Innovative peptide-functionalized microbeads: A highly selective biosorbent for scandium extraction

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-01-31 DOI:10.1016/j.seppur.2025.131893

Mengyun Zhang, Shujie Shang, Hongjing Li, Lei Tian, Kun Liu, Denys Villa-Gomez, Yijun Cao, Yun Liu

{"title":"Innovative peptide-functionalized microbeads: A highly selective biosorbent for scandium extraction","authors":"Mengyun Zhang, Shujie Shang, Hongjing Li, Lei Tian, Kun Liu, Denys Villa-Gomez, Yijun Cao, Yun Liu","doi":"10.1016/j.seppur.2025.131893","DOIUrl":null,"url":null,"abstract":"Scandium recovery from tailings and related leachate offers both economic and environmental benefits, but faces technical challenges due to substantial competing impurities. This study designed a novel metal-binding peptide with high affinity and selectivity towards scandium (ScBP). A comprehensive characterization revealed that oxygen atoms from aspartic acid, glutamic acid and tyrosine residue coordinated with scandium. To facilitate efficient scandium recovery from solutions, the water-soluble ScBP was immobilized on magnetic beads through thiol-maleimide click chemistry. The resulting Mag@ScBP microbeads exhibited a maximum scandium adsorption capacity of 124.92 mg/g and high selectivity for scandium at lower pH. Notably, the microbeads were tested with two types of simulated industrial wastewater generated during the processing of the Bayan Obo mine, achieving over 96 % scandium recovery efficiency for both solutions. Moreover, the purity of the recovered scandium increased by 900 to 1200-fold following a straightforward adsorption–desorption process, highlighting their excellent potential for scandium recovery in complex industrial contexts.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"47 1","pages":""},"PeriodicalIF":8.1000,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2025.131893","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Scandium recovery from tailings and related leachate offers both economic and environmental benefits, but faces technical challenges due to substantial competing impurities. This study designed a novel metal-binding peptide with high affinity and selectivity towards scandium (ScBP). A comprehensive characterization revealed that oxygen atoms from aspartic acid, glutamic acid and tyrosine residue coordinated with scandium. To facilitate efficient scandium recovery from solutions, the water-soluble ScBP was immobilized on magnetic beads through thiol-maleimide click chemistry. The resulting Mag@ScBP microbeads exhibited a maximum scandium adsorption capacity of 124.92 mg/g and high selectivity for scandium at lower pH. Notably, the microbeads were tested with two types of simulated industrial wastewater generated during the processing of the Bayan Obo mine, achieving over 96 % scandium recovery efficiency for both solutions. Moreover, the purity of the recovered scandium increased by 900 to 1200-fold following a straightforward adsorption–desorption process, highlighting their excellent potential for scandium recovery in complex industrial contexts.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.