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A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation
dc.creator | Presumido, Pedro H. | |
dc.creator | dos Santos, Lucrecio F. | |
dc.creator | Neuparth, Teresa | |
dc.creator | Santos, Miguel M. | |
dc.creator | Feliciano, Manuel | |
dc.creator | Primo, Ana | |
dc.creator | Garcia, Hermenegildo | |
dc.creator | Đolić, Maja | |
dc.creator | Vilar, Vitor J. P. | |
dc.date.accessioned | 2022-03-04T11:29:59Z | |
dc.date.available | 2022-03-04T11:29:59Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 1385-8947 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5019 | |
dc.description.abstract | This work presents a ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film 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, 17 beta-estradiol-E2, 17 alpha-ethinylestradiol-EE2 and amoxicillin-AMX) was prepared using Ultrapure water (UPW) or an urban wastewater after secondary treatment (UWW) fortified with 500 mu g 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. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS// | |
dc.rights | restrictedAccess | |
dc.source | Chemical Engineering Journal | |
dc.subject | Photocatalytic membrane reactor | en |
dc.subject | Nano-engineered membrane | en |
dc.subject | Membrane fouling | en |
dc.subject | Continuous photocatalytic thin-film | en |
dc.subject | Contaminants of emerging concern | en |
dc.title | A Novel ceramic tubular membrane coated with a continuous graphene-TiO2 nanocomposite thin-film for CECs mitigation | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.other | 430(): - | |
dc.citation.rank | aM21~ | |
dc.citation.volume | 430 | |
dc.identifier.doi | 10.1016/j.cej.2021.132639 | |
dc.identifier.scopus | 2-s2.0-85116633798 | |
dc.identifier.wos | 000730111800002 | |
dc.type.version | publishedVersion |