Composites of BiVO4 and g-C3N4: Synthesis, Properties and Photocatalytic Decomposition of Azo Dye AO7 and Nitrous Oxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10242125" target="_blank" >RIV/61989100:27360/19:10242125 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/19:10242125 RIV/61989100:27740/19:10242125 RIV/44555601:13440/19:43894636

Výsledek na webu

<a href="https://doi.org/10.1007/s10904-019-01085-4" target="_blank" >https://doi.org/10.1007/s10904-019-01085-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10904-019-01085-4" target="_blank" >10.1007/s10904-019-01085-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Composites of BiVO4 and g-C3N4: Synthesis, Properties and Photocatalytic Decomposition of Azo Dye AO7 and Nitrous Oxide

Popis výsledku v původním jazyce

The composites of BiVO4 and g-C3N4 (BiVO4/g-C3N4) were synthesised by the calcination of a mixture of monoclinic BiVO4 and bulk g-C3N4 at 300 oC for 4 h. Both components were previously prepared by the precipitation of Bi(NO3)3 with NH4VO3 and annealing of melamine. X-ray photoelectron spectroscopy identified the presence of C-O and C=O bonds as well as metal nitrides which confirmed the formation of a heterojunction between BiVO4 and g-C3N4. The heterojunction was also indicated by UV-Vis diffuse reflectance and photoluminescence spectroscopy. The band gap energies were determined at 2.42-2.46 eV of BiVO4 and 2.75-2.82 eV of bulk g-C3N4. The specific surface area was 23-28 m2g-1 of the composites and 6 m2g-1 and 35 m2g-1 of pure BiVO4 and g-C3N4, respectively. The photocatalytic activity of the composites was investigated by the decomposition of Acod Orange 7 (AO7) and nitrous oxide. In case of AO7, the BiVO4/g-C3N4 (1:3) composite was the most active one and the main role in the reaction was played by photoinduced holes forming hydroxyl radicals. At the decomposition of N2O, the most important species were the photoinduced electrons and the BiVO4/g-C3N4 (1:1) composite was the most active photocatalyst.

Název v anglickém jazyce

Composites of BiVO4 and g-C3N4: Synthesis, Properties and Photocatalytic Decomposition of Azo Dye AO7 and Nitrous Oxide

Popis výsledku anglicky

The composites of BiVO4 and g-C3N4 (BiVO4/g-C3N4) were synthesised by the calcination of a mixture of monoclinic BiVO4 and bulk g-C3N4 at 300 oC for 4 h. Both components were previously prepared by the precipitation of Bi(NO3)3 with NH4VO3 and annealing of melamine. X-ray photoelectron spectroscopy identified the presence of C-O and C=O bonds as well as metal nitrides which confirmed the formation of a heterojunction between BiVO4 and g-C3N4. The heterojunction was also indicated by UV-Vis diffuse reflectance and photoluminescence spectroscopy. The band gap energies were determined at 2.42-2.46 eV of BiVO4 and 2.75-2.82 eV of bulk g-C3N4. The specific surface area was 23-28 m2g-1 of the composites and 6 m2g-1 and 35 m2g-1 of pure BiVO4 and g-C3N4, respectively. The photocatalytic activity of the composites was investigated by the decomposition of Acod Orange 7 (AO7) and nitrous oxide. In case of AO7, the BiVO4/g-C3N4 (1:3) composite was the most active one and the main role in the reaction was played by photoinduced holes forming hydroxyl radicals. At the decomposition of N2O, the most important species were the photoinduced electrons and the BiVO4/g-C3N4 (1:1) composite was the most active photocatalyst.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

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)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Inorganic and Organometallic Polymers and Materials

ISSN

1574-1443

e-ISSN

—

Svazek periodika

29

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

1219-1234

Kód UT WoS článku

000471198700018

EID výsledku v databázi Scopus

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