fulltext.study @t Gmail

Visible light singlet oxygen production with tetra(4-carboxyphenyl)porphyrin/SiO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
27612 44032 2013 6 PDF Available
Title
Visible light singlet oxygen production with tetra(4-carboxyphenyl)porphyrin/SiO2
Abstract

•Tetra(4-carboxypenyl)porphyrin adsorbed on SiO2 with visible light generate singlet oxygen.•The absence of the EPR DMPO-O2− signal evidenced that superoxide anion was not present.•Anthraquinone and oxanthrone produced by the decomposition of the endoperoxide intermediary were identified as the only oxidation products of anthracene.

The production of singlet oxygen with tetra(4-carboxyphenyl)porphyrin adsorbed on SiO2 irradiated with visible light (λ > 500 nm) was evidenced by EPR spectra of TEMPO formed by oxidation of 2,2,6,6-tetramethyl-4-piperidone(TEMP) with 1O2. The formation of singlet oxygen was also evidenced by the formation of anthraquinone and oxanthrone as oxidation products of anthracene with 1O2. The absence of the EPR DMPO-O2− signal evidenced that superoxide anion was not present. No other oxygen radicals were detected. TCPP and TCPP/SiO2 were characterized with UV–vis, UV–vis diffuse reflectance and FT-IR spectroscopy.

Keywords
Porphyrin; Silica; Singlet oxygen; TEMPO
First Page Preview
Visible light singlet oxygen production with tetra(4-carboxyphenyl)porphyrin/SiO2
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 259, 1 May 2013, Pages 47–52
Authors
, , , , , ,
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