- Title
- Effects of number of ring substituents on the physicochemical properties of zinc aminophenoxy phthalocyanine-single walled carbon nanotube conjugate
- Creator
- Ogbodu, Racheal O
- Creator
- Nyokong, Tebello
- Type
- Article
- Identifier
- vital:7319
- Identifier
- http://hdl.handle.net/10962/d1020564
- Description
- This work reports on the linking of zinc monoaminophenoxy (ZnMAPPc) or zinc tetraaminophenoxy phthalocyanine (ZnTAPPc) complexes to single walled carbon nanotubes (SWCNTs) through either covalent or non-covalent (adsorption) bonding. The functionalized complexes showed better thermal stability when compared to the SWCNT-COOH, ZnMAPPc and ZnTAPPc alone as confirmed by thermogravimetric analyses. The covalently linked ZnMAPc-SWCNT showed higher electron transfer rate constant and photoinduced electron efficiency when compared to adsorbed complexes. ZnMAPPc-SWCNT complexes (linked and adsorbed) showed better photophysical and photochemical properties when compared to ZnTAPPc-SWCNT complexes. The triplet, singlet oxygen and florescence quantum yields of ZnMAPPc (or ZnTAPPc) decrease upon linking or adsorption onto SWCNTs.
- Description
- Original publication is available at http://dx.doi.org/10.1016/j.jphotochem.2013.09.015
- Format
- 8 p
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Ogbodu, R. O. & Nyokong, T. 2014. Effects of number of ring substituents on the physicochemical properties of zinc aminophenoxy phthalocyanine-single walled carbon nanotube conjugate. Journal of Photochemistry and Photobiology A: Chemistry, 274:83–90. Available: http://dx.doi.org/10.1016/j.jphotochem.2013.09.015.
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Nyokong, Tebello (Distinguished Professor)