Nickel nanoparticle-decorated twinned crystal CdxZn1−xS for enhanced photocatalytic hydrogen production

Hamid M. A., Zengin Y., KAYA B., ŞAFAK BOROĞLU M., Boz I.

International Journal of Hydrogen Energy, cilt.75, ss.64-73, 2024 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.ijhydene.2023.12.206
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.64-73
  • Anahtar Kelimeler: Cd0.5Zn0.5S, Ni–Cd0.5Zn0.5S, Surface plasmon resonance, Sustainable energy, Visible light photocatalysis
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

In photocatalysis, maximizing light absorption and utilizing light-stimulated electrons is of paramount importance. In this study, Ni-decorated CdxZn1−xS twinned crystals were synthesized via solvothermal method with Ni loadings ranging from 0.5 to 5 wt%. The Ni nanoparticles introduced the Surface Plasmon Resonance (SPR) effect, broadening photon absorption and extending the photo-response into the visible light range. Notably, 1 wt % Ni-decorated Cd0.5Zn0.5S exhibited remarkable H2 evolution rate of 1497 μmol(h.gcat)−1. This enhancement is attributed to the SPR effect, which enhances light absorption and photogenerated electron generation, as well as efficient electron transfer facilitated by Ni's lower Fermi level. These findings emphasize the crucial role of optimal Ni loading and the SPR effect in enhancing photocatalytic efficiency.