Preparation and characterization of photocatalytically active bismuth iodate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F19%3A10244466" target="_blank" >RIV/61989100:27350/19:10244466 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/19:10244466 RIV/61989100:27710/19:10244466

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation and characterization of photocatalytically active bismuth iodate

Popis výsledku v původním jazyce

Bismuth iodate was prepared using a hydrothermal synthesis of Bi(NO3)3.5H2O and I2O5. The time effect of the hydrothermal synthesis (4, 24, 48 and 72 h) on the structure, specific surface area (SSA) and morphology of bismuth iodate particles, their optical properties and photodegradation activity were studied. A major phase presented in the prepared samples was BiIO4 of which crystallite size increased with the duration of the synthesis as revealed with X-ray powder diffraction method. The values of specific surface area decreased with increasing time of the thermal treatment. The particles size and their morphology changed from very fine particles stacked into fluffy agglomerates observed after 4 h to agglomerates of tabular particles observed after 72 h long synthesis. The photocatalytic performance of the prepared samples irradiated with UVA light was evaluated by the photodegradation of model organic dye acid orange 7. It was observed that with the increasing duration of the BiIO4 synthesis the photodegradation activity of resulting samples decreased. The photodegradation activity of BiIO4 prepared at 4 and 24 h was higher than that of TiO 2 P25 (Degussa).

Název v anglickém jazyce

Preparation and characterization of photocatalytically active bismuth iodate

Popis výsledku anglicky

Bismuth iodate was prepared using a hydrothermal synthesis of Bi(NO3)3.5H2O and I2O5. The time effect of the hydrothermal synthesis (4, 24, 48 and 72 h) on the structure, specific surface area (SSA) and morphology of bismuth iodate particles, their optical properties and photodegradation activity were studied. A major phase presented in the prepared samples was BiIO4 of which crystallite size increased with the duration of the synthesis as revealed with X-ray powder diffraction method. The values of specific surface area decreased with increasing time of the thermal treatment. The particles size and their morphology changed from very fine particles stacked into fluffy agglomerates observed after 4 h to agglomerates of tabular particles observed after 72 h long synthesis. The photocatalytic performance of the prepared samples irradiated with UVA light was evaluated by the photodegradation of model organic dye acid orange 7. It was observed that with the increasing duration of the BiIO4 synthesis the photodegradation activity of resulting samples decreased. The photodegradation activity of BiIO4 prepared at 4 and 24 h was higher than that of TiO 2 P25 (Degussa).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/GA16-10527S" target="_blank" >GA16-10527S: Nanostruktury na bázi garfitizovaného C3N4 pro fotokatalytický rozklad oxidu dusného</a><br>

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 statě ve sborníku

NANOCON 2018 : 10th Anniversary International Conference on Nanomaterials - research &amp;amp; application : conference proceedings : peer reviewed : October 17th-19th 2018, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-89-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

152-157

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

17. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000513131900026