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. 2015, 46(17): 1-0.
Abstract (
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The application of Fenton reaction is restricted to a narrow pH range (2~3.5), which has long been a technological bottleneck. Therefore, the development of a pH-tolerant Fenton-like catalyst is an active and challenging research front in the field of environmental catalysis. In this work, we evaluated the pH-tolerant performance of the novel Fenton-like catalytic fibers (QuFe@ACFs) based on activated carbon fibers (ACFs) coupled with 8-hydroxyquinoline ferric (QuFe) by a simple impregnation method. The UV-vis spectroscopy measurements showed that the reactive brilliant red M-3BE (RR M-3BE) was completely degraded in 32 min. Probe compound O-phenylenediamine combined with electron paramagnetic resonance (EPR) spectroscopy and UV-Vis spectroscopy were employed to demonstrate the catalytic stability of QuFe@ACFs, and the experimental results showed that QuFe@ACFs exhibited excellent catalytic ability and recycle utilization performance across a wide pH range from 3 to 9, brought remarkable pH-tolerant performance. To sum up, the QuFe@ACFs prepared by an extremely simple impregnation method, breaks the technological bottleneck for Fenton treatment, providing new ideas for preparing novel pH-tolerant Fenton-like catalysts with excellent catalytic activity.