Magnetic Hydrophobic Cellulose Nanocomposites for Efficient Removal of Oil Spills and Organic Solvents

IF 5.2 3区工程技术 Q2 ENERGY & FUELS

Energy & Fuels Pub Date : 2024-11-26 DOI:10.1021/acs.energyfuels.4c0423210.1021/acs.energyfuels.4c04232

Alaleh Omidi, Fateme Firoozbakht, Hassan Zali Boeini* and Rajender S. Varma,

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引用次数: 0

Abstract

Oil/chemical spill accidents and oily wastewater discharge from industry have been significant global environmental threats and have attracted a great deal of attention. Oil contaminants are commonly toxic, carcinogenic, teratogenic, and hazardous to human health and aquatic organisms. Therefore, the rapid adsorption of oil from water by an efficient adsorber has become a challenging issue. This paper reports oil superadsorbent hydrophobic (cellulose maleate derivatives (CMD)/Fe₃O₄@SiO₂) with cheap and accessible materials based on cellulose nanocrystals (CNC), whose hydrophobicity can be attributed to the cross-linker of divinylbenzene (DVB), which is attached to it after the modification of cellulose by maleic anhydride. Additionally, to improve the recovery of the adsorbent from the environment, the substrate was magnetized using iron nanoparticles. Easy synthesis and ultrafast adsorption time (3 s), high adsorption capacity for oil and organic solvents (200–253 mg/g), and maintaining an adsorption efficiency of more than 80% in 8 consecutive cycles make it a stable, amazing, and efficient adsorbent.

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磁性疏水纤维素纳米复合材料有效去除石油泄漏和有机溶剂

石油/化学品泄漏事故和工业含油废水排放已成为全球性的重大环境威胁，引起了人们的广泛关注。石油污染物通常有毒、致癌、致畸，对人体健康和水生生物有害。因此，利用高效吸附剂快速吸附水中的油已成为一个具有挑战性的问题。本文报道了一种基于纤维素纳米晶（CNC）的疏油超吸附剂（马来酸纤维素衍生物(CMD)/Fe3O4@SiO2），其疏水性可归功于二乙烯基苯（DVB）的交联剂，该交联剂是在马来酸酐改性纤维素后附着在其上的。此外，为了提高吸附剂从环境中的回收率，使用铁纳米颗粒对基质进行磁化。简单的合成和超快的吸附时间（3 s），对油和有机溶剂的高吸附能力（200-253 mg/g），连续8次循环保持80%以上的吸附效率，使其成为稳定，令人惊叹的高效吸附剂。

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来源期刊

Energy & Fuels 工程技术-工程：化工

CiteScore

9.20

自引率

13.20%

发文量

1101

审稿时长

2.1 months

期刊介绍： Energy & Fuels publishes reports of research in the technical area defined by the intersection of the disciplines of chemistry and chemical engineering and the application domain of non-nuclear energy and fuels. This includes research directed at the formation of, exploration for, and production of fossil fuels and biomass; the properties and structure or molecular composition of both raw fuels and refined products; the chemistry involved in the processing and utilization of fuels; fuel cells and their applications; and the analytical and instrumental techniques used in investigations of the foregoing areas.