Study of the Electroreactivity of Amoxicillin on Carbon Nanotube-Supported Metal Electrodes

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Marta Ferreira (Author) Other; Iwona Kuzniarska-Biernacka (Author) Other; António M. Fonseca (Author) Other; sabel C. Neves (Author) Other; Olívia S. G. P. Soares (Author) FEUP; Manuel Fernando R. Pereira (Author) FEUP; José L. Figueiredo (Author) Other; Pier Parpot (Author) Other

Journal

Title: ChemCatChem

Vol. 10 No. 21

Pages: 4914-4923

ISSN: 1867-3880

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 5 Citations

Associated Projects

AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable North Region of Portugal2020

Other information

Authenticus ID: P-00P-PBN

DOI: 10.1002/cctc.201801193

Abstract (EN): The electroreactivity of amoxicillin (AMX) was studied on catalysts based on platinum, palladium and ruthenium supported on carbon nanotubes (Pt/CNT, Pd/CNT, Ru/CNT) in aqueous media using cyclic voltammetry. Cyclic voltammograms show two oxidation processes, the first one between 0.5 and 1.0 V vs. reference hydrogen electrode (RHE) and the second one between 1.2 and 1.6 V vs. RHE. The effects of electrocatalytic material and supporting electrolyte, on current intensities and oxidation potentials, were determined using experimental design strategy (DOE). Kinetic parameters of the oxidation reactions were calculated from the scan rate study. The constant potential electrolysis of AMX was carried out on Ru/CNT catalyst, in 0.1 M NaOH and AMX conversion reached 45 % after 6 h of electrolysis at 2.5 V vs. RHE. The percentages of CO32-, SO42- and NO3- among oxidation products were 26, 17 and 4 %, respectively. The primary degradation products of AMX determined by HPLC-MS gave some insight about the reaction pathways.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10