Fe, Co/NPs@GO双金属三维粒子电极电催化氧化卡马西平

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Abstract The Fe-Co bimetallic particle electrodes (Fe,Co/NPs@GO) were synthesized by the freezing/carbonization method. And the degradation performance of the Fe,Co/NPs@GO bimetallic three-dimensional particle electrode system for CBZ was optimized by adjusting the precursor ratio of Fe and Co. The effects of current density and PMS dosage on CBZ degradation were examined. It was found that a removal rate of 99.5% for CBZ (1mg/L) could be achieved within 30min under the conditions of 0.15g/L Fe,Co/NPs@GO (Fe:Co=1:1), 3mmol/L PMS, and a current density of 20mA/cm². The addition of electrocatalytic conditions to the pure catalyst activation of PMS system resulted in an increase in the removal rate of CBZ by approximately 37%. Radical quenching experiments and electron paramagnetic resonance (EPR) analysis confirmed that ^•OH and ¹O₂ are the primary active species responsible for CBZ degradation, and the degradation mechanism of CBZ in the electrocatalytic coupling three-dimensional particle electrode activation of peroxymonosulfate (PMS) system was deduced. The recycling experiment of the particle electrode demonstrated that the Fe, Co/NPs@GO particle electrode possesses good catalytic stability and reusability.

Key words： three-dimensional particle electrode electrochemical oxidation carbamazepine peroxymonosulfate Fe-Co bimetallic particle electrode

Received: 19 January 2024

PACS:

X703

Corresponding Authors: 谢水波,教授,xiesbmr@263.net E-mail: xiesbmr@263.net

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	ZHOU Zi-xuan
	ZHUO Qiong-fang
	Ghulam Yasin
	XIE Shui-bo

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ZHOU Zi-xuan,ZHUO Qiong-fang,Ghulam Yasin等. Catalytic oxidation of carbamazepine by Fe, Co/NPs@GO bimetallic three-dimensional particle electrode[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(8): 4632-4640.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I8/4632

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