首页|Controllable preparation of MnCo2O4 spinel and catalytic persulfate activation in organic wastewater treatment:Experimental and immobilized evaluation

Controllable preparation of MnCo2O4 spinel and catalytic persulfate activation in organic wastewater treatment:Experimental and immobilized evaluation

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Transitional metal oxides are excellent candidates as heterogeneous catalysts for activating persulfate towards organics degradation.In this study,MnCo2O4 spinel was successfully prepared using a solvent-free molten method.The catalytic performance was systematically investigated and MnCo2O4 powder catalyst was success-fully immobilized on polyurethane(PU)membrane through electrospinning to assess its application potential.The results showed that peroxymonosulfate(0.1 g L-1)activated by MnC02O4(0.1 g L-1)reached 99.92％degradation in 10 min when treating 0.04 g L-1 rhodamine B as target pollutant.The abundant oxygen vacancies formation,synergistic effect of Co and Mn ions and high electron transfer mobility are contributing to production of reactive oxygen species.Combining with quenching experiment and time-resolved EPR,the contribution of various active species was proposed,of which 1O2 exhibited the dominant role.The flowing reaction run by the MnCo2O4-PU membrane activating PMS exhibited universal degradation on different target pollutants.

MnCo2O4SpinelPeroxymonosulfateCatalyticReactive oxygen species

Qixu Shi、Juexiu Li、Yongpeng Ma、Rui Zhao、Miaomiao Li、Xinrui Lei、Maiqi Sun、Yongchao Zhao、Gaihuan Ren、Jinping Jia

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School of Smarts Energy & Environment,Zhongyuan University of Technology,Zhengzhou,450007,China

School of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou,450001,China

International Education College,Henan Agricultural University,Zhengzhou,450002,China

Research Institute of Textile and Clothing Industries,Zhongyuan University of Technology,Zhengzhou,450007,China

School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai,200240,China

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2024

10.1016/j.pnsc.2024.07.002

自然科学进展·国际材料(英文)
国家自然科学基金委员会

自然科学进展·国际材料(英文)

影响因子：0.25
ISSN：1002-0071
年,卷(期)：2024.34(4)