Copper-uptake mediated by an ecofriendly zwitterionic ionic liquid: A new challenge for a cleaner bioeconomy  

作　　者：Marie E.Vuillemin Christophe Waterlot Anthony Verdin Sylvain Laclef Christine Cézard David Lesur Catherine Sarazin Dominique Courcot Caroline Hadad Eric Husson Albert Nguyen Van Nhien 

机构地区：[1]Enzyme and Cell Engineering,UMR 7025 CNRS,University of Picardie Jules Verne-Faculty of Sciences,33 rue Saint Leu,80039 Amiens Cedex,France [2]University of Lille,Mines-Télécom Institute,University of Artois,JUNIA,ULR 4515-LGCgE,Laboratory of Civil Engineering and Geo-Environment,F-59000 Lille,France [3]Environmental Chemistry and Life Interactions Unit,UCEIV UR4492,FR CNRS 3417,University of Littoral Cote d’Opale(ULCO),Dunkerque,France [4]Laboratory of Glycochemistry,Antimicrobials and Agroresources,UMR CNRS 7378,University of Picardie Jules Verne-Faculty of Sciences,33 rue Saint Leu,80039 Amiens Cedex,France [5]Institute of Chemistry of Picardie FR CNRS 3085,80039 Amiens,France

出　　处：《Journal of Environmental Sciences》2023年第8期92-101,共10页环境科学学报（英文版）

基　　金：SFR Condorcet(FR CNRS 3417)for financial support.

摘　　要：This study aims to investigate the ability of an imidazolium biobased Zwitterionic Ionic Liquids(ZILs)in enhancing the phytoavailability of copper from garden(G)and vineyard(V)soils using the model plant ryegrass.Uncontaminated and artificially contaminated CuSO_(4) soils,unamended and ZIL-amended soil modalities were designed.The copper/ZIL molar ratio(1/4)introduced was rationally established based on molecular modeling and on the maximal copper concentration in artificially contaminated soil.Higher accumulation of copper in the shoots was detected for the uncontaminated and copper contaminated ZIL amended V soils(18.9 and 23.3 mg/kg,respectively)contrary to G soils together with a ZIL concentration of around 3%(W/W)detected by LC-MS analyses.These data evidenced a Cu-accumulation improvement of 38%and 66%compared to non-amended V soils(13.6 and 13.9 mg/kg respectively).ZIL would be mainly present under Cu(II)-ZIL_(4) complexes in the shoots.The impact on the chemical composition of shoot was also studied.The results show that depending on the soils modalitity,the presence of free copper and/or ZIL led to different chemical compositions in lignin and monomeric sugar contents.In the biorefinery context,performances of enzymatic hydrolysis of shoots were also related to the presence of both ZIL and copper under free or complex forms.Ecotoxicity assessment of the vineyard soil samples indicated that the quantity of copper and ZIL remaining in the soils had no significant toxicity.ZIL amendment in a copper-contaminated soil was demonstrated as being a promising way to promote the valorization of phytoremediation plants.

关 键 词：Cu-accumulation Biobased Zwitterionic Ionic Liquid (ZIL) Enzymatic hydrolysis ECOTOXICITY 

分 类 号：X53[环境科学与工程—环境工程]