Scopus
YÖKSİS Eşleşti
Solar-light-driven photocatalytic hydrogen evolution activity of gCN/WS<inf>2</inf> heterojunctions incorporated with the first-row transition metals
Journal of Alloys and Compounds · Temmuz 2023
YÖKSİS Kayıtları
Solar-light-driven photocatalytic hydrogen evolution activity of gCN/WS2 heterojunctions incorporated with the first-row transition metals
Journal of Alloys and Compounds · 2023 SCI-Expanded
DOÇENT EMRE ASLAN →
Solar-light-driven photocatalytic hydrogen evolution activity of gCN/WS2 heterojunctions incorporated with the first-row transition metals
Journal of Alloys and Compounds · 2023 SCI-Expanded
PROFESÖR İMREN HATAY PATIR →
Makale Bilgileri
DergiJournal of Alloys and Compounds
Yayın TarihiTemmuz 2023
Cilt / Sayfa950
Scopus ID2-s2.0-85151820025
Özet
The design of semiconductor-based heterojunctions is an effective strategy to build highly active photocatalyst systems. In this study, tungsten disulfide (WS2) modified graphitic carbon nitride (gCN) heterojunction (gCN/WS2) is incorporated with Co and Ni (gCN/WS2-Co and gCN/WS2-Ni) to enhance the photocatalytic hydrogen evolution reaction (HER) activity of gCN/WS2 via performing a chemical reduction method and characterized by advanced analytical techniques. The photocatalytic HER activities of gCN, gCN/WS2, gCN/WS2-Ni and gCN/WS2-Co were measured as 0.126, 0.221, 0.237 and 0.249 mmol g−1h−1, respectively, under the visible light irradiation. The improvement of photocatalytic activity and stability of gCN/WS2-Ni and gCN/WS2-Co nanocomposites could be attributed to the 2D/2D heterojunction structure, extended light harvesting ability, increased electron-hole lifetime and decreased recombination rate of the charge carriers. Moreover, mechanistic studies revealed that a S-scheme heterojunction is attributed to the enhanced photocatalytic HER by the gCN/WS2-Ni and gCN/WS2-Co photocatalysts, which provides promoted efficiency by photocarrier transfer and separation.
Yazarlar (6)
1
Eminegül Genc Acar
2
Seda Yılmaz
3
Zafer Eroğlu
ORCID: 0000-0002-0601-2526
4
Emre Aslan
5
Önder Metin
ORCID: 0000-0003-1622-4992
6
Imren Hatay Patir
ORCID: 0000-0003-2937-6557
Anahtar Kelimeler
Graphitic carbon nitride
Hydrogen evolution reaction
Metal doping effect
Solar hydrogen
Tungsten disulfide
Water splitting
Kurumlar
Koç Üniversitesi
Istanbul Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
9
Atıf
6
Yazar
6
Anahtar Kelime