Effect of Heat on the Morphology and Optical Properties of Porphyrin Nanostructures

被引：8

作者：

Egharevba, G. O. ^{[1
]}

George, R. C. ^{[1
]}

Maaza, M. ^{[2
]}

机构：

[1] Obafemi Awolowo Univ, Dept Chem, Ife 220005, Nigeria

[2] Natl Res Fdn, IThemba LABS, Nanosci Labs, Somerset W, South Africa

来源：

SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY | 2008年 / 38卷 / 09期

关键词：

absorbance; agglomerate; J-bands; nanostructures; nanotubes; porphyrins;

D O I：

10.1080/15533170802440565

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Porphyrin nanostructures of well-defined shapes were prepared by ionic self-assembly of two oppositely charged porphyrins. These nanostructures were prepared using meso-tetra(4-phenylsulfonic acid) porphyrin, tin (IV) meso-tetra(4-pyridyl)porphyrin dichloride and vanadium (IV) oxide meso-tetra (4-pyridyl)porphyrin. The effect of heat resulted in intense agglomeration and production of porphyrin nanotubes of larger sizes and a greater population. These features of nanoporphyrins structures were observed using transmission electron microscope (TEM) and scanning electron microscope (SEM). UV-VIS absorption spectra of the samples show that those prepared at 70C have intense soret bands, with broadening of J-aggregate bands, when compared with those prepared at room temperature.

引用

页码：681 / 687

页数：7

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