Scopus
YÖKSİS Eşleşti
The effect of Ni and Co co-catalysts on the catalytic activity of mesoporous graphitic carbon nitride/black phosphorus/molybdenum disulfide heterojunctions in solar-driven hydrogen evolution
Journal of Environmental Chemical Engineering · Ekim 2023
YÖKSİS Kayıtları
The effect of Ni and Co co-catalysts on the catalytic activity of mesoporous graphitic carbon nitride/black phosphorus/molybdenum disulfide heterojunctions in solar-driven hydrogen evolution
Journal of Environmental Chemical Engineering · 2023 SCI-Expanded
PROFESÖR İMREN HATAY PATIR →
The effect of Ni and Co co-catalysts on the catalytic activity of mesoporous graphitic carbon nitride/black phosphorus/molybdenum disulfide heterojunctions in solar-driven hydrogen evolution
Elsevier BV · 2023 SCI-Expanded
PROFESÖR MUSTAFA ERSÖZ →
The effect of Ni and Co co-catalysts on the catalytic activity of mesoporous graphitic carbon nitride/black phosphorus/molybdenum disulfide heterojunctions in solar-driven hydrogen evolution
Journal of Environmental Chemical Engineering · 2023 SCI-Expanded
DOKTOR ÖĞRETİM ÜYESİ GİZEM YILDIZ →
Makale Bilgileri
DergiJournal of Environmental Chemical Engineering
Yayın TarihiEkim 2023
Cilt / Sayfa11
Scopus ID2-s2.0-85173139532
Özet
In this work, a ternary heterojunction photocatalyst composed of mesoporous graphitic carbon nitride, black phosphorus, and molybdenum disulfide (m-CN/BP/MoS2) was firstly fabricated for the visible-light-driven hydrogen evolution reaction (HER) via water splitting. The photocatalytic activity of m-CN/BP/MoS2 photocatalyst was further improved by incorporating Ni and Co co-catalysts, denoted as m-CN/BP/MoS2-Y (Y: Ni, Co). The final quaternary nanocomposites were experimentally demonstrated in the form of mixed heterojunctions (type-I, type-II, and Schottky junctions) to manipulate the photogenerated carriers with the aim of reducing their recombination rate and increasing the light-harvesting ability of the pristine components. To find the best combination of different semiconductors in the heterojunction to ensure the highest photocatalytic HER activity, the loading ratio of each component was optimized one-by-one by considering the rate of HER under the same conditions. The photocatalytic HER activity of m-CN/BP/MoS2-Ni (5 wt%) and m-CN/BP/MoS2-Co (0.5 wt%) photocatalysts reached up to 21.668 mmol g−1 and 29.179 mmol g−1 for 8 h in the presence of triethanolamine electron donor under visible light irradiation, which were about 11 and 15 times higher than that of m-CN/BP binary heterojunctions, 4 and 5 times higher than that of m-CN/BP/MoS2 ternary heterojunctions, respectively. Ni or Co co-catalysts enhanced charge separation and thus increasing the rate of H2 evolution owing to their suitable D-band levels. This present study supplies a strategy to design efficient photocatalysts for solar fuel production without using non-noble metal cocatalysts.
Yazarlar (7)
1
Gizem Yanalak
2
Begümhan Karapınar Koç
3
Seda Yılmaz
4
Muhammad Israr
5
Mustafa Ersöz
6
Önder Metin
ORCID: 0000-0003-1622-4992
7
Imren Hatay Patir
ORCID: 0000-0003-2937-6557
Anahtar Kelimeler
Black phosphorus
Carbon nitride
Heterojunction photocatalyst
Hydrogen evolution reaction
MoS 2
Kurumlar
Koç Üniversitesi
Istanbul Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Tsinghua University
Beijing China
Metrikler
2
Atıf
7
Yazar
5
Anahtar Kelime