatalytic oxidation of thiophene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 480, 20 June 2014, Pages 100–107
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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