期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 18, 期 10, 页码 6942-6948出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2018.15800
关键词
CoFe2O4; Diclofenac; Persulfates; Sulfate Radicals
类别
资金
- National Natural Science Foundation of China [51508254, 41771341]
- Nature Science Foundation of Gansu Province of China [1506RJZA216]
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure [SKL201509SIC]
- Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials [KFK1502]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences
In this study, magnetic CoFe2O4 nanoparticles were synthesized by hydrothermal method by using ferric nitrate and cobalt nitrate as raw materials. Subsequently, physicochemical properties of the resulting CoFe2O4 nanoparticles were systematically studied by scanning electron microscope, X-ray diffraction, N-2 adsorption/desorption, Fourier transformation infrared spectroscopy and Vibration sample magnetometer measurement. Results indicated that CoFe2O4 nanoparticles with cubic spinel structure possessed an average diameter of 6.9 nm, specific surface area of 103.48 m(2) . g(-1), saturation magnetization of 54.65 A . m(2) (emu . g(-1)) and coercivity of 1.76x10(4) A . m(-1). Furthermore, scavenging experiments revealed that sulfate radicals ((SO4-)-S-center dot) was the main active species derived from persulfates, in which 72.3% of diclofenac could be degraded within 30 min treatment. This study provides a promising strategy to synthesize versatile catalyst which would be potentially applied in pharmaceutical wastewater purification.
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