- Title
- Photocatalytic behaviour of zinc tetraamino phthalocyanine-silver nanoparticles immobilized on chitosan beads
- Creator
- Khoza, Phindile
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2015
- Date
- 2015
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/189468
- Identifier
- vital:44849
- Identifier
- xlink:href="https://doi.org/10.1016/j.molcata.2015.01.017"
- Description
- Photocatalytic degradation of Rhodamine 6G using unconjugated zinc tetraamino phthalocyanine (ZnTAPc) or when conjugated to Ag nanoparticles (ZnTAPc–AgNPs) is reported. Upon conjugating ZnTAPc to silver nanoparticles, the singlet oxygen production of the phthalocyanine was slightly increased. ZnTAPc and ZnTAPc–AgNPs were immobilized onto chitosan beads for ease of recovery after photocatalysis. Chitosan beads were characterized by FTIR, XRD and TGA. The photodegradation of Rhodamine 6G was used to evaluate the efficiency of the immobilized photocatalysts. In the presence of AgNPs, the photodegradation of Rhodamine 6G was enhanced. The apparent rates (k) were found to be 8.51 × 10−8 and 1.61 × 10−7 mol L−1 min−1 for chitosan supported ZnTAPc or ZnTAPc–AgNPs, respectively. The observation of good photocatalytic activity of the ZnTAPc when immobilized on chitosan proves the uncompromised efficiency of the photocatalysts even when confined in beads, showing great potential for the functionalized beads as heterogeneous catalysts.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (9 pages)
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Molecular Catalysis A: Chemical
- Relation
- Khoza, P. and Nyokong, T., 2015. Photocatalytic behaviour of zinc tetraamino phthalocyanine-silver nanoparticles immobilized on chitosan beads. Journal of Molecular Catalysis A: Chemical, 399, pp.25-32
- Relation
- Journal of Molecular Catalysis A: Chemical volume 399 p. 25 2015 1873-314X
- 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: 954
- Visitors: 1047
- Downloads: 106
Collections
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Photocatalytic behaviour of zinc tetraamino phthalocyanine-silver nanoparticles immobilized on chitosan beads.pdf | 679 KB | Adobe Acrobat PDF | View Details Download |