- Title
- Photocatalysis of 4-nitrophenol using zinc phthalocyanine complexes
- Creator
- Marais, Eloïse A, Klein, Rosalyn, Antunes, Edith M, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2007
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/281286
- Identifier
- vital:55709
- Identifier
- xlink:href="https://doi.org/10.1016/j.molcata.2006.07.055"
- Description
- Photodegradation of 4-nitrophenol (4-Np) in the presence of zinc tetrasulfophthalocyanine (ZnPcS4), zinc octacarboxyphthalocyanine (ZnPc(COOH)8) and a sulfonated ZnPc containing a mixture of differently sulfonated derivatives (ZnPcSmix), as photocatalysts is reported. ZnPcSmix is the most effective catalyst in terms of a high quantum yield for 4-Np degradation and the stability of the catalyst. However ZnPc(COOH)8 degrades readily during the catalysis, but it has a higher quantum yield (Φ4-Np) for 4-Np degradation than the rest of the complexes. The Φ4-Np values were closely related to the singlet oxygen quantum yields ΦΔ and hence aggregation. The rate constants for the reaction with 4-Np were kr = 0.67 × 106 mol−1 dm3 s−1 for ZnPcSmix and 2.8 × 108 mol−1 dm3 s−1 for ZnPc(COOH)8.
- Format
- computer, online resource, application/pdf, 1 online resource (7 pages), pdf
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Molecular Catalysis A: Chemical, Marais, E., Klein, R., Antunes, E. and Nyokong, T., 2007. Photocatalysis of 4-nitrophenol using zinc phthalocyanine complexes. Journal of Molecular Catalysis A: Chemical, 261(1), pp.36-42, Journal of Molecular Catalysis A: Chemical volume 261 number 1 p. 36 2007 1381-1169
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
- Rights
- Closed Access
- Hits: 603
- Visitors: 671
- Downloads: 78
Collections
Antunes, Edith Martins (Dr)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Klein, Rosalyn (Assoc Prof)
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Photocatalysis of 4-nitrophenol using zinc phthalocyanine complexes.pdf | 640 KB | Adobe Acrobat PDF | View Details |