Dual transfer channels in FeCN/ZnSe/V2O5 dual Z-Scheme ternary heterojunctions facilitating efficient degradation of Congo red dye

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Sudhaik A., Kumar R., Raizada P., Ahamad T., Nguyen N. T., KAYA S., ...Daha Fazla

Journal of Sol-Gel Science and Technology, cilt.117, sa.2, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 117 Sayı: 2
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1007/s10971-025-07029-4
  • Dergi Adı: Journal of Sol-Gel Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex
  • Anahtar Kelimeler: CR degradation, Dual Z-scheme, FeCN/ZnSe/V2O5, High redox ability, Photocatalysis
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

The current study investigates the fabrication of a dual Z-scheme photocatalytic system, i.e., FeCN/ZnSe/V2O5, to effectively remove Congo red (CR) dye. Recently, photocatalysis has gained popularity as a practical wastewater treatment approach due to using solar energy (a renewable energy source). All photocatalysts were synthesized using a simple and cost-effective method, such as thermal polycondensation and the hydrothermal method, to fabricate FeCN and ZnSe, respectively, while the calcination technique was used to construct bare V2O5. A physical mixing approach was used to form the binary and ternary heterojunctions of FeCN/ZnSe and FeCN/ZnSe/V2O5 heterojunction photocatalyst. By prolonging light absorption ability, lowering the recombination rate, and boosting charge separation efficiency, a dual Z-scheme route upgraded the photocatalytic performance of the ternary heterojunction photocatalyst. PL, EIS, and TPR investigations confirmed the lower recombination and higher charge transference in FeCN/ZnSe/V2O5 ternary heterojunction. The synthesized FeCN/ZnSe/V2O5 ternary heterojunction performed better photocatalytic efficiency towards CR degradation than other photocatalysts, 87% during 60 min of light irradiation. The ESR studies with scavenging investigations also established the crucial part of •O2⁻ and •OH species during photodegradation. Also, recyclability experiments were performed to explore the stability of the synthesized ternary heterojunction photocatalysts, and ~78% removal efficiency was attained after 5 catalytic cycles, indicating its good reusability with stability.