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High-Efficient Elimination of Spiramycin by Fe 3 O 4 /ZSM-5/Sch via Heterogeneous Photo-Fenton Oxidation at Neutral pH

Author

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  • Jiali Yi

    (College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China)

  • Junjun Xu

    (College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China)

  • Jiatong Liu

    (College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China)

  • Yue Zheng

    (School of Chemistry and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China)

  • Qiong Wang

    (College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, China)

Abstract

Spiramycin (SPM), a widely employed antibiotic in both clinical therapy and the livestock industry, poses significant challenges in terms of safe and efficacious management. A heterogeneous photo-Fenton system, devised using Schwertmannite (Sch), can effectively degrade contaminants. However, it is accompanied by a relatively low conversion efficiency of ≡Fe 3+ /≡Fe 2+ and a significant iron loss. In this study, a catalyst featuring Fe 3 O 4 and ZSM-5 molecular sieve-modified Sch (Fe 3 O 4 /ZSM-5/Sch) was devised to enhance the catalytic activity and stability. The findings revealed that Fe 3 O 4 /ZSM-5/Sch exhibited exceptional catalytic activity, with the reaction first-order kinetic exceeding that of pure Sch. The active species including ·OH, h + , e − , ·O 2 − and SO 4 · − were identified in the UV/Fe 3 O 4 /ZSM-5/Sch-H 2 O 2 system. The enhanced catalytic activity of Fe 3 O 4 /ZSM-5/Sch could be ascribed to the effective conversion of ≡Fe 3+ /≡Fe 2+ . The photogenerated electrons within Fe 3 O 4 were transported to Sch via ZSM-5, which effectually reduced ≡Fe 3+ /≡Fe 2 . Moreover, Fe 3 O 4 /ZSM-5/Sch demonstrated outstanding stability; even after six cycles, the degradation efficiency of SPM remained above 86.50%, and the leaching quantity of Fe remained below 0.24 mg/L. This research not only develops an excellent catalyst for the safe treatment of SPM but also proffers innovative perspectives for the future design of efficient iron-based catalysts.

Suggested Citation

  • Jiali Yi & Junjun Xu & Jiatong Liu & Yue Zheng & Qiong Wang, 2023. "High-Efficient Elimination of Spiramycin by Fe 3 O 4 /ZSM-5/Sch via Heterogeneous Photo-Fenton Oxidation at Neutral pH," Sustainability, MDPI, vol. 15(16), pages 1-16, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:16:p:12343-:d:1216756
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    References listed on IDEAS

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    1. Claudia Victoria Montoya-Bautista & Edwin Avella & Rosa-María Ramírez-Zamora & Rafael Schouwenaars, 2019. "Metallurgical Wastes Employed as Catalysts and Photocatalysts for Water Treatment: A Review," Sustainability, MDPI, vol. 11(9), pages 1-16, April.
    2. Muhammad Imran Kanjal & Majid Muneer & Muhammad Asghar Jamal & Tanveer Hussain Bokhari & Abdul Wahid & Shafqat Ullah & Abdeltif Amrane & Amina Hadadi & Hichem Tahraoui & Lotfi Mouni, 2023. "A Study of Treatment of Reactive Red 45 Dye by Advanced Oxidation Processes and Toxicity Evaluation Using Bioassays," Sustainability, MDPI, vol. 15(9), pages 1-15, April.
    3. Anna Xexaki & Dimitrios K. Papadopoulos & Maria V. Alvanou & Ioannis A. Giantsis & Konstantinos V. Papageorgiou & Georgios A. Delis & Vangelis Economou & Spyridon K. Kritas & Evangelia N. Sossidou & E, 2023. "Prevalence of Antibiotic Resistant E. coli Strains Isolated from Farmed Broilers and Hens in Greece, Based on Phenotypic and Molecular Analyses," Sustainability, MDPI, vol. 15(12), pages 1-10, June.
    4. Vasiliki Boti & Vasiliki Toli & Christina Efthymiou & Triantafyllos Albanis, 2023. "Screening of Commonly Used Antibiotics in Fresh and Saltwater Samples Impacted by Aquacultures: Analytical Methodology, Occurrence and Environmental Risk Assessment," Sustainability, MDPI, vol. 15(12), pages 1-19, June.
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