دورية أكاديمية
Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC
| العنوان: | Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC |
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| المؤلفون: | Kun Guan, Peijiang Zhou, Junye Zhang, Longlong Zhu |
| المصدر: | Materials Research Express, Vol 7, Iss 1, p 016529 (2020) |
| بيانات النشر: | IOP Publishing, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Chemical technology |
| مصطلحات موضوعية: | catalyst, CuFe2O4@RSDBC, character, persulfate activation, degradation, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185 |
| الوصف: | In this study, a novel series of rectorite/sludge derived biochar (RSDBC) supporting CuFe _2 O _4 (CuFe _2 O _4 @RSDBC) composites were prepared as an effective catalyst to active persulfate (PS) for the removal of Acid Orange 7 (AO7) in water. The character of catalyst was analyzed by scanning electron microscope (SEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD). Various influencing factors including initial pH, PS concentration, catalyst dosage, initial dye concentration and reaction temperature were investigated. The optimal reaction conditions were found to be: PS concentration 2 mM; catalyst dosage 0.6 g l ^−1 ; initial pH value 7.0 and 25 °C of reaction temperature. Further radical quenching tests were performed by using ethanol, tert-butanol (TBA) and benzoquinone (BQ), which confirmed that sulfate radicals ( ${{{\rm{SO}}}_{4}}^{\cdot -}$ ) and hydroxyl radicals (HO•−) were the reactive species in the degradation process. The Gas chromatography-mass spectrometry (GC-MS) analysis was employed to determine the intermediate products and a plausible degradation pathway is proposed. In addition, the CuFe _2 O _4 @RSDBC sample exhibited high color removal ability (95%) and stable performance after three successive runs. At last, the catalyst proved a good removal effect for actual dye wastewater. These results indicate that CuFe _2 O _4 @RSDBC hybrids could be as effective catalysts for PS activation on dye pollutants elimination. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2053-1591 |
| Relation: | https://doaj.org/toc/2053-1591 |
| DOI: | 10.1088/2053-1591/ab6253 |
| URL الوصول: | https://doaj.org/article/dfb9ff9637304ddf9cda17dfce90b5cd |
| رقم الأكسشن: | edsdoj.fb9ff9637304ddf9cda17dfce90b5cd |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20531591 |
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| DOI: | 10.1088/2053-1591/ab6253 |