Scopus
YÖKSİS Eşleşti
Photocatalytic hydrogen evolution performance of metal ferrites /polypyrrole nanocomposites
International Journal of Hydrogen Energy · Eylül 2022
YÖKSİS Kayıtları
Photocatalytic hydrogen evolution performance of metal ferrites /polypyrrole nanocomposites
International Journal of Hydrogen Energy · 2022 SCI-Expanded
PROFESÖR İMREN HATAY PATIR →
Photocatalytic hydrogen evolution performance of metal ferrites /polypyrrole nanocomposites
International Journal of Hydrogen Energy · 2022 SCI-Expanded
DOKTOR ÖĞRETİM ÜYESİ GİZEM YILDIZ →
Photocatalytic hydrogen evolution performance of metal ferrites /polypyrrole nanocomposites
International Journal of Hydrogen Energy · 2022 SCI-Expanded
DOÇENT EMRE ASLAN →
Makale Bilgileri
DergiInternational Journal of Hydrogen Energy
Yayın TarihiEylül 2022
Cilt / Sayfa47 · 32940-32954
Scopus ID2-s2.0-85137380728
Özet
The combination of inorganic (e.g., ferrite nanoparticles) and organic (e.g., conducting polymers) materials in the fabrication of heterojunctions or composites is an attractive scheme in the field of photocatalysis. We took the advantage of this phenomenon by fabricating MFerrite (M = Co, Ni, and Zn) @polypyrrole (MFerrite@Ppy) nanocomposites with a varying weight percentage of Ppy for the hydrogen production through photocatalytic water splitting under visible light irradiation. The structural, spectral, morphological, compositional, and optical features of the as-prepared nanocomposites were analyzed in full depth. The average crystallite sizes were estimated to be 30–40 nm from the XRD patterns which were further validated by TEM images from which a core-shell structure of the composites can be inferred. Likewise, the SEM images revealed spherical Ppy particles with a diameter in the range of 100–300 nm. From a photocatalytic viewpoint, CoFerrite@30Ppy is endowed with some peculiar characteristics including but not limited to strong light-harvesting ability (ranging between 300 and 650 nm), narrow optical band gap (as low as 1.6 eV), and higher photoluminescence (PL) lifetime (6.41 ns) which justify why it stands out among all composites in terms of photocatalysis. Under 8 h illumination of simulated visible light and using triethanolamine (TEOA) as a hole scavenger and Eosin-Y (EY) as a dye sensitizer, the photocatalytic hydrogen evolution (HER) amount for CoFerrite@30Ppy was found to be 10.44 mmol g−1, far greater than any other composite catalysts in this study. From the PL spectra, it can be pointed out that sensitization of CoFerrite with 30 wt % Ppy conduces to simultaneous deceleration of the electron-hole recombination process and acceleration of the transference of excitons within the system.
Yazarlar (12)
1
Sanaz Chamani
2
Ebrahim Sadeghi
3
Naeimeh Sadat Peighambardoust
4
Fatmanur Doganay
5
Gizem Yanalak
6
Zafer Eroğlu
ORCID: 0000-0002-0601-2526
7
Emre Aslan
8
Elnaz Asghari
9
Önder Metin
ORCID: 0000-0003-1622-4992
10
Imren Hatay Patir
ORCID: 0000-0003-2937-6557
11
Umut Aydemir
12
Maasoumeh Khatamian
Anahtar Kelimeler
Ferrites
Hydrogen evolution
Nanocomposite
Photocatalysis
Polypyrrole
Kurumlar
Atatürk Üniversitesi
Erzurum Turkey
Koç Üniversitesi
Istanbul Turkey
Selçuk Üniversitesi
Selçuklu Turkey
University of Tabriz
Tabriz Iran
Metrikler
15
Atıf
12
Yazar
5
Anahtar Kelime