Photocatalytic Degradation of Selected Pharmaceuticals Using g-C3N4 and TiO2 Nanomaterials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10242513" target="_blank" >RIV/61989100:27360/19:10242513 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/19:10242513

Výsledek na webu

<a href="https://doi.org/10.3390/nano9091240" target="_blank" >https://doi.org/10.3390/nano9091240</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano9091194" target="_blank" >10.3390/nano9091194</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic Degradation of Selected Pharmaceuticals Using g-C3N4 and TiO2 Nanomaterials

Popis výsledku v původním jazyce

Exfoliated graphitic carbon nitride (g-C3N4) and two commercially available nanomaterials from titanium dioxide (P25 and CG300) were tested for the photocatalytic degradation of paracetamol, ibuprofen, and diclofenac. Prior to photocatalytic experiments, the nanomaterials were characterized by common methods, such as X-ray diraction, UV-VIS diuse reflectance spectroscopy, Fourier transformed infrared spectroscopy in attenuated total reflection mode, transmission electron microscopy physisorption of nitrogen, and dynamic vapor adsorption of water. The sizes and specific surface area of the TiO2 nanoparticles were 6 nm and 300 m2/g for CG300 and 21 nm and 50 m2g1 for P25. The SSA of g-C3N4 was 140 m2/g. All photocatalytic experiments were performed under UV (368 nm), as well as VIS (446 nm) irradiation. TiO2 P25 was the most active photocatalyst under UV irradiation and g-C3N4 was the most active one under VIS irradiation. Photodegradation yields were evaluated by means of high performance liquid chromatography and reaction intermediates were identified using gas chromatography with mass detection. Paracetamol and ibuprofen were totally removed but the intermediates of diclofenac were observed even after 6 h of irradiation. Some intermediates, such as carbazole-1-acetic acid, 2,6-dichloraniline, and hydroxylated derivates of diclofenac were identified. This study showed that g-C3N4 is a promising photocatalyst for the degradation of pharmaceuticals in an aqueous environment, under visible light.

Název v anglickém jazyce

Photocatalytic Degradation of Selected Pharmaceuticals Using g-C3N4 and TiO2 Nanomaterials

Popis výsledku anglicky

Exfoliated graphitic carbon nitride (g-C3N4) and two commercially available nanomaterials from titanium dioxide (P25 and CG300) were tested for the photocatalytic degradation of paracetamol, ibuprofen, and diclofenac. Prior to photocatalytic experiments, the nanomaterials were characterized by common methods, such as X-ray diraction, UV-VIS diuse reflectance spectroscopy, Fourier transformed infrared spectroscopy in attenuated total reflection mode, transmission electron microscopy physisorption of nitrogen, and dynamic vapor adsorption of water. The sizes and specific surface area of the TiO2 nanoparticles were 6 nm and 300 m2/g for CG300 and 21 nm and 50 m2g1 for P25. The SSA of g-C3N4 was 140 m2/g. All photocatalytic experiments were performed under UV (368 nm), as well as VIS (446 nm) irradiation. TiO2 P25 was the most active photocatalyst under UV irradiation and g-C3N4 was the most active one under VIS irradiation. Photodegradation yields were evaluated by means of high performance liquid chromatography and reaction intermediates were identified using gas chromatography with mass detection. Paracetamol and ibuprofen were totally removed but the intermediates of diclofenac were observed even after 6 h of irradiation. Some intermediates, such as carbazole-1-acetic acid, 2,6-dichloraniline, and hydroxylated derivates of diclofenac were identified. This study showed that g-C3N4 is a promising photocatalyst for the degradation of pharmaceuticals in an aqueous environment, under visible light.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanomaterials

ISSN

2079-4991

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

1194

Kód UT WoS článku

000489101900011

EID výsledku v databázi Scopus

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