Mössbauer Spectral Studies of Natural Substituted Spinels

Russo, Umberto; Carbonin, S.; Giusta, A. Della

doi:10.1007/978-1-4899-1763-8_9

Cited by 11 publications

(2 citation statements)

References 17 publications

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“…FeAl2O4 is a mixed oxide normal spinel, where one eighth of the tetrahedral sites is occupied by Fe 2+ cations and one half of the octahedral sites are occupied by Al 3+ cations. Sometimes, depending on the synthetic process, the Fe 2+ cations can also occupy octahedral sites [21].…”

Section: Introductionmentioning

confidence: 99%

Dialysis and photo-electrodialysis processes using new synthesized polymeric membranes for the selective removal of bivalent cations

Bensaadi

Nasrallah

Amrane

et al. 2017

Journal of Environmental Chemical Engineering

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International audiencePolymer inclusion membranes (PIM) have emerged as a new technique for the ions selective separation. In this work, a novel class of membrane for the separation of M2+ ions (=Ni2+, Cu2+ and Zn2+) coupled with photo-electrodialysis was developed. The membrane was polymerized from cellulose triacetate (CTA) and other polymers (PVP, PEI or PEG), tri-ethyl hexyl phosphate (TEHP) was incorporated in the membrane as a plasticizer. The cellulose plasticized membranes were characterized by FTIR spectroscopy, scanning electron microscopy (SEM) and thermal analysis (TGA). Photoelectro-dialysis was performed under visible light. The M2+ transport across combined PIM with photo-electrode FeAl2O4 showed acceptable ions transport efficiency (33% after 3 h). The spinel oxide semi-conductor p-FeAl2O4 prepared from nitrates decomposition was synthesized by chemical route and characterized by X-ray diffraction (XRD). It absorbed over the whole solar spectrum, it is low cost, non-toxic and exhibited a chemical stability over a wide pH range

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Section: Introductionmentioning

confidence: 99%

Dialysis and photo-electrodialysis processes using new synthesized polymeric membranes for the selective removal of bivalent cations

Bensaadi

Nasrallah

Amrane

et al. 2017

Journal of Environmental Chemical Engineering

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“…This formula describes the spinel compound with normal cation distribution which means that all the divalent cations occupy tetrahedral sites (T d ), whereas all the trivalent cations are located in the octahedral environment (O h ) [1]. However, the intersite exchange of the cations is possible, for example hercynite crystal lattice commonly contains Fe 3+ cations in the O h sites as a result of the formation process [2][3][4]. Furthermore, Al 3+ ion occurrence in T d sites is also feasible.…”

Section: Introductionmentioning

confidence: 99%

Crystal structure and Mössbauer study of FeAl₂O₄

et al. 2015

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Abstract. In this work the synthesis of hercynite from Fe 2 O 3 and Al 2 O 3 powders was carried out by arc-melting method under the protective argon atmosphere. The obtained material was characterized with the use of powder X-ray diffractometry (XRD) and Mössbauer spectroscopy (MS). A Mössbauer effect in hercynite obtained by the arc-melting method indicated the cations distribution in the spinel structure among the tetrahedral and octahedral interstices.

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Firing Techniques of the Impasti from the Protohistoric Site of Concordia Sagittaria (Venice)

Bertelle

Calogero

Leotta

et al. 2001

Journal of Archaeological Science

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Mössbauer Spectral Studies of Natural Substituted Spinels

Cited by 11 publications

References 17 publications

Dialysis and photo-electrodialysis processes using new synthesized polymeric membranes for the selective removal of bivalent cations

Dialysis and photo-electrodialysis processes using new synthesized polymeric membranes for the selective removal of bivalent cations

Crystal structure and Mössbauer study of FeAl₂O₄

Firing Techniques of the Impasti from the Protohistoric Site of Concordia Sagittaria (Venice)

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Mössbauer Spectral Studies of Natural Substituted Spinels

Cited by 11 publications

References 17 publications

Dialysis and photo-electrodialysis processes using new synthesized polymeric membranes for the selective removal of bivalent cations

Dialysis and photo-electrodialysis processes using new synthesized polymeric membranes for the selective removal of bivalent cations

Crystal structure and Mössbauer study of FeAl2O4

Firing Techniques of the Impasti from the Protohistoric Site of Concordia Sagittaria (Venice)

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Crystal structure and Mössbauer study of FeAl₂O₄