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

Ming-Ji Jiang ¹Ya-Na Zhang ¹Ling-Shen Meng ²Jing Kang ¹Yong-Jun Li ³Alideertu Dong¹

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作者信息

1. 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
2. Department of Chemistry,University of Zurich,CH-8057 Zurich,Switzerland
3. 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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Abstract

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.

Key words

Graphdiyne/In-situ reduction/Recovery/Precious metals/Antibacterial

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基金项目

National Natural Science Foundation of China(22062017)

National Natural Science Foundation of China(22164015)

Inner Mongolia Autonomous Region Program for Key Science and Technology(2020GG0161)

Ordos City Program for Key Science and Technology(2022YY003)

Program of Higher-Level Talents of Inner Mongolia University(10000-22311201/035)

Research Program of science and technology at Universities of Inner Mongolia Autonomous Region(NJZZ23091)

Program for Innovative Research Team in Universities of Inner Mongolia Autonomous Region(NMGIRT2210)

出版年

2024

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDCSCDEI

影响因子：0.801

ISSN：1001-0521

参考文献量63

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