Phototransformation on 4-Nitrophenol Using Pd Phthalocyanines Supported on Single Walled Carbon Nanotubes
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Date
2011-03
Authors
Ogunbayo, T.B.
Nyokong, T.
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Molecular Catalysis A: Chemical(ELSEVIER)
Abstract
Adsorption of palladium phthalocyanines complexes on single walled carbon nanotubes was
carried out. The resulting composites were employed as catalysts for heterogeneous photocatalytic oxidation of 4-nitrophenol (4-NP) in aqueous media. Singlet oxygen was found to be
involved in the phototransformation of 4-NP. Gas chromatographic separation gave hydroquinone
and benzoquinone as the phototransformation products. Langmuir–Hinshelwood (L–H) model was
employed to evaluate the adsorption and desorption equilibria of the reactants and the products. 2,3,9,10,16,17,23,24-octakis(dodecylthiophthalocyaninato) palladium(II) and 1,4,8,11,15,18,22,25-
octakis(dodecylthio phthalocyaninato) palladium, containing the longest alkyl chain gave the best
performances.
Description
Keywords
Photocatalysis , Phthalocyanines , Oxidation , 4-Nitrophenol
Citation
Ogunbayo, Taofeek & Nyokong, Tebello. (2011). Phototransformation of 4-nitrophenol using Pd phthalocyanines supported on single walled carbon nanotubes. Journal of Molecular Catalysis A: Chemical. 337. 68–76. 10.1016/j.molcata.2011.01.016.