An SEM-EDX and Raman spectroscopic study of the fibrous arsenate mineral liskeardite and its comparison with other arsenates kaňkite, scorodite and yvonite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F15%3A86094962" target="_blank" >RIV/61989100:27350/15:86094962 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.saa.2015.07.005" target="_blank" >http://dx.doi.org/10.1016/j.saa.2015.07.005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.saa.2015.07.005" target="_blank" >10.1016/j.saa.2015.07.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An SEM-EDX and Raman spectroscopic study of the fibrous arsenate mineral liskeardite and its comparison with other arsenates kaňkite, scorodite and yvonite

Popis výsledku v původním jazyce

The mineral liskeardite, an arsenate mineral with major cations of iron and aluminium, has been studied by a combination of scanning electron microscopy with energy dispersive spectroscopy and Raman spectroscopy. The mineral shows a fibrous nature. Semi-quantitative chemical analysis shows an Al and Fe arsenate phase with minor amounts of K, Cu, S and Si. Scanning electron microscopy shows a fibrous material. Intense Raman bands at 893, 867 and 843 cm-1 are assigned to the v1 and v3 AsO4 3- and HOAsO3 2- symmetric and antisymmetric stretching vibrations. Raman bands are observed at 514, 499, 485 and 477 cm-1 and are assigned to the m4 out of plane bending modes of the AsO4 3- and HOAsO3 2- units. The series of bands at 373, 356 and 343 cm-1 are assigned to the v2 symmetric bending modes. Two groups of OH stretching bands are observed and assigned to OH unit and water stretching vibrations. A comparison of the Raman spectrum of liskeardite with scorodite, kaňkite and yvonite is made.

Název v anglickém jazyce

An SEM-EDX and Raman spectroscopic study of the fibrous arsenate mineral liskeardite and its comparison with other arsenates kaňkite, scorodite and yvonite

Popis výsledku anglicky

The mineral liskeardite, an arsenate mineral with major cations of iron and aluminium, has been studied by a combination of scanning electron microscopy with energy dispersive spectroscopy and Raman spectroscopy. The mineral shows a fibrous nature. Semi-quantitative chemical analysis shows an Al and Fe arsenate phase with minor amounts of K, Cu, S and Si. Scanning electron microscopy shows a fibrous material. Intense Raman bands at 893, 867 and 843 cm-1 are assigned to the v1 and v3 AsO4 3- and HOAsO3 2- symmetric and antisymmetric stretching vibrations. Raman bands are observed at 514, 499, 485 and 477 cm-1 and are assigned to the m4 out of plane bending modes of the AsO4 3- and HOAsO3 2- units. The series of bands at 373, 356 and 343 cm-1 are assigned to the v2 symmetric bending modes. Two groups of OH stretching bands are observed and assigned to OH unit and water stretching vibrations. A comparison of the Raman spectrum of liskeardite with scorodite, kaňkite and yvonite is made.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

ISSN

1386-1425

e-ISSN

—

Svazek periodika

151

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

566-575

Kód UT WoS článku

000361861300072

EID výsledku v databázi Scopus

2-s2.0-84936768936