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Kinetics of Tartrazine Photodegradation by Cu-Modified Silicon Nanowires

Abstract

In the present work we investigated the photodegradation of tartrazine by silicon nanowires (SiNWs) without presence of H2O2. SiNWs were elaborated with a simple chemical method termed metal-assisted electroless etching. Also, SiNWs modified with copper was experimented as photocatalysts for the degradation of tartrazine and the effect of copper concentration was examined. The results show that silicon nanowires modified with high concentration of copper exhibit the best photocatalytic activity with a degradation rate follows the pseudo-first-order kinetics.

Naama S, Hadjersi T, Menari H and Lamrani S

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