Immobilization of iron (II) in alginate matrix and its use in textile dye degradation by Fenton processes

Química Nova

Souza, Kely Viviane de¹  Universidade Federal do Paraná, Curitiba, Brasil¹  Zawadzki, Sônia Faria¹  Peralta-Zamora, Patricio¹ 

关键词: Fenton process;    immobilized iron;    alginate.;   

DOI  :  10.1590/S0100-40422008000500041

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this work Fenton and photo-Fenton processes for textile dye degradation were investigated using iron (II) immobilized in alginate spheres. Photomicrographs obtained by scanning electron microscopy showed an irregular and porous surface with a homogeneous distribution of iron. The Fenton process was used to evaluate the degradation efficiency of reactive dyes and this procedure showed a low degradation effect. The association of artificial visible light or solar radiation in the Fenton process (foto-Fenton process) showed degradation ratios of 70 and 80% respectively in 45 min. It was also observed that the iron-alginate matrix can be reused.

【 授权许可】

Unknown