Synthesis of Novel Fe-CNs-P/S Carbon Materials for Sustainable Water Treatment: Activation of Persulfate for Efficient Tetracycline Degradation

Huali Zhang, Kanghui Zhang, Qin Liu, Tongshan Shi (), Jiaheng Cui and Jinxiu Li
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Huali Zhang: School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Kanghui Zhang: School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Qin Liu: School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Tongshan Shi: State Key Laboratory of Efficient Utilization of Medium and Low Grade Phosphate Rock and Its Associated Resources, Guiyang 550014, China
Jiaheng Cui: School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Jinxiu Li: School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China

Sustainability, 2024, vol. 16, issue 20, 1-20

Abstract: This study presents a novel Fe-CNs-P/S carbon composite material, synthesized by doping elements P and S into NH 2 -MIL-101 (Fe) using the carbonization method. The material’s application in sustainable water treatment was evaluated, focusing on its effectiveness in activating persulfate for pollutant degradation. The research thoroughly investigates the synthesis process, structural characteristics, and performance in degrading pollutants. The results indicate that Fe-CNs-P/S-5 with 50% P and S co-doping is higher than that of other samples, where the degradation rate of TC in 30 min is as high as 98.11% under the optimum conditions, that is temperature at 25 °C, 0.05 g/L of catalyst concentration, and 0.2 g/L of PMS concentration. The composite material demonstrates robust versatility and stability, maintaining high degradation efficiency across multiple organic pollutants, with no significant reduction in catalytic performance after four cycles. Furthermore, the free radical quenching experiments display that the singlet oxygen 1 O 2 is the main active species. It is demonstrated that the doping of P and S play a role in the enhancement of PMS activation over the Fe-CNs-P/S catalyst. This material demonstrates remarkable efficacy in treating a range of organic contaminants and exhibits excellent reusability, presenting a promising approach for enhancing sustainability in water treatment applications.

Keywords: sustainable water treatment; NH 2 -MIL-101 (Fe); carbon materials; doping; tetracycline (TC); persulfate activation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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