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Degradation of Rhodamine B by FeMnCoNi-O activated potassium persulfate
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Bang-li XU, Hai-xian YAN, Shi-ya WENG, Shi-qi WANG, Feng FANG*
China Environmental Science | 2025, 45(2) : 759 - 767
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China Environmental Science | 2025, 45(2): 759-767
• Water Pollution Control •
Degradation of Rhodamine B by FeMnCoNi-O activated potassium persulfate
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Bang-li XU, Hai-xian YAN, Shi-ya WENG, Shi-qi WANG, Feng FANG*
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  • School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
Published: 2025-02-20
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FeMnCoNi-O nanoparticles (NPs) with outstanding structural stability and catalytic performance were synthesized by coprecipitation and consequent calcination method. The FeMnCoNi-O NPs were carefully characterized by X-Ray diffraction (XRD), transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analyzer (TG) and X-ray photoelectron spectroscopy (XPS) techniques. Furthermore, the obtained catalyst was applied to activate potassium persulfate (PMS) and degrade Rhodamine B (RhB). The effects of reaction conditions such as the concentration of the RhB, PMS and catalysts concentration, the kinds of pollutant and aqueous pH values, on the degradation process and the recycling performance were systematically investigated. Via the calcined treatment (200℃, 2h), the final product was the multi-metal oxide, which exhibited enhanced catalytic performance for the RhB degradation. FeMnCoNi-O NPs can achieve complete degradation of RhB (20mg/L) in 10minutes by activating trace amounts of PMS (0.2mmol/L). With the help of free radical quenching experiment and XPS analysis, it is found the main active substances in the degradation system were 1O2 and SO4·- generated via persulfate activation.

wastewater treatment  /  advanced oxidation  /  multi-metal oxides  /  PMS activation  /  RhB degradation
Bang-li XU, Hai-xian YAN, Shi-ya WENG, Shi-qi WANG, Feng FANG. Degradation of Rhodamine B by FeMnCoNi-O activated potassium persulfate[J]. China Environmental Science, 2025 , 45 (2) : 759 -767 .
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Year 2025 volume 45 Issue 2
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  • Receive Date：2024-07-01
  • Online Date：2026-03-17
  • Published：2025-02-20
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  • Received：2024-07-01
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    School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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