首页|Recovery and in-situ reduction of precious metals by graphdiyne and graphdiyne oxide for antibacterial use

Recovery and in-situ reduction of precious metals by graphdiyne and graphdiyne oxide for antibacterial use

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Based on the in-situ self-reduction and chemical stability,graphdiyne(GDY)and graphdiyne oxide(GDYO)are used as trapping agents to investigate the ability for recovering Au3+,Ag+,and Pd2+under different pH values and interfering ions.Under strong acidity at pH=1,these two agents demonstrate high select recovery towards the three precious metal ions,which could be in-situ reduced to nanoparticles(NPs).In addition,super-paramagnetic Fe3O4 NPs are deposited on the surfaces of GDY and GDYO.The magnetic responses enable GDY-Fe3O4 to recover precious metals conveniently and effi-ciently by the aid of an external magnetic field.This study also confirms the antibacterial activity of the as-recovered NPs deposited on GDY and GDYO against Escherichia coli and Staphylococcus aureus(1 × 105 colony-forming unit(CFU)·ml-1),and the antibacterial rates are 100％.This strategy of recovering precious metals and subse-quently reusing to combat pathogens will be of great sig-nificance for environmental remediation and biomedical applications.

GraphdiyneIn-situ reductionRecoveryPrecious metalsAntibacterial

Ming-Ji Jiang、Ya-Na Zhang、Ling-Shen Meng、Jing Kang、Yong-Jun Li、Alideertu Dong

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College of Chemistry and Chemical Engineering Inner,Mongolia University,Hohhot 010021,China

Engineering Research Center of Dairy Quality and Safety Control Technology,Ministry of Education,Inner Mongolia University,Hohhot 010021,China

Department of Chemistry,University of Zurich,CH-8057 Zurich,Switzerland

Laboratory of Organic Solids and Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaInner Mongolia Autonomous Region Program for Key Science and TechnologyOrdos City Program for Key Science and TechnologyProgram of Higher-Level Talents of Inner Mongolia UniversityResearch Program of science and technology at Universities of Inner Mongolia Autonomous RegionProgram for Innovative Research Team in Universities of Inner Mongolia Autonomous Region

22062017221640152020GG01612022YY00310000-22311201/035NJZZ23091NMGIRT2210

2024

10.1007/s12598-023-02549-w

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(4)
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