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从矿山废水中提升稀土元素的回收,使用微生物衍生的硫化铁

Simin Jiang¹, Ronghao Wu¹, Qu Zhang²

¹Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, Fujian Province, China.

|September 17, 2025

概括

本研究介绍了生物合成的硫化铁纳米粒子 (FeS@MR-1),用于有效地从矿山废水中回收稀土元素 (REE). 这种新型生物材料显示了高的REE吸附和选择性回收,提供了一个可持续的解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
生物技术是生物技术.

背景情况:

在技术中对稀土元素 (REEs) 的需求不断增长,需要有效的回收方法.
由于天然可用性有限,矿山废水是REE开采的关键来源.
现有的REE回收方法经常面临效率和选择性方面的挑战.

研究的目的:

探索生物合成的硫化铁纳米颗粒 (FeS@MR-1) 对于从矿山废水中吸附 REE 的有效性.
评估FeS@MR-1对REE与非REE的选择性.
通过使用FeS@MR-1.来调查REE回收的潜在潜在机制和潜力.

主要方法:

生物合成的硫化铁纳米颗粒 (FeS@MR-1) 使用Shewanella oneidensis MR-1.
吸附实验以确定REE和非REE吸收效率.
使用各种物理化学技术对FeS@MR-1进行表征.
吸附动力学,异热和热力学分析.
使用乙酸用于REE回收的消化研究.

主要成果:

FeS@MR-1实现了高吸附效率的REEs (50.3-98.8%) 与最小的亲和力非REEs (1.20-6.37%).
生物FeS纳米粒子和细菌细胞之间的协同效应增强了分散,活性点和电子转移.
吸附之后是化学吸附,单层吸附和自发的外热过程.
使用酸实现了有效的REE脱吸 (78.9-92.8%),使得恢复成为可能.

结论:

与REE吸附的单个组件相比,FeS@MR-1显示出更高的性能.
这种生物材料具有从真正的矿山废水中选择性和高效地回收REE的巨大潜力.
这项研究强调FeS@MR-1是可持续的REE资源管理的实用和有前途的生物材料.

关键词:

生物材料是一种生物材料.铁硫化物是一种铁硫化物.稀土元素稀土元素是一种稀土元素.恢复恢复恢复恢复恢复这种植物是Shewanella oneidensis mr-1

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