A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation (2022)
- Authors:
- Autor USP: SANTOS, LUCRÉCIO FÁBIO DOS - EEL
- Unidade: EEL
- DOI: 10.1016/j.cej.2021.132639
- Assunto: FOTOCATÁLISE
- Keywords: Photocatalytic membrane reactor; Nano-engineered membrane; Membrane fouling; Continuous photocatalytic thin-film; Contaminants of emerging concern
- Agências de fomento:
- Language: Inglês
- Abstract: This work presents a ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thinfilm for contaminants of emerging concern (CECs) removal from synthetic and real matrices in single-pass flow-through operation. Microfiltration ceramic membranes were coated in situ with graphene (G)-TiO2-P25 nano-composite using two different methods: Membrane type A - TiO2-P25 incorporated in the G preparation stage (1% [MA-1], 2% [MA-2] and 3% [MA-3] [w/v]), and Membrane type B - TiO2-P25 thin-film uniformly coated over the G film surface (coating layers: 3 [MB-1], 6 [MB-2], and 9 [MB-3]). After the catalyst deposition and before the pyrolysis step, air was forced to pass through the membranes pores (inside-outside mode), providing a porous film. The CECs solution (diclofenac-DCF, 17β-estradiol-E2, 17α-ethinylestradiol-EE2 and amoxicillin-AMX) was prepared using Ultrapure water (UPW) or an urban wastewater after secondary treatment (UWW) fortified with 500 µg L− 1 of each CEC. Membranes were characterized by the following techniques: Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Fourier-Transform Infrared spectroscopy (FTIR), Diffuse Reflectance UV-Visible spectroscopy (DR UV-Vis) and Raman spectroscopy. The membranes coated with MA-3 and MB-2 catalyst films, irradiated by UVA light, showed the highest ability for CECs removal. Furthermore, the Relative flux reduction ratio (RFR) decreased around 45% in the absence of UVA light, owing to membrane fouling. The combination of filtration and oxidation (G-TiO2-UVA) provided a permeate with higher quality and minimized membrane fouling. Although membrane type B allowed for a permeate with higher quality, membrane type A provided a higher permeate flux.
- Imprenta:
- Source:
- Título do periódico: Chemical engineering journal
- ISSN: 13858947
- Volume/Número/Paginação/Ano: v.430, n.1 , p.132639-, 2022
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: green
- Licença: other-oa
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ABNT
PRESUMIDO, Pedro H. et al. A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation. Chemical engineering journal, v. 430, n. 1 , p. 132639-, 2022Tradução . . Disponível em: https://doi.org/10.1016/j.cej.2021.132639. Acesso em: 02 maio 2024. -
APA
Presumido, P. H., Santos, L. F., Neuparth, T., Santos, M. M., Feliciano, M., Primo, A., et al. (2022). A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation. Chemical engineering journal, 430( 1 ), 132639-. doi:10.1016/j.cej.2021.132639 -
NLM
Presumido PH, Santos LF, Neuparth T, Santos MM, Feliciano M, Primo A, Garcia H, B- 'OLI' MAJA, Vilar VJP. A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation [Internet]. Chemical engineering journal. 2022 ;430( 1 ): 132639-.[citado 2024 maio 02 ] Available from: https://doi.org/10.1016/j.cej.2021.132639 -
Vancouver
Presumido PH, Santos LF, Neuparth T, Santos MM, Feliciano M, Primo A, Garcia H, B- 'OLI' MAJA, Vilar VJP. A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation [Internet]. Chemical engineering journal. 2022 ;430( 1 ): 132639-.[citado 2024 maio 02 ] Available from: https://doi.org/10.1016/j.cej.2021.132639 - Análise da aplicabilidade do plano de gerenciamento de risco nas instituições de ensino superior
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Informações sobre o DOI: 10.1016/j.cej.2021.132639 (Fonte: oaDOI API)
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