热敏钯印迹聚合物的制备及其吸附分离性能和实际应用评估

IF 2.6 4区 化学 Q3 POLYMER SCIENCE
Wan Xu, Huijuan Zhang, Ting Huo, Yongsheng Xiang, Xiaojian Ou, Yuan Sun, Yuanjun Sun, Zhenbin Chen
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引用次数: 0

摘要

钯(Pd)优异的物理和化学特性使其应用和需求量逐渐增加。因此,开发一种能从二次资源中有效分离和提纯钯的新材料以确保钯的供应就显得尤为重要。本研究合成了一种热敏钯智能印迹聚合物(Pd-T-SIP),可实现钯的高效分离和提纯。研究人员对 Pd-T-SIP 的微观结构和形态进行了表征。实验结果表明,Pd-T-SIP 对钯(IV)的最大吸附量(Q)为 0.1022 mmol/g,解吸率(D)为 83.09%,且具有良好的重复利用性。理论研究表明,Pd-T-SIP 的吸附过程适合用准一阶模型和 Langmuir 模型来描述,这表明 Pd-T-SIP 的吸附是单层吸附。最后,将 Pd-T-SIP 应用于铂族催化剂浸出液,可以发现其吸附/解吸效果更为出色,吸附量达到 0.1558 mmol/L,解吸率达到 77.14%,一个吸附/解吸周期后钯的纯度从 13.75%提高到 30.62%,一个吸附/解吸周期后铂族金属的纯度从 40.29%提高到 73.56%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Fabrication of thermosensitive palladium imprinted polymers and evaluation of their adsorption separating performances and practical applications

Fabrication of thermosensitive palladium imprinted polymers and evaluation of their adsorption separating performances and practical applications

The excellent physical and chemical properties of palladium(Pd) have made its application and demand increase gradually. Therefore, it is important to develop a new material to efficiently separate and purify palladium from secondary sources to ensure its supply. In this work, a thermosensitive palladium smart imprinted polymer(Pd-T-SIP) was synthesized, which could achieve the efficient separation and purification of Pd. The microstructure and morphology of Pd-T-SIP were characterized. The experimental results showed that the Pd-T-SIP showed the maximum adsorption amount(Q) of 0.1022 mmol/g for Pd(IV), the desorption rate(D) was 83.09%, and it had good reusability. Theoretical studies showed that the adsorption process of Pd-T-SIP was suitable to be described by quasi-first-order model and Langmuir model, which indicated that the adsorption of Pd-T-SIP was monolayer adsorption. Finally, Pd-T-SIP was applied to the platinum group catalyst leach solution, and it could be found that its adsorption/desorption effect was more excellent, with its adsorption amount reaching 0.1558 mmol/L, desorption rate reaching 77.14%, and the palladium purity after one adsorption/desorption cycle increased from 13.75% to 30.62%, and the purity of platinum group metals increased from 40.29% to 73.56% after one adsorption/desorption cycle.

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来源期刊
Journal of Polymer Research
Journal of Polymer Research 化学-高分子科学
CiteScore
4.70
自引率
7.10%
发文量
472
审稿时长
3.6 months
期刊介绍: Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.
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