Microwave-assisted Fenton's oxidation of amoxicillin

• Type: Article in International Scientific Journal
• Date: 2013

Authors

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

Journal

Title: Chemical Engineering Journal

Vol. 220

Pages: 35-44

ISSN: 1385-8947

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 34 Citations

ISI Web of Science

Scopus - 58 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Chemical engineering

Associated Projects

UI0511 - PROJECTO ESTRATÉGICO - UI 511 - 2013-2014

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10