Pregled bibliografske jedinice broj: 1202985
Effects of Pt and Ru doping on the magnetic, optical, photoelectrochemical and photocatalytic properties of electrospun hematite (α-Fe2O3) fibres
Effects of Pt and Ru doping on the magnetic, optical, photoelectrochemical and photocatalytic properties of electrospun hematite (α-Fe2O3) fibres // Journal of materials research, 38 (2023), 974-989 doi:10.1557/s43578-022-00645-8 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1202985 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effects of Pt and Ru doping on the magnetic,
optical, photoelectrochemical and photocatalytic
properties of electrospun hematite (α-Fe2O3)
fibres
Autori
Petrović, Željka ; Ristić, Mira ; Kraljić Roković, Marijana ; Zadro, Krešo ; Kuzmann, Ernő ; Homonnay, Zoltán ; Musić, Svetozar ; Krehula, Stjepko
Izvornik
Journal of materials research (0884-2914) 38
(2023);
974-989
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
doping ; hematite ; magnetic properties ; Mössbauer effect ; photocatalysis ; photoelectrochemistry
Sažetak
The development of an efficient and stable photo(electrochemical) catalyst is a very challenging task because its catalytic activity depends directly on the electronic structure and the charge carrier transfer through the catalyst/electrolyte interface. Therefore, the main objective of this study was to optimise the semiconducting properties of the electrospun α- Fe2O3 fibres by Ru3+ and Pt4+ doping, to determine the effect of these cations on magnetic and optical properties, as well as on the photocatalytic and photoelectrochemical activity of α-Fe2O3 fibres. Increased temperature of the Morin transition, enhanced remanent magnetization, lower coercivity and narrower optical band gap in hematite fibres by Pt4+ and Ru3+ doping was observed. Electrochemical measurements revealed n- type conductivity of all fibres, while increased donor density and anodic shift of the flatband potential were registered for the doped fibres. The photoactivity of fibres, which was tested for the degradation of rhodamine B, depended on the dopant used.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija, Kemijsko inženjerstvo
POVEZANOST RADA
Projekti:
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HRZZ-IP-2016-06-8254 - Nastajanje i svojstva 1D α-Fe2O3 nanostruktura dopiranih odabranim metalnim ionima (1D-DopedFeOX) (Krehula, Stjepko; Ristić, Mira, HRZZ ) ( CroRIS)
HRZZ-IP-2018-01-1982 - Nano-katalizatori aktivirani Sunčevim zračenjem u tehnologijama zaštite okoliša (NaSCEnT) (Kušić, Hrvoje, HRZZ - 2018-01) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb,
Hrvatska akademija znanosti i umjetnosti,
Prirodoslovno-matematički fakultet, Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
Profili:
Krešo Zadro
(autor)
Marijana Kraljić Roković
(autor)
Mira Ristić
(autor)
Stjepko Krehula
(autor)
Svetozar Musić
(autor)
Željka Petrović
(autor)
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