以乙烯二氧化基结合有机聚合物用于从电子废物中回收黄金
Tian-Xiong Wang1, Jiande Dong1, Siyu Ji1
1Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Langmuir : the ACS journal of surfaces and colloids
|January 29, 2026
概括
研究人员开发了以乙烯二氧化硫功能化合有机聚合物 (EDOT-COP) 来有效地从电子废物中回收黄金. 这些聚合物表现出高吸附能力和选择性,即使在多次使用后.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 黄金是金融,电子和技术领域的关键材料.
- 从电子垃圾中有效地回收黄金是一个持续的技术挑战.
- 结合有机聚合物具有选择性金属吸附的潜力.
研究的目的:
- 设计和合成新的吸附剂用于Au (III) 恢复.
- 评估开发材料的吸附能力,选择性和稳定性.
- 为了研究黄金吸附和回收的机制.
主要方法:
- 乙烯二氧化功能化合有机聚合物的合成 (EDOT-COPs).
- 聚合物特性 (孔隙性,热和化学稳定性) 的表征.
- 使用Au(III) 溶液与竞争的金属离子进行吸附实验.
- 循环吸附-脱附试验和机械学研究 (光谱,协调分析).
主要成果:
- 在EDOT-COP中,Au(III) 的吸收能力很高 (>1700 mg g-1).
- 从含有Cu (II),Ni (II) 和Pb (II) 的溶液中选择性去除96%以上的Au (III).
- 材料在八个吸附-脱附周期中保持高效率和结构完整性.
- 协调键和Au(III) 的部分减少是主要的吸附机制.
结论:
- EDOT-COPs是有效和稳定的吸附剂,用于Au (III) 恢复.
- 以功能组为导向的聚合物设计策略对贵金属回收有希望.
- 从酸性液中选择性回收黄金被证明.
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