MOF-derived CoFe2O4/FeS2 Z-type heterojunctions for efficient degradation of tetracycline by visible-light activation of persulfate

Yixing Hao, Hui Yang, Shanping Jiang, Sridhar Komarneni, Jianfeng Ma

Research output: Contribution to journalArticlepeer-review

Abstract

CoFe2O4 was successfully prepared by calcination of bimetallic MOF precursors, and CoFe2O4/FeS2 nanocomposites were prepared by compounding it with FeS2. The catalysts were characterized for their photocatalytic ability using tetracycline (TC) as a target contaminant. The high adsorption due to the wide specific surface area of MOF-derived CoFe2O4/FeS2 led to its excellent photocatalytic performance. Furthermore, the optimum dosages of catalyst and persulfate in the M-CFO/FeS2/Na2S2O8/Vis system were determined. The variation of catalytic performance as a function of pH was also investigated. The degradation mechanism studies assisted by ESR technique and heterojunction structure analysis confirmed the Z-type heterojunction formation and generation of sulfate as well as superoxide free radicals, which played the main species responsible of TC degradation.

Original languageEnglish (US)
Pages (from-to)25365-25378
Number of pages14
JournalCeramics International
Volume50
Issue number14
DOIs
StateAccepted/In press - 2024

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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