کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8852166 | 1618774 | 2018 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficient degradation of 2,4-dichlorophenol in aqueous solution by peroxymonosulfate activated with magnetic spinel FeCo2O4 nanoparticles
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Magnetic spinel FeCo2O4 nanoparticles (NPs) were synthesized and proposed as a catalyst of peroxymonosulfate (PMS) for the degradation of 2,4-dichlorophenol (2,4-DCP). The catalyst was characterized by XRD, TEM, XPS, nitrogen adsorption-desorption isotherms, and magnetization curve. In addition, the effects of parameters, such as initial pH, PMS dosage, FeCo2O4 addition, and initial concentration of 2,4-DCP were studied. The results showed that FeCo2O4 NPs exhibit good properties for the degradation and mineralization of 2,4-DCP, achieving 95.8% and 44.7% removal of 2,4-DCP and TOC, respectively, within 90â¯min under reaction conditions of 4â¯mM PMS, 0.06â¯gâ¯Lâ1 FeCo2O4, 100â¯mgâ¯Lâ1 2,4-DCP, pHâ¯=â¯7.0, and Tâ¯=â¯30â¯Â°C. Furthermore, SO4â and HO were main radical species in the reaction system was explored. The 2,4-DCP degradation efficiency could reach 91.8% even after FeCo2O4 NPs were used for the fifth run. Moreover, the degradation efficiencies of metronidazole (MNZ), methylene blue (MB), and rhodamine B (RhB) could reach 74.8%, 86.7%, and 96.1% under the same reaction conditions, respectively. Results revealed that the FeCo2O4/PMS system shows potential for degrading contaminants in the environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 197, April 2018, Pages 670-679
Journal: Chemosphere - Volume 197, April 2018, Pages 670-679
نویسندگان
Rui Zhou, Jian Zhao, Ningfei Shen, Taigang Ma, Yu Su, Hejun Ren,