The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.21577/0103-5053.20210076 http://hdl.handle.net/11449/222085 |
Resumo: | Nanocrystalline BiVO4 on monoclinic phase was obtained by a modified-solution combustion synthesis (SCS) using poly(ethylene glycol) (PEG 6000) and polyvinylpyrrolidone (PVP) as stabilizing and surfactant agents, respectively. An active photoanode was built using a simple procedure by dip-coating deposition process on fluorine-doped tin dioxide (FTO). The structure, morphology and optical properties of FTO/BiVO4 photoanode were evaluated by means of X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and diffuse reflectance UV-Vis spectroscopy. The photoelectrochemical performance measurements were carried out by linear sweep voltammetry (LSV), chronoamperometry and electrochemical impedance spectroscopy (EIS) under InGaN blue light emitting diode (LED) illumination condition (about 450 nm). In Na2SO4 electrolyte solution, the electrode has presented better photoelectroactivity than in NaNO3 solution, as evidenced by photoelectrochemical parameters such as: The highest photocurrent density (js) value, cathodic shifts of the onset potential (OP) and lower charge-transfer resistence (Rct). In the methyl orange (MO) degradation reaction the FTO/BiVO4 electrode has presented high photoelectroactivity, where the estimated kinetic constant rate (kobs) is 4.74 × 10-3 and 7.54 × 10-3 min-1 in NaNO3 and Na2SO4 solutions, respectively. This remarkable performance of the as-prepared electrode is due to the morphological BiVO4 structure, with elongated-shape nano-sized domain particles, besides the considerable porosity and roughness levels on electrode surface. |
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Repositório Institucional da UNESP |
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The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structureDip-coating processMonoclinic BiVO4PEG 6000Photoelectrochemical performancePVPSCSNanocrystalline BiVO4 on monoclinic phase was obtained by a modified-solution combustion synthesis (SCS) using poly(ethylene glycol) (PEG 6000) and polyvinylpyrrolidone (PVP) as stabilizing and surfactant agents, respectively. An active photoanode was built using a simple procedure by dip-coating deposition process on fluorine-doped tin dioxide (FTO). The structure, morphology and optical properties of FTO/BiVO4 photoanode were evaluated by means of X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and diffuse reflectance UV-Vis spectroscopy. The photoelectrochemical performance measurements were carried out by linear sweep voltammetry (LSV), chronoamperometry and electrochemical impedance spectroscopy (EIS) under InGaN blue light emitting diode (LED) illumination condition (about 450 nm). In Na2SO4 electrolyte solution, the electrode has presented better photoelectroactivity than in NaNO3 solution, as evidenced by photoelectrochemical parameters such as: The highest photocurrent density (js) value, cathodic shifts of the onset potential (OP) and lower charge-transfer resistence (Rct). In the methyl orange (MO) degradation reaction the FTO/BiVO4 electrode has presented high photoelectroactivity, where the estimated kinetic constant rate (kobs) is 4.74 × 10-3 and 7.54 × 10-3 min-1 in NaNO3 and Na2SO4 solutions, respectively. This remarkable performance of the as-prepared electrode is due to the morphological BiVO4 structure, with elongated-shape nano-sized domain particles, besides the considerable porosity and roughness levels on electrode surface.Colégio Técnico Industrial Faculdade de Engenharia Universidade Estadual PaulistaDepartamento de Física Faculdade de Ciências Universidade Estadual PaulistaDepartamento de Química Universidade Estadual de LondrinaColégio Técnico Industrial Faculdade de Engenharia Universidade Estadual PaulistaDepartamento de Física Faculdade de Ciências Universidade Estadual PaulistaUniversidade Estadual Paulista (UNESP)Universidade Estadual de Londrina (UEL)Pelissari, Marcelo R.S. [UNESP]Scalvi, Luis Vicente A. [UNESP]Dall'Antonia, Luiz Henrique2022-04-28T19:42:14Z2022-04-28T19:42:14Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1851-1864http://dx.doi.org/10.21577/0103-5053.20210076Journal of the Brazilian Chemical Society, v. 32, n. 9, p. 1851-1864, 2021.1678-47900103-5053http://hdl.handle.net/11449/22208510.21577/0103-5053.202100762-s2.0-85111532255Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/openAccess2022-04-28T19:42:14Zoai:repositorio.unesp.br:11449/222085Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:11:51.837025Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
title |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
spellingShingle |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure Pelissari, Marcelo R.S. [UNESP] Dip-coating process Monoclinic BiVO4 PEG 6000 Photoelectrochemical performance PVP SCS |
title_short |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
title_full |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
title_fullStr |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
title_full_unstemmed |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
title_sort |
The role of peg 6000 and pvp as stabilizing and surfactant agents in the photoelectrochemical properties of bivo4 monoclinic structure |
author |
Pelissari, Marcelo R.S. [UNESP] |
author_facet |
Pelissari, Marcelo R.S. [UNESP] Scalvi, Luis Vicente A. [UNESP] Dall'Antonia, Luiz Henrique |
author_role |
author |
author2 |
Scalvi, Luis Vicente A. [UNESP] Dall'Antonia, Luiz Henrique |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Estadual de Londrina (UEL) |
dc.contributor.author.fl_str_mv |
Pelissari, Marcelo R.S. [UNESP] Scalvi, Luis Vicente A. [UNESP] Dall'Antonia, Luiz Henrique |
dc.subject.por.fl_str_mv |
Dip-coating process Monoclinic BiVO4 PEG 6000 Photoelectrochemical performance PVP SCS |
topic |
Dip-coating process Monoclinic BiVO4 PEG 6000 Photoelectrochemical performance PVP SCS |
description |
Nanocrystalline BiVO4 on monoclinic phase was obtained by a modified-solution combustion synthesis (SCS) using poly(ethylene glycol) (PEG 6000) and polyvinylpyrrolidone (PVP) as stabilizing and surfactant agents, respectively. An active photoanode was built using a simple procedure by dip-coating deposition process on fluorine-doped tin dioxide (FTO). The structure, morphology and optical properties of FTO/BiVO4 photoanode were evaluated by means of X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and diffuse reflectance UV-Vis spectroscopy. The photoelectrochemical performance measurements were carried out by linear sweep voltammetry (LSV), chronoamperometry and electrochemical impedance spectroscopy (EIS) under InGaN blue light emitting diode (LED) illumination condition (about 450 nm). In Na2SO4 electrolyte solution, the electrode has presented better photoelectroactivity than in NaNO3 solution, as evidenced by photoelectrochemical parameters such as: The highest photocurrent density (js) value, cathodic shifts of the onset potential (OP) and lower charge-transfer resistence (Rct). In the methyl orange (MO) degradation reaction the FTO/BiVO4 electrode has presented high photoelectroactivity, where the estimated kinetic constant rate (kobs) is 4.74 × 10-3 and 7.54 × 10-3 min-1 in NaNO3 and Na2SO4 solutions, respectively. This remarkable performance of the as-prepared electrode is due to the morphological BiVO4 structure, with elongated-shape nano-sized domain particles, besides the considerable porosity and roughness levels on electrode surface. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-04-28T19:42:14Z 2022-04-28T19:42:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.21577/0103-5053.20210076 Journal of the Brazilian Chemical Society, v. 32, n. 9, p. 1851-1864, 2021. 1678-4790 0103-5053 http://hdl.handle.net/11449/222085 10.21577/0103-5053.20210076 2-s2.0-85111532255 |
url |
http://dx.doi.org/10.21577/0103-5053.20210076 http://hdl.handle.net/11449/222085 |
identifier_str_mv |
Journal of the Brazilian Chemical Society, v. 32, n. 9, p. 1851-1864, 2021. 1678-4790 0103-5053 10.21577/0103-5053.20210076 2-s2.0-85111532255 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Chemical Society |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1851-1864 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129498545127424 |