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Porous defective carbon ferrite for adsorption and photocatalysis toward nitrogen compounds in pre-treated biogas slurry

文献类型： 外文期刊

作者： Li, Jie 1 ;

作者机构： 1.Fujian Acad Agr Sci, Inst Agr Engn & Technol, Fuzhou 350003, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.996； 五年影响因子：5.516 ）

ISSN： 2045-2322

年卷期： 2022 年 12 卷 1 期

页码：

收录情况： SCI

摘要： Carbon ferrite (C-Fe3O4) with hydrophilic functional groups and lattice defects was synthesized in anhydrous molten alkali system by fern leaves and ferric chloride as raw materials. Structural characterization results showed that carbon ferrite obtained oxygen-containing groups on the carbon surface. And structural pores and lattice defects resulted from spontaneous accumulation and "directive-connection" of ferrite (Fe3O4) nanoparticles. Carbon ferrite displayed an adsorption efficiency of 29.0% and excellent photocatalytic degradation of 80.8% toward nitrogen compounds (initial concentration of 430 mg/L) in pre-treated biogas slurry. The micromechanism for nitrogen compounds removal was discussed at the molecular/atomic level by exploring carbon ferrite "structure-activity", which provides a design idea from microscopic perspective for the preparation of environmental materials with reactive sites.

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