Enhanced 4-chlorophenol Degradation under Visible and Solar Radiation through TiO2/g-C3N4 Z-Scheme Heterojunction (2023)
- Authors:
- USP affiliated authors: RODRIGUES, LIANA ALVARES - EEL ; MORAES, NÍCOLAS PERCIANI DE - IQSC
- Unidades: EEL; IQSC
- DOI: 10.33263/BRIAC133.203
- Assunto: FOTOCATÁLISE
- Keywords: titanium dioxide; graphitic carbon nitride; photocatalysis; 4-chlorophenol; Z-scheme heterojunction
- Agências de fomento:
- Language: Inglês
- Abstract: The efficient remediation of the persistent organic pollutant known as 4-chlorophenol (4CP) in aqueous effluent presents a challenge for a wide array of industries due to its elevated toxicity and resistance to natural degradation processes. This study proposes the development of a hybrid photocatalyst composed of titanium dioxide (TiO2) and graphitic carbon nitride (g-C3N4), aiming to increase the efficiency of photocatalytic degradation of 4CP under solar and visible radiation through the formation of Z-scheme heterojunction between the semiconductors. The results showed that the synthesis of the TiO2/g-C3N4 binary material was successful by X-ray diffractometry and infrared spectrometry. Furthermore, the addition of g-C3N4 to TiO2 led to optical and morphological modifications, such as the pore volume increase and gap energy of TiO2/g-C3N4. Concerning the photocatalytic evaluation, the main results indicate that photocatalytic activity under visible radiation of the TiO2/g-C3N4 improved by 44.8% compared to pure TiO2, whereas an improvement of 30.5% was obtained under simulated solar radiation. This improvement in efficiency was further corroborated by chronoamperometry tests, which demonstrated a higher photocurrent generation for the TiO2/g-C3N4. The radical generation mechanism suggested the creation of an effective Z-scheme heterojunction between the semiconductors, as the formation of both hydroxyl and superoxide radicals was observed.
- Imprenta:
- Source:
- Título do periódico: Biointerface research in applied chemistry
- ISSN: 2069-5837
- Volume/Número/Paginação/Ano: v.13, n.3, p.1-18, art. 203, 2023
- Este periódico é de acesso aberto
- Este artigo é de acesso aberto
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- Cor do Acesso Aberto: gold
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ABNT
RODRIGUES, Karla Faquine et al. Enhanced 4-chlorophenol Degradation under Visible and Solar Radiation through TiO2/g-C3N4 Z-Scheme Heterojunction. Biointerface research in applied chemistry, v. 13, n. 3, p. 1-18, 2023Tradução . . Disponível em: https://doi.org/10.33263/BRIAC133.203. Acesso em: 10 jun. 2024. -
APA
Rodrigues, K. F., Moraes, N. P. de, Santos, A. S. dos, Montanheiro, T. L. do A., Campos, T. M. B., Thim, G. P., et al. (2023). Enhanced 4-chlorophenol Degradation under Visible and Solar Radiation through TiO2/g-C3N4 Z-Scheme Heterojunction. Biointerface research in applied chemistry, 13( 3), 1-18. doi:10.33263/BRIAC133.203 -
NLM
Rodrigues KF, Moraes NP de, Santos AS dos, Montanheiro TL do A, Campos TMB, Thim GP, Rodrigues LA, Brunelli DD. Enhanced 4-chlorophenol Degradation under Visible and Solar Radiation through TiO2/g-C3N4 Z-Scheme Heterojunction [Internet]. Biointerface research in applied chemistry. 2023 ;13( 3): 1-18.[citado 2024 jun. 10 ] Available from: https://doi.org/10.33263/BRIAC133.203 -
Vancouver
Rodrigues KF, Moraes NP de, Santos AS dos, Montanheiro TL do A, Campos TMB, Thim GP, Rodrigues LA, Brunelli DD. Enhanced 4-chlorophenol Degradation under Visible and Solar Radiation through TiO2/g-C3N4 Z-Scheme Heterojunction [Internet]. Biointerface research in applied chemistry. 2023 ;13( 3): 1-18.[citado 2024 jun. 10 ] Available from: https://doi.org/10.33263/BRIAC133.203 - Structure-directing ability of the kraft-lignin/cellulose carbon xerogel for the development of C-Nb2O5 sunlight-active photocatalysts
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Informações sobre o DOI: 10.33263/BRIAC133.203 (Fonte: oaDOI API)
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