Journal
CHEMOSPHERE
Volume 117, Issue -, Pages 638-643Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2014.09.055
Keywords
Fenton-like; Fe-based metallic glass; Rhodamine B; Degradation
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Funding
- Fundamental Research Funds for the Central Universities of China [2242014R20012]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1302045B]
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An efficient heterogeneous catalyst, Fe-based metallic glass (Fe-Si-B amorphous ribbon), was successfully prepared for Fenton-like degradation of rhodamine B (RhB) by a melt-spinning method. The catalyst was characterized using XRD and SEM. The effects of various reaction parameters such as H2O2 dosage, temperature, initial pH value, Fe-Si-B dosage and initial RhB concentration on the degradation of RhB were studied. Almost complete degradation of RhB (20 mg L-1) was achieved within only 10 min by 0.5 g L-1 Fe-Si-B catalyst and 1.6 mM H2O2 at pH 3.0 at 295 K. Kinetic analyses showed that the degradation process could be described by a pseudo-first-order kinetic model. The catalytic stability was also investigated and it was found that the Fe-Si-B catalyst exhibited good structural stability and no loss of performance even after three cycles. It was concluded that the Fe-Si-B amorphous ribbon was a potential heterogeneous Fenton-like catalyst for industrial wastewater treatment. (C) 2014 Elsevier Ltd. All rights
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