Degradation of sulfamethazine antibiotics using Fe3O4–Mn3O4 nanocomposite as a Fenton‐like catalyst. Issue 4 (28th September 2016)

• Record Type: Journal Article
• Authors: Wan, Zhong; Wang, Jianlong
• Is Part Of: Journal of chemical technology & biotechnology. Volume 92:Issue 4(2017)
• Page Start: 874
• Page End: 883
• Publication Date: 2016-09-28
• Subjects: Fenton‐like process -- Fe3O4–Mn3O4 composites -- catalyst -- sulfamethazine -- antibiotics -- degradation; Biotechnology -- Periodicals; Chemistry, Technical -- Periodicals; Chemical engineering -- Periodicals; Industries -- Environmental aspects -- Periodicals; 660
• DOI: 10.1002/jctb.5072
• Languages: English
• ISSNs: 0268-2575

Abstract

Abstract: BACKGROUND: The presence of sulfonamide antibiotics in aquatic environments has received increasing attention. In this study, the nanocomposite Fe3 O4 –Mn3 O4 was synthesized, characterized and used as a catalyst for the degradation of sulfamethazine (SMT) in a heterogeneous Fenton‐like process. RESULTS: The composites were characterized by X‐ray diffraction (XRD), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), BET specific surface area, vibrating sample spectrometry (VSM), Raman and Fourier transform infrared (FTIR) spectroscopy before and after use. The catalytic activity was evaluated under different conditions, including pH value, H2 O2 dosage, catalyst dosage, temperature and initial concentration of SMT. The removal efficiency of SMT was more than 99% in 50 min at pH=3, T = 45 °C, H2 O2 =6 mmol L −1, Fe3 O4 –Mn3 O4 dosage = 0.5 g L −1, SMT=20 mg L −1 . CONCLUSIONS: Fe3 O4 –Mn3 O4 composite was an efficient catalyst for degradation of SMT in a Fenton‐like process. © 2016 Society of Chemical Industry