Abstract
The synthesis of iron-based nanoparticles (Fe NPs) using traditional preparation methods suffered from the disadvantages of high cost, environmental harm, and easy agglomeration. In this study, a novel eco-friendly method was proposed for the synthesis of iron nanomaterials (ML-Fe NPs): using antioxidant components extracted from mulberry leaf to reduce divalent iron (II). The preparation conditions of ML-Fe NPs were optimized by orthogonal tests. The prepared ML-Fe NPs exhibited an amorphous core–shell structure, displaying excellent dispersion and stability. During the synthesis process of ML-Fe NPs, the polyphenol molecules in mulberry leaf extract played a dominant role. A possible synthetic mechanism involving complexation, reduction, and encapsulation was proposed. Furthermore, the ML-Fe NPs were utilized to construct an ML-Fe NPs/peroxymonosulfate catalytic system for the degradation of Rhodamine B dye wastewater. The ML-Fe NPs demonstrated remarkable catalytic potential, achieving a 99% degradation efficiency for Rhodamine B within a span of 40 min.
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This work was supported by the Natural Science Foundation of Anhui Province (Grant No. 2108085ME187), University Natural Science Research Key Project of Anhui Province (Grant No. 2022AH050338), and the Open Project of Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education (Grant No. BWPU2020KF01).
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The contributions of each author to this study are as follows: Xinxiang Wang: methodology, investigation, and writing (original draft preparation, editing); Jinwei Zhang: investigation, data curation; Yiqi Liu: conceptualization, writing ((original draft editing); Yan Li: investigation; Yuntao Zhu: investigation; Zhiqiang Dong: investigation; Dongxiao Sun: supervision; Lei Ding: conceptualization, writing (editing) and supervision.
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Wang, X., Zhang, J., Liu, Y. et al. Green synthesis of iron nanoparticles using mulberry leaf extract: characterization, identification of active biomolecules, and catalytic activity. Environ Sci Pollut Res 31, 20311–20329 (2024). https://doi.org/10.1007/s11356-024-32405-y
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DOI: https://doi.org/10.1007/s11356-024-32405-y