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Naslov:Defective TiO2 nanotube arrays for efficient photoelectrochemical degradation of organic pollutants
Avtorji:ID Machreki, Manel (Avtor)
ID Chouki, Takwa (Avtor)
ID Tyuliev, Georgi (Avtor)
ID Žigon, Dušan (Avtor)
ID Ohtani, Bunsho (Avtor)
ID Loukanov, Alexandre (Avtor)
ID Stefanov, Plamen (Avtor)
ID Emin, Saim (Avtor)
Datoteke:URL https://pubs.acs.org/doi/10.1021/acsomega.3c00820
 
.pdf Defective_TiO2_Nanotube_Arrays_for_Efficient_Photoelectrochemical_Degradation_of_Organic_Pollutants.pdf (3,97 MB)
MD5: 654E62779847B26E0BAB2574D0198FD2
 
.pdf acsomega.3c00820.pdf (4,22 MB)
MD5: CE97E51F69F87F2F48E65000C908DA57
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Oxygen vacancies (OVs) are one of the most critical factors that enhance the electrical and catalytic characteristics of metal oxide-based photo-electrodes. In this work, a simple procedure was applied to prepare reduced TiO 2 nanotube arrays (NTAs) (TiO 2−x) via a one-step reduction method using NaBH 4. A series of characterization techniques were used to study the structural, optical, and electronic properties of TiO 2−x NTAs. X-ray photoelectron spectroscopy confirmed the presence of defects in TiO 2−x NTAs. Photoacoustic measurements were used to estimate the electron-trap density in the NTAs. Photoelectrochemical studies show that the photocurrent density of TiO 2−x NTAs was nearly 3 times higher than that of pristine TiO 2. It was found that increasing OVs in TiO 2 affects the surface recombination centers, enhances electrical conductivity, and improves charge transport. For the first time, a TiO 2−x photoanode was used in the photo-electrochemical (PEC) degradation of a textile dye (basic blue 41, B41) and ibuprofen (IBF) pharmaceutical using in situ generated reactive chlorine species (RCS). Liquid chromatography coupled with mass spectrometry was used to study the mechanisms for the degradation of B41 and IBF. Phytotoxicity tests of B41 and IBF solutions were performed using Lepidium sativum L. to evaluate the potential acute toxicity before and after the PEC treatment. The present work provides efficient PEC degradation of the B41 dye and IBF in the presence of RCS without generating harmful products.
Ključne besede:TiO2, nanotube arrays, photoelectrochemical degradation, organic pollutants
Datum objave:01.01.2023
Leto izida:2023
Št. strani:str. 21605-21617
Številčenje:Vol. 8, issue 24
PID:20.500.12556/RUNG-8251-a2849b47-09e5-9913-7b12-8014569d129e Novo okno
COBISS.SI-ID:155275011 Novo okno
UDK:54
ISSN pri članku:2470-1343
DOI:10.1021/acsomega.3c00820 Novo okno
NUK URN:URN:SI:UNG:REP:QETAA8FO
Datum objave v RUNG:12.06.2023
Število ogledov:2441
Število prenosov:12
Metapodatki:XML DC-XML DC-RDF
:
MACHREKI, Manel, CHOUKI, Takwa, TYULIEV, Georgi, ŽIGON, Dušan, OHTANI, Bunsho, LOUKANOV, Alexandre, STEFANOV, Plamen in EMIN, Saim, 2023, Defective ▫$TiO_2$▫ nanotube arrays for efficient photoelectrochemical degradation of organic pollutants. ACS omega [na spletu]. 2023. Vol. 8, no. 24, p. 21605–21617. [Dostopano 11 april 2025]. DOI 10.1021/acsomega.3c00820. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=8251
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Gradivo je del revije

Naslov:ACS omega
Skrajšan naslov:ACS omega
Založnik:American Chemical Society
Leto izida:2023
ISSN:2470-1343
COBISS.SI-ID:525873945 Novo okno

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Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
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