Fast plasma nanomodification of graphitic carbon nitride by amide and carboxyl groups for enhanced sulfamethoxazole degradation in wastewater: detailed experimental and DFT study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00141091" target="_blank" >RIV/00216224:14310/25:00141091 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1039/D4TA08613A" target="_blank" >https://doi.org/10.1039/D4TA08613A</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4ta08613a" target="_blank" >10.1039/d4ta08613a</a>
Alternative languages
Result language
angličtina
Original language name
Fast plasma nanomodification of graphitic carbon nitride by amide and carboxyl groups for enhanced sulfamethoxazole degradation in wastewater: detailed experimental and DFT study
Original language description
In this study, we developed an efficient plasma nanomodification strategy of graphitic carbon nitride (gCN) prepared from melamine (M-gCN) and 3-amino-1,2,4-triazole (3AT-gCN). For the first time, we report the surface functionalization of gCN by amide (CONH2) groups formed simultaneously with carboxyl (COOH) groups and amine (NH2) groups. The plasma treatment was performed using a large-area surface low-temperature plasma generated in the open air, proving to be a non-destructive, rapid (4 minutes), and environmentally friendly approach for enhancing the photocatalytic efficacy of gCN. To comprehensively examine the effect of nanomodification, we conducted deep X-ray Photoelectron Spectroscopy (XPS) analysis complemented by Density Functional Theory (DFT) simulations. The surface functionalization has profound impact on the electronic properties of plasma-treated samples (M-gCN-PT and 3AT-gCN-PT) as demonstrated by valence band XPS spectra. The plasma nanomodification led to pronounced separation and migration of photogenerated charge carriers. These findings have been supported by the efficient degradation of sulfamethoxazole (SMX), both with and without the presence of peroxymonosulfate (PMS), showcasing significant SMX removal of 88% (M-gCN-PT) and 76% (3AT-gCN-PT) after 2 h in pure water or 83% (M-gCN-PT) and 71% (3AT-gCN-PT) after 12 h in effluents from a municipal wastewater treatment plant (WWTP) in Bratislava.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20506 - Coating and films
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Chemistry A
ISSN
2050-7488
e-ISSN
2050-7496
Volume of the periodical
13
Issue of the periodical within the volume
19
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
13909-13923
UT code for WoS article
001457757100001
EID of the result in the Scopus database
2-s2.0-105002351170