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云师大化工学院赵焱教授、张金、张蕾等在top期刊《Small》发表最新研究成果

已有 1359 次阅读 2024-8-31 22:34 |个人分类:云师大研究|系统分类:论文交流

   2024年8月28日,Wiley旗下top期刊《Small》(影响因子:13)在线发表了云南师范大学化学与化工学院赵焱教授课题组最新研究成果《Efficient Recovery of Rare Earth Elements from Acidic Wastewater by a Green β-CDs-Functionalized Nanosponge》。云南师范大学化学化工学院为第一作者单位,赵焱教授、张金、张为共同通讯作者。

https://onlinelibrary.wiley.com/doi/10.1002/smll.202404002

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Abstract

The recovery of rare earth elements (REEs) from acidic wastewater is crucial to sustainable development, industrial processes, and human health. In this research, β-cyclodextrin-based nanosponges (β-CD/PVA-SA NSs) have been proposed as potential adsorbents for europium (Eu), dysprosium (Dy), and gadolinium (Gd) recovery. The nanosponges are synthesized by cross-linking β-cyclodextrin (β-CD) functionalized polyvinyl alcohol (PVA) and sodium alginate (SA). Experimental results indicate that β-CD/PVA-SA NSs exhibit favorable selectivity for Eu, Dy, and Gd, with the maximum adsorption capacity of 222, 217, and 204 mg/g, respectively, in addition to stability and cyclicity. β-CD/PVA-SA NSs maintain selective adsorption effects towards RE ions that are present in acidic mine drainage (AMD), thereby highlighting their potential for practical applications. Furthermore, density functional theory (DFT) simulations have unveiled the fundamental interactions between the functional groups anchored in β-CD/PVA-SA NSs and the REEs, providing vital insights into their adsorption mechanism. Hence, the utilization of β-CD/PVA-SA NSs has the potential to advance initiatives in remediating acidic water pollution and facilitating the sustainable recycling of RE resources.

扩展阅读:

云师大化工学院赵焱教授、张金、张蕾等在top期刊《Small》发表最新研究成果

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