基于油菜花粉模板制备Fe基复合材料及其催化特性

doi:10.11896/cldb.22040339

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Abstract Using rape pollen as a biological template, Fe-based composites were prepared by coprecipitation-calcination method for phenol degradation by activated persulfate. The Fe-based composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and specific surface area analyzer(BET). Phenol as the target pollutant, the effects of catalyst dosage, persulfate dosage, initial pH and phenol concentration on the degradation of phenol were investigated. The results show that the Fe-based composites have excellent performance in the degradation of phenol by activating persulfate. Under the optimal reaction conditions (25 ℃, the initial concentration of phenol was 200 mg/L, the dosage of catalyst was 3 g/L, and the dosage of persulfate was 8.4 mmol/L), the degradation rate of phenol after the reaction for 60 min could be obtained up to 91%. The Fe-based composite material can be separated by magnetic separation and easy to recover. It can activate persulfate to degrade phenol in a wide pH range. After repeated use for 3 times, the degradation rate of phenol can still reach 81%, indicating that the Fe-based composite material is stable. Phenol is degraded through the Fe-based composites activated persulfate to produce SO₄·^- and HO· by Fe²⁺and the residual C and its functional groups in the pollen template activated persulfate.

Key words： rape pollen Fe-based composites persulfate activation phenol

Published: 10 November 2023 Online: 2023-11-10

CLC number:	TB332
	X703.1

Fund:National Natural Science Foundation of China(51808442).

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	CHENG Aihua
	XIE Qianyi

Cite this article:

CHENG Aihua,XIE Qianyi. Preparation of Fe-based Composites Based on Rape Pollen Template and Their Catalytic Properties[J]. Materials Reports, 2023, 37(21): 22040339-6.

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http://www.mater-rep.com/EN/10.11896/cldb.22040339 OR http://www.mater-rep.com/EN/Y2023/V37/I21/22040339

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