Pregled bibliografske jedinice broj: 1111514
Hydrolysis of Fe(III) in the presence of mixed anions and promoters
Hydrolysis of Fe(III) in the presence of mixed anions and promoters // Journal of radioanalytical and nuclear chemistry, 324 (2020), 3; 1293-1302 doi:10.1007/s10967-020-07158-w (međunarodna recenzija, članak, znanstveni)
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Naslov
Hydrolysis of Fe(III) in the presence of mixed
anions and promoters
Autori
Ristić, Mira ; Kuzmann, Erno ; Homonnay, Zoltan ; Mitar, Ivana ; Musić, Svetozar
Izvornik
Journal of radioanalytical and nuclear chemistry (0236-5731) 324
(2020), 3;
1293-1302
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
iron oxides ; forced hydrolysis ; sulphates ; Mossbauer spectroscopy
Sažetak
Forced hydrolyses in the precipitation systems (a) Fe(NO3)(3)/Fe-2(SO4)(3) and FeCl3/Fe-2(SO4) (3) and (b) FeCl3/N-guanylurea sulphate were investigated using Fe-57 Mossbauer and FT-IR spectroscopies and scanning electron microscopy (FE SEM). Forced hydrolyses of Fe(NO3)(3)/Fe- 2(SO4)(3) solutions at 90 degrees C yielded superparamagnetic goethite nanorods, whereas in the case of FeCl3/Fe-2(SO4)(3) solutions the clusters of akaganeite nanoneedles were formed. With a prolonged heating time at 90 degrees C the conversion of these akaganeite nanoneedles into goethite nanorods was observed. Forced hydrolysis in the system FeCl3/N- guanylurea sulphate at 160 degrees C generated only hematite and goethite phases and their fractions depended on the concentration of FeCl3 and the amount of N-guanylurea sulphate in the solution. Different shapes of iron(III) oxyhydroxides and hematite in dependence on the experimental conditions were monitored with FE SEM. Specifically adsorbed sulphates on these particles, as shown by FT-IR spectroscopy, served as directing agents in the particle/crystal growth.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
HRZZ-IP-2016-06-8254 - Nastajanje i svojstva 1D α-Fe2O3 nanostruktura dopiranih odabranim metalnim ionima (1D-DopedFeOX) (Krehula, Stjepko; Ristić, Mira, HRZZ ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb,
Hrvatska akademija znanosti i umjetnosti,
Prirodoslovno-matematički fakultet, Split
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
