Formation of iron sulfide photocatalytic colloidal dispersion via pulsed laser ablation in liquids

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F19%3A43957271" target="_blank" >RIV/49777513:23210/19:43957271 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23640/19:43957271 RIV/67985858:_____/19:00547308

Výsledek na webu

<a href="http://hdl.handle.net/11025/43147" target="_blank" >http://hdl.handle.net/11025/43147</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/613/1/012034" target="_blank" >10.1088/1757-899X/613/1/012034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Formation of iron sulfide photocatalytic colloidal dispersion via pulsed laser ablation in liquids

Popis výsledku v původním jazyce

Pulsed laser irradiation of iron sulfide in water and ethanol allows laser ablation and generation of FeS nano/micro particles. Measurement of the size distribution reveals 100, 1000 and 5000 nm sized particles in water and 180 nm sized particles in ethanol. The values of zeta potential: 13.2 mV for colloid in water confirm incipient stability and tendency for coagulation whereas the value: -40.6 mV shows good stability of ablatively achieved nanoparticles in ethanol. SEM analyses of particles obtained by evaporation of solvents on Ta substrate revealed shapeless, roundshape and sheet-like morphology of agglomerates whose size span from units up to tens of μm. Also spherical particles sized around tens of nm were detected. EDX shows Fe/S ratio ~3.25 and ~ 1.2 for particles ablated in water and ethanol respectively. Raman spectroscopy indicates the formation of mackinawite (Fe1+xS) and pyrrhotite (Fe1-xS) phase. The photocatalytic effect of prepared water colloid was tested in methylene blue (MB) degradation under the daylight.

Název v anglickém jazyce

Formation of iron sulfide photocatalytic colloidal dispersion via pulsed laser ablation in liquids

Popis výsledku anglicky

Pulsed laser irradiation of iron sulfide in water and ethanol allows laser ablation and generation of FeS nano/micro particles. Measurement of the size distribution reveals 100, 1000 and 5000 nm sized particles in water and 180 nm sized particles in ethanol. The values of zeta potential: 13.2 mV for colloid in water confirm incipient stability and tendency for coagulation whereas the value: -40.6 mV shows good stability of ablatively achieved nanoparticles in ethanol. SEM analyses of particles obtained by evaporation of solvents on Ta substrate revealed shapeless, roundshape and sheet-like morphology of agglomerates whose size span from units up to tens of μm. Also spherical particles sized around tens of nm were detected. EDX shows Fe/S ratio ~3.25 and ~ 1.2 for particles ablated in water and ethanol respectively. Raman spectroscopy indicates the formation of mackinawite (Fe1+xS) and pyrrhotite (Fe1-xS) phase. The photocatalytic effect of prepared water colloid was tested in methylene blue (MB) degradation under the daylight.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>

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 statě ve sborníku

IOP Conference Series: Materials Science and Engineering

ISBN

—

ISSN

1757-8981

e-ISSN

1757-899X

Počet stran výsledku

6

Strana od-do

"NESTRÁNKOVÁNO"

Název nakladatele

IOP Publishing Ltd.

Místo vydání

Bristol

Místo konání akce

Miskolc-Lillafured

Datum konání akce

8. 10. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—