NiO-modified dioctahedral micas for photocatalytic hydrogen generation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F26%3A00646469" target="_blank" >RIV/68145535:_____/26:00646469 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.inoche.2026.116346" target="_blank" >https://doi.org/10.1016/j.inoche.2026.116346</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.inoche.2026.116346" target="_blank" >10.1016/j.inoche.2026.116346</a>

Jazyk výsledku

angličtina

Název v původním jazyce

NiO-modified dioctahedral micas for photocatalytic hydrogen generation

Popis výsledku v původním jazyce

Due to the structural similarity between muscovite and illite, but their different behaviour when heated, their dehydroxylated forms after calcination at 600 °C were investigated as carriers for NiO particles. This work presents the first comparison of muscovite (Ms1) and illite as a muscovite-like structure (Ms2) in terms of their photocatalytic properties in photocatalytic hydrogen generation. Photocatalytic tests performed in a batch photoreactor, together with material characterization (XRD, IR, thermal analysis, and Raman spectroscopy), confirmed the excellent efficiency of illite, which was associated with its structural properties, higher TiO2 a Fe2O3 content, and larger specific surface area. The observed differences in photocatalytic behaviour indicate that the structural properties of muscovite and illite, the degree of dehydroxylation, and surface modification with methanol in methanol-water mixture significantly affect both the activity and stability of these 2:1 dioctahedral clay minerals. After the photocatalytic test, the shift of the C–O band in Raman spectroscopy was evaluated for the change in hydrogen bonds in MeOH50. Ms2 in the form of a matrix in the NiO/Ms2 composite improved the arrangement of MeOH50 layers and, at the same time, after 24 h of UV irradiation exhibited the highest photocatalytic activity and stability in photocatalytic hydrogen generation (469 μmol/gcat.)

Název v anglickém jazyce

NiO-modified dioctahedral micas for photocatalytic hydrogen generation

Popis výsledku anglicky

Due to the structural similarity between muscovite and illite, but their different behaviour when heated, their dehydroxylated forms after calcination at 600 °C were investigated as carriers for NiO particles. This work presents the first comparison of muscovite (Ms1) and illite as a muscovite-like structure (Ms2) in terms of their photocatalytic properties in photocatalytic hydrogen generation. Photocatalytic tests performed in a batch photoreactor, together with material characterization (XRD, IR, thermal analysis, and Raman spectroscopy), confirmed the excellent efficiency of illite, which was associated with its structural properties, higher TiO2 a Fe2O3 content, and larger specific surface area. The observed differences in photocatalytic behaviour indicate that the structural properties of muscovite and illite, the degree of dehydroxylation, and surface modification with methanol in methanol-water mixture significantly affect both the activity and stability of these 2:1 dioctahedral clay minerals. After the photocatalytic test, the shift of the C–O band in Raman spectroscopy was evaluated for the change in hydrogen bonds in MeOH50. Ms2 in the form of a matrix in the NiO/Ms2 composite improved the arrangement of MeOH50 layers and, at the same time, after 24 h of UV irradiation exhibited the highest photocatalytic activity and stability in photocatalytic hydrogen generation (469 μmol/gcat.)

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2026

Kód důvěrnosti údajů

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

Název periodika

Inorganic Chemistry Communications

ISSN

1387-7003

e-ISSN

1879-0259

Svazek periodika

186

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

116346

Kód UT WoS článku

001699378900001

EID výsledku v databázi Scopus

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