Electrospun Membranes Modified with Lanmodulin-Derived Peptides for Lanthanide Adsorption

ACS Applied Engineering Materials Pub Date : 2024-10-07 DOI:10.1021/acsaenm.4c0051010.1021/acsaenm.4c00510

Lianna Johnson, Bernadette L. Schneider, Husain Mithaiwala, Matthew D. Green, Julie N. Renner* and Christine E. Duval*,

{"title":"Electrospun Membranes Modified with Lanmodulin-Derived Peptides for Lanthanide Adsorption","authors":"Lianna Johnson, Bernadette L. Schneider, Husain Mithaiwala, Matthew D. Green, Julie N. Renner* and Christine E. Duval*, ","doi":"10.1021/acsaenm.4c0051010.1021/acsaenm.4c00510","DOIUrl":null,"url":null,"abstract":"<p >Rare earth elements (REEs) are crucial for clean energy technologies but are predominantly purified by solvent extraction using strong acids. This work explores two adsorbents with selective chemistry based on lanmodulin-derived peptides. Two membrane adsorber platforms were synthesized: (1) a poly(vinylbenzyl chloride) membrane with a grafted poly(allyl methacrylate) network and (2) a poly(arylene ether sulfone) membrane with allyl pendant groups. Both membrane adsorbers were functionalized with LanM1 peptides via a thiol–ene click reaction. The morphology, surface chemistry, and adsorption of select trivalent lanthanides (La, Ce, Pr, Nd) were characterized in pH 4–5 solutions, mimicking phosphogypsum waste streams. Results from the adsorption experiments indicate that the lanmodulin peptide sequence maintains its ability to bind when it is immobilized on the surface of polymer fibers for some ions. Despite the different adsorbent designs, the measured capacity of both adsorbents is on the same order of magnitude, which may be explained by differences in the surface area of the fibers.</p>","PeriodicalId":55639,"journal":{"name":"ACS Applied Engineering Materials","volume":"2 10","pages":"2442–2453 2442–2453"},"PeriodicalIF":0.0000,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Engineering Materials","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaenm.4c00510","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Rare earth elements (REEs) are crucial for clean energy technologies but are predominantly purified by solvent extraction using strong acids. This work explores two adsorbents with selective chemistry based on lanmodulin-derived peptides. Two membrane adsorber platforms were synthesized: (1) a poly(vinylbenzyl chloride) membrane with a grafted poly(allyl methacrylate) network and (2) a poly(arylene ether sulfone) membrane with allyl pendant groups. Both membrane adsorbers were functionalized with LanM1 peptides via a thiol–ene click reaction. The morphology, surface chemistry, and adsorption of select trivalent lanthanides (La, Ce, Pr, Nd) were characterized in pH 4–5 solutions, mimicking phosphogypsum waste streams. Results from the adsorption experiments indicate that the lanmodulin peptide sequence maintains its ability to bind when it is immobilized on the surface of polymer fibers for some ions. Despite the different adsorbent designs, the measured capacity of both adsorbents is on the same order of magnitude, which may be explained by differences in the surface area of the fibers.

Abstract Image

查看原文本刊更多论文

用兰姆多肽修饰的电纺膜吸附镧系元素

稀土元素（REEs）对清洁能源技术至关重要，但目前主要采用强酸溶剂萃取法进行提纯。这项研究探索了两种基于兰姆多肽的选择性化学吸附剂。合成了两种膜吸附器平台：(1) 带有接枝聚甲基丙烯酸烯丙酯网络的聚(乙烯基苄基氯)膜；(2) 带有烯丙基悬垂基团的聚(芳基醚砜)膜。通过巯基-烯基点击反应，这两种膜吸附剂都被 LanM1 肽功能化。在 pH 值为 4-5 的溶液中，模拟磷石膏废物流，对所选三价镧系元素（La、Ce、Pr、Nd）的形态、表面化学和吸附进行了表征。吸附实验的结果表明，当 lanmodulin 肽序列固定在聚合物纤维表面时，它仍能与某些离子结合。尽管吸附剂的设计不同，但两种吸附剂测得的容量在同一数量级，这可能是由于纤维的表面积不同造成的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Applied Engineering Materials 材料科学-

自引率

0.00%

发文量

期刊介绍： ACS Applied Engineering Materials is an international and interdisciplinary forum devoted to original research covering all aspects of engineered materials complementing the ACS Applied Materials portfolio. Papers that describe theory simulation modeling or machine learning assisted design of materials and that provide new insights into engineering applications are welcomed. The journal also considers experimental research that includes novel methods of preparing characterizing and evaluating new materials designed for timely applications. With its focus on innovative applications ACS Applied Engineering Materials also complements and expands the scope of existing ACS publications that focus on materials science discovery including Biomacromolecules Chemistry of Materials Crystal Growth & Design Industrial & Engineering Chemistry Research Inorganic Chemistry Langmuir and Macromolecules.The scope of ACS Applied Engineering Materials includes high quality research of an applied nature that integrates knowledge in materials science engineering physics mechanics and chemistry.