Fe-Functionalized Activated Carbon-AgI Photocatalyst: A Sustainable Strategy for Efficient Wastewater Remediation

Singh A., Sharma S., Sonu S., Raizada P., Ahamad T., KAYA S., ...Daha Fazla

Catalysis Letters, cilt.156, sa.11, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 156 Sayı: 11
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1007/s10562-026-05553-8
  • Dergi Adı: Catalysis Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
  • Anahtar Kelimeler: AgI, Fe-AC, Heterojunction Formation, Photocatalyst, Wastewater Treatment
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

For enhancement of visible-light-driven degradation of tetracycline (TCL), this work reports synthesis of a Fe-assisted Fe-AC/AgI nanocomposite which is prepared using a simple co-precipitation approach. Herein, XRD and FESEM analyses confirmed the formation of a well-crystallized material which comprises a stable structural framework along with uniform morphology composed of well-interconnected particles. Whereas, optical and electrochemical characterizations further demonstrate that AgI possesses a suitable, aligned band structure for visible-light activation, and revealing an optical band gap of 2.53 eV. The Fe2+ ions introduced effective electron-trapping sites, which helped in the suppression of rapid e−/h+ recombination and promoted the generation of reactive oxygen species, particularly ⋅OH and ⋅O₂− radicals. These radicals play a decisive role in degradation of TCL. Due to which, the Fe-AC/AgI photocatalyst achieved a notable degradation efficiency of about 89.77% under visible-light irradiation and it also retained its catalytic activity over multiple reuse cycles. Overall, these findings determine that Fe-AC/AgI system is a promising and practical photocatalyst for the wastewater treatment, which offers an efficient strategy for the ultimate removal of pharmaceutical contaminants.