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Efficient photo-degradation of 4-nitrophenol by using new CuPp-TiO2 photocatalyst under visible light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
51568 46847 2011 4 PDF Available
Title
Efficient photo-degradation of 4-nitrophenol by using new CuPp-TiO2 photocatalyst under visible light irradiation
Abstract

A new functionalized porphyrin, 5-mono-[4-(2-(4-acetateethyl)-phenoxy) ethoxy]-10, 15, 20-triphenylporphyrin H2Pp (2) and its copper (II) porphyrin (CuPp) were synthesized. The corresponding CuPp-TiO2 photocatalyst was then prepared and characterized by means of FT-IR and diffused reflectance spectra, X-ray diffraction (XRD). The photocatalytic activity of CuPp-TiO2 was investigated by testing the photo-degradation of 4-nitrophenol (4-NP) in aqueous solution under visible light irradiation with the assistance of appropriate amount of H2O2. The results indicated that the photo-degradation of 4-NP was much enhanced compared with the bare TiO2. Additionally, a possible mechanism of the photocatalytic degradation was also proposed in the presence of H2O2 under visible light irradiation.

► A new CuPp-TiO2 photocatalyst was prepared and characterized. ► There exists weak interaction between TiO2 surface and CuPp molecules. ► The CuPp-TiO2 photocatalyst displays highly photoactivity in the presence of H2O2. ► The high photoactivity is due to the quickly electronic transfer from TiO2 to H2O2.

Keywords
Porphyrin; Copper(II) porphyrin; Titanium dioxide; Photocatalysis; Photodegradation; H2O2
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Efficient photo-degradation of 4-nitrophenol by using new CuPp-TiO2 photocatalyst under visible light irradiation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 16, Issue 1, 30 November 2011, Pages 90–93
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