DICLOFENAC REMOVAL FROM AQUEOUS SOLUTIONS BY ELECTROOXIDATION AT BORON-DOPED DIAMOND (BDD) ELECTRODE

2015 ◽  
Vol 14 (6) ◽  
pp. 1339-1345
Author(s):  
Monica Ihos ◽  
Florica Manea ◽  
Maria Jitaru ◽  
Corneliu Bogatu ◽  
Rodica Pode
Keyword(s):  
Aqueous Solutions ◽  
Boron Doped Diamond ◽  
Bdd Electrode ◽  
Boron Doped

scholarly journals Study of the Electrochemical Deposition of Cu/Sn Alloy Nanoparticles on Boron Doped Diamond Films for Electrocatalytic Nitrate Reduction

2013 ◽  
Vol 1511 ◽  
Author(s):  
Jorge T. Matsushima ◽  
Andrea B. Couto ◽  
Neidenei G. Ferreira ◽  
Mauricio R. Baldan
Keyword(s):  
Electrochemical Deposition ◽  
Sem Analysis ◽  
Homogeneous Distribution ◽  
Alloy Nanoparticles ◽  
Electrocatalytic Reduction ◽  
Boron Doped Diamond ◽  
Buffer Solution ◽  
Bdd Electrode ◽  
Boron Doped ◽  
Dissolution Peak

ABSTRACTThis paper presents the study of the electrochemical deposition of Cu/Sn alloy nanoparticles on Boron Doped Diamond (BDD) films in order to improve their electrocatalytic activity and selectivity for application in nitrate electrochemical reduction. Cyclic voltammetry measurements evidenced the formation of Cu/Sn alloy electrodeposited on BDD electrode. The electrodeposited Cu/Sn can be better visualized by analyzing the dissolution process. By studying the dissolution peak separately, the dissolution peak of the Sn was obtained at a more positive potential, when compared with the dissolution peak of Cu. From the scanning electronic microscopy (SEM) analysis, the homogeneous distribution of the Cu/Sn alloys particles on BDD surface with grain size in nanometric scale was verified. From X-ray diffraction analysis, two Cu/Sn alloy phases (Cu41Sn11 and Cu10Sn3) were identified for the electrodeposits obtained at -0.5V and charge of 0.26 C. The electrocatalytic reduction of nitrate in 0.1 M Britton-Robinson (BR) buffer solution with pH 9 was analyzed. The BDD electrode modified with Cu/Sn alloy nanoparticles proved to potentiate the electrocatalytic reduction of nitrate.

Removal of herbicide 1-chloro-2,4-dinitrobenzene (DNCB) from aqueous solutions by electrochemical oxidation using boron-doped diamond (BDD) and PbO2 electrodes

2021 ◽  
Vol 402 ◽  
pp. 123850 ◽  
Author(s):  
José Eudes L. Santos ◽  
Martha A. Gómez ◽  
D. Chianca de Moura ◽  
M. Cerro-López ◽  
Marco A. Quiroz ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Electrochemical Oxidation ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Pbo2 Electrodes

Voltammetric determination of antifungal agents in pharmaceuticals and cosmetics using boron-doped diamond electrodes

2014 ◽  
Vol 6 (19) ◽  
pp. 7912-7922 ◽  
Author(s):  
Katarzyna Mielech-Łukasiewicz ◽  
Katarzyna Rogińska
Keyword(s):  
Antifungal Agents ◽  
Voltammetric Determination ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Ciclopirox Olamine ◽  
Bdd Electrode ◽  
Boron Doped

This paper presents attractive methods for the determination of ketoconazole and ciclopirox olamine. The recommended procedures are based on oxidation of the said compounds on the BDD electrode. The properties of this electrode and the usage of the SWV technique facilitated the development of sensitive and accuracy procedures intended to determine the selected antifungal agents.

scholarly journals Sensitive Voltammetric Detection of Chloroquine Drug by Applying a Boron-Doped Diamond Electrode

2020 ◽  
Vol 6 (4) ◽  
pp. 75
Author(s):  
Geiser Gabriel Oliveira ◽  
Déborah Christine Azzi ◽  
Tiago Almeida Silva ◽  
Paulo Roberto de Oliveira ◽  
Orlando Fatibello-Filho ◽  
...  
Keyword(s):  
Square Wave Voltammetry ◽  
Limit Of Detection ◽  
Boron Doped Diamond ◽  
Bdd Electrode ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Wave Voltammetry ◽  
Boron Doped Diamond Electrode ◽  
Analytical Curve ◽  
Voltammetric Detection

In this research, a boron-doped diamond (BDD) electrode has been explored to detect the chloroquine drug. The electrochemical performance of BDD electrode towards the irreversible anodic response of chloroquine was investigated by subjecting this electrode to the cathodic (−0.5 A cm−2 by 180 s, generating a predominantly hydrogen-terminated surface) and anodic (+0.5 A cm−2 by 30 s, oxygen-terminated surface) pretreatments. The cathodically pretreated BDD electrode ensured a better-defined anodic peak and higher current intensity. Thus, by applying the cathodically pretreated BDD electrode and square-wave voltammetry (SWV), the analytical curve was linear from 0.01 to 0.25 µmol L−1 (correlation coefficient of 0.994), with sensitivity and limit of detection of 12.2 µA L µmol−1 and 2.0 nmol−1, respectively. This nanomolar limit of detection is the lowest recorded so far with modified and unmodified electrodes.

scholarly journals Removal of the drug procaine from acidic aqueous solutions using a flow reactor with a boron-doped diamond anode

2019 ◽  
Vol 216 ◽  
pp. 65-73 ◽  
Author(s):  
Nathalia M.P. Queiroz ◽  
Ignasi Sirés ◽  
Carmem L.P.S. Zanta ◽  
Josealdo Tonholo ◽  
Enric Brillas
Keyword(s):  
Aqueous Solutions ◽  
Flow Reactor ◽  
Boron Doped Diamond ◽  
Boron Doped
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