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Liquid metal-embedded magnetic hydrogel beads as novel adsorbents for malachite green removal

文献类型： 外文期刊

作者： Li, Peiyi 1 ; Zhao, Jinxue 1 ; Zhai, Xuejing 1 ; Wang, Xinghai 1 ; Wen, Yahui 1 ; Wu, Lidong 1 ;

作者机构： 1.Chinese Acad Fishery Sci, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Shandong, Peoples R China

2.Chinese Acad Fishery Sci, Fishery Engn Inst, Beijing 100141, Peoples R China

3.Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai 201306, Peoples R China

4.Dalian Ocean Univ, Coll Food Sci & Engn, Dalian 116023, Peoples R China

关键词： Magnetic hydrogel beads; LM; Malachite green; Adsorption

期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）

ISSN： 0308-8146

年卷期： 2025 年 464 卷

页码：

收录情况： SCI

摘要： Malachite green (MG) is widely used in aquaculture as a parasiticide. It has generated much concern due to its carcinogenesis, mutagenesis, chromosomal fractures, teratogenicity, and respiratory toxicity. Effective methods for removing MG from water or other media are highly needed. Here, liquid metal (LM) is embedded into the magnetic hydrogel to create magnetic LM hydrogel beads with high adsorption capacity. The morphology and physical properties of the LM-embedded magnetic hydrogel beads are characterized using scanning electron microscopy, optical microscopy, and texture analysis methods. The adsorption efficiency of malachite green was assessed using spectrophotometric analysis at a wavelength of 623 nm. The hardness of these hydrogel beads reached a maximum of 4610 g, and its adsorption capacity reached 10 mg/g. Under the optimal condition, 0.05 %wt LM embedded magnetic hydrogel could remove 100 % of MG. This highly efficient magnetic adsorbent for dye removal has considerable potential for rapidly separating toxic contaminants from aquatic animal tissues, providing a cost-effective and straightforward solution to reduce dye pollution in aquatic environments and food products.

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