Microwave-assisted Fenton's oxidation of amoxicillin

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Vera Homem (Autor) FEUP; Arminda Alves (Autor) FEUP; Lúcia Santos (Autor) FEUP

Revista

Título: Chemical Engineering Journal

Vol. 220

Páginas: 35-44

ISSN: 1385-8947

Editora: Elsevier

Indexação

ISI Web of Knowledge - 34 Citações

ISI Web of Science

Scopus - 58 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Projetos Associados

UI0511 - PROJECTO ESTRATÉGICO - UI 511 - 2013-2014

Outras Informações

ID Authenticus: P-005-2G5

DOI: 10.1016/j.cej.2013.01.047

Abstract (EN): Advanced oxidation processes (AOPs) have been increasingly applied to emergent pollutants degradation. Although, homogeneous reaction by classical Fenton enables amoxicillin degradation, high iron catalyst concentrations are needed, raising environmental concerns. This work proposed an innovative and cheap solution to degrade amoxicillin by combining microwave with Fenton's reaction. The main operational parameters were optimized step-by-step (hydrogen peroxide and ferrous ion concentration and microwave power). Amoxicillin oxidation was significantly improved over classical Fenton's reaction. In fact, in less than 5 min (P = 162 W, [H2O2](0) = 2.35 mg L-1, [Fe2+](0) = 95 mu g L-1) amoxicillin was no longer detected in the reaction system. A semi-empirical kinetic model was proposed to predict the two-stage decay curves at any conditions within the studied parameters and the adequacy of the model was statistically evaluated.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10