Highly selective adsorption of rhenium by amyloid-like protein material

MUHAMMAD Arif ¹YANG QingMin ²KANWAL Aisha ¹ZHAO Jian ¹NAWAZ Mohsan ³REN Hao ¹YANG Peng¹

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作者信息

1. Key Laboratory of Applied Surface and Colloid Chemistry,Ministry of Education;Xi'an Key Laboratory of Polymeric Soft Matter;International Joint Research Center on Functional Fiber and Soft Smart Textile,School of Chemistry and Chemical Engineering,Shaanxi Normal University Xi'an 710119,China
2. School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi'an 710072,China
3. Department of Chemistry,Hazara University,Mansehra,KPK,Pakistan
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Abstract

Rhenium separation from molybdenum in molybdenite minerals and waste leachate has become an emerging challenge.Ad-dressing this challenge,we prepared a set of protein-based alkylamine/alkylammonium salts complexes as extractants for selective uptake of rhenium from molybdenum,where the protein component turned into the insoluble amyloid-like structure when its internal disulfide bonds were reduced,namely phase-transition process.Among them,the phase-transited lysozyme and methyletrioctyleammonium chloride complex(PTL-N263)exhibited the most efficient adsorption at the alkaline condition for the electrostatic interaction between negatively charged metal ions with positively charged center(R4N+)in N263,where negatively charged protein residues hindered the ion exchange of Cl-in N263 for larger size Mo species(Mo7O246-)than smaller size Re species(ReO4-).The adsorption follows the Freundlich model and pseudo-second-order kinetics,which exhibits top-level adsorption performance with a maximum adsorption capacity of 124 mg/g and a separation factor(βRe/Mo)of 2.78 × 103 for Re.The adsorption capacity per unit area(57.2 mg/(g m2))is 1.6-41 times higher than previously reported adsorbents,and the cost for adsorbing 1 g of Re(Ⅶ)is $1.07,indicating its industrial capability.This adsorption strategy can be applied to separating Re from Mo in binary solutions and industrial wastewater with other competing ions.

Key words

amyloid/phase-transited lysozyme/selective adsorption/rhenium/waste leachate solution

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基金项目

National Science Fund for Distinguished Young Scholars(52225301)

National Key R&D Program of China(2020YFA0710400)

National Key R&D Program of China(2020YFA0710402)

National Natural Science Foundation of China(21905166)

National Natural Science Foundation of China(21875132)

National Natural Science Foundation of China(51903147)

111 Preject(B14041)

Fundamental Research Funds for the Central Universities(GK201801003)

Fundamental Research Funds for the Central Universities(2020TS092)

Fundamental Research Funds for the Central Universities(GK202205013)

Innovation Capability Support Program of Shaanxi(2020TD024)

Science and Technology Innovation Team of Shaanxi Province(2022TD-35)

出版年

2024

中国科学:技术科学(英文版)

中国科学院

中国科学:技术科学(英文版)

CSTPCDEI

影响因子：1.056

ISSN：1674-7321

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