@Article{SantosSilvOishFerr:2019:ElMiNa,
author = "Santos, Marta dos and Silva, Raissa Samira Rocha da and Oishi,
Silvia Sizuka and Ferreira, Neiden{\^e}i Gomes",
affiliation = "{Faculdade de Tecnologia do Estado de S{\~a}o Paulo (FATEC)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Eletrodos de micro e nanodiamante dopados com boro aplicados na
degrada{\c{c}}{\~a}o do composto org{\^a}nico bentazona",
journal = "Revista Virtual de Qu{\'{\i}}mica",
year = "2019",
volume = "11",
number = "6",
pages = "1659--1681",
month = "nov./dez.",
note = "{Boron-Doped Micro and Nanodiamond Electrodes Applied in the} and
{Degradation of Organic Compound Bentazon}",
keywords = "Microcrystalline Diamond electrode, nanocrystalline diamond
electrode, bentazon organic compound, electrochemical degradation,
Eletrodo de diamante microcristalino, eletrodo de diamante
nanocristalino, composto org{\^a}nico bentazona,
degrada{\c{c}}{\~a}o eletroqu{\'{\i}}mica.",
abstract = "Micro and nanocrystalline diamond electrodes (BDD and BDND,
respectively) doped with boron were grown by the CVD (Chemical
Vapor Deposition) diamond deposition technique. The electrodes are
characterized morphologically, structurally and electrochemically.
These BDD and BDND electrodes were used in the study of the
electrochemical degradation of the bentazon organic compound
previously purified from the commercial herbicide Basagran® 600
Herbicide [Composition: 3-isopropyl-1H-2,1,3-benzothiadiazin-4
(3H) -one-2,2-dioxide (Bentazon) - 600 g/L (60.0 % w/v) and other
ingredients - 630 g/L (63.0 % w/v)]. The results indicated that
during the degradation several intermediates are created at the
same time as the formation of isosbestic points occurs, indicating
that during the degradation there is the formation of acid-base
and/or tautomeric balance between the intermediates formed. NDDB
electrode was the most effective in the electrolysis process of
the organic compound bentazon, presenting 60.14 % of
mineralization in the current density of 50 mA.cm-2. RESUMO:
Eletrodos de diamante micro e nanocristalinos (DDB e NDDB,
respectivamente) dopados com boro foram crescidos pela
t{\'e}cnica de deposi{\c{c}}{\~a}o de diamante CVD (Chemical
Vapor Deposition). Os eletrodos foram caracterizados
morfologicamente, estruturalmente e eletroquimicamente. Os
eletrodos DDB e NDDB foram utilizados no estudo da
degrada{\c{c}}{\~a}o eletroqu{\'{\i}}mica do composto
org{\^a}nico bentazona, previamente purificado a partir do
herbicida comercial Basagran® 600 Herbicida
[Composi{\c{c}}{\~a}o: 3-isopropyl-1
H-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide (Bentazona) - 600
g/L (60,0 % m/v) e outros ingredientes - 630 g/L (63,0 % m/v)]. Os
resultados obtidos indicaram que durante a degrada{\c{c}}{\~a}o
v{\'a}rios intermedi{\'a}rios s{\~a}o criados ao mesmo tempo
que ocorre a forma{\c{c}}{\~a}o de pontos isosb{\'e}sticos,
indicando que durante a degrada{\c{c}}{\~a}o existe a
forma{\c{c}}{\~a}o de equil{\'{\i}}brio {\'a}cido-base e/ou
tautom{\'e}rico entre os intermedi{\'a}rios formados. O eletrodo
de NDDB foi o mais eficaz no processo de eletr{\'o}lise do
composto org{\^a}nico bentazona, apresentando 60,14 % de
mineraliza{\c{c}}{\~a}o na densidade de corrente de 50
mA.cm-2.",
doi = "10.21577/1984-6835.20190117",
url = "http://dx.doi.org/10.21577/1984-6835.20190117",
issn = "1984-6835",
language = "pt",
targetfile = "santos_eletrodos.pdf",
urlaccessdate = "28 mar. 2024"
}