Novel perspectives of laser ablation in liquids: the formation of a high-pressure orthorhombic FeS phase and absorption of FeS-derived colloids on a porous surface for solar-light photocatalytic wastewater cleaning.

Křenek, T.; Vála, L.; Kovařik, T.; Medlín, R.; Fajgar, Radek; Pola, Josef; Jandová, Věra; Vavruňková, V.; Pola, M.; Koštejn, Martin

doi:https://dx.doi.org/10.1039/D0DT01999B

Number of the records: 1

Novel perspectives of laser ablation in liquids: the formation of a high-pressure orthorhombic FeS phase and absorption of FeS-derived colloids on a porous surface for solar-light photocatalytic wastewater cleaning.

1.

SYSNO ASEP	0531964
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Novel perspectives of laser ablation in liquids: the formation of a high-pressure orthorhombic FeS phase and absorption of FeS-derived colloids on a porous surface for solar-light photocatalytic wastewater cleaning.
Author(s)	Křenek, T. (CZ) Vála, L. (CZ) Kovařik, T. (CZ) Medlín, R. (CZ) Fajgar, Radek (UCHP-M)_{RID, ORCID, SAI} Pola, Josef (UCHP-M)_{RID, ORCID, SAI} Jandová, Věra (UCHP-M)_{RID, ORCID, SAI} Vavruňková, V. (CZ) Pola, M. (CZ) Koštejn, Martin (UCHP-M)_{RID, SAI, ORCID}
Source Title	Dalton Transactions. - : Royal Society of Chemistry - ISSN 1477-9226 Roč. 49, č. 38 (2020), s. 13262-13275
Number of pages	14 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	iron sulfide ; thermal-decomposition ; silver nanoparticles
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
Method of publishing	Limited access
Institutional support	UCHP-M - RVO:67985858
UT WOS	000575307000007
EID SCOPUS	85092245700
DOI	10.1039/D0DT01999B
Annotation	A pulsed Nd:YAG laser ablation of FeS in water and ethanol produces FeS-derived colloidal nanoparticles which absorb onto immersed porous ceramic substrates and create solar-light photocatalytic surfaces. The stability, size distribution and zeta potential of the nanoparticles were assessed by Dynamic light scattering. Raman, UV-Vis and XP spectroscopy and electron microscopy reveal that the sol nanoparticles have their outmost layer composed of ferrous and ferric sulphates and those produced in water are made of high-pressure orthorhombic FeS, cubic magnetite Fe3O4 and tetragonal maghemite γ-Fe2O3, while those formed in ethanol contain hexagonal FeS and cubic magnetite Fe3O4. Both colloids absorb solar light and their adsorption to porous ceramic surfaces creates functionalized ceramic surfaces which induce Methylene blue degradation by the day light. The laser induced process thus offers easy and efficient way for functionalization of porous surfaces by photocatalytic nanoparticles which avoid aggregation in liquid phase. The formation of orthorhombic high-pressure FeS phase stable under ambient condition is the first example of high-pressure structures produced by laser ablation in liquid without assistance of electric field.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2021
Electronic address	http://hdl.handle.net/11104/0312108

Number of the records: 1