首页|Highly selective adsorption of rhenium by amyloid-like protein material

Highly selective adsorption of rhenium by amyloid-like protein material

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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.

amyloidphase-transited lysozymeselective adsorptionrheniumwaste leachate solution

MUHAMMAD Arif、YANG QingMin、KANWAL Aisha、ZHAO Jian、NAWAZ Mohsan、REN Hao、YANG Peng

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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

School of Chemistry and Chemical Engineering,Northwestern Polytechnical University,Xi'an 710072,China

Department of Chemistry,Hazara University,Mansehra,KPK,Pakistan

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National Science Fund for Distinguished Young ScholarsNational Key R&D Program of ChinaNational Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China111 PrejectFundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central UniversitiesInnovation Capability Support Program of ShaanxiScience and Technology Innovation Team of Shaanxi Province

522253012020YFA07104002020YFA0710402219051662187513251903147B14041GK2018010032020TS092GK2022050132020TD0242022TD-35

2024

10.1007/s11431-023-2497-3

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
年,卷(期)：2024.67(5)