Abstract Herein, silver/graphene oxide (Ag/GO) nanocomposite was fabricated by co-precipitation with green reducing agent and then was characterized with modern analytical techniques. The antibacterial activity was conducted via the effects of Ag/GO concentration, time, and pH. Results show that silver nanoparticles were uniformly distributed on the GO sheets with average size 17.65 ± 4.76 nm. Antibacterial performance was optimized at pH 5.6, eradicating P. aeruginosa in 180 minutes at 50 µg/L Ag/GO concentration and S. aureus in 480 minutes at 300 µg/L Ag/GO. This demonstrates the potential of Ag/GO as an antibacterial nanocomposite material.

中文翻译：

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纳米银修饰氧化石墨烯的合成、表征及抗菌活性研究

摘要 本文通过与绿色还原剂共沉淀制备银/氧化石墨烯 (Ag/GO) 纳米复合材料，然后利用现代分析技术对其进行表征。抗菌活性是通过 Ag/GO 浓度、时间和 pH 值的影响进行的。结果表明，银纳米颗粒均匀分布在 GO 片上，平均尺寸为 17.65 ± 4.76 nm。在 pH 5.6 时优化了抗菌性能，在 50 µg/L Ag/GO 浓度下可在 180 分钟内根除铜绿假单胞菌，在 300 µg/L Ag/GO 浓度下可在 480 分钟内根除金黄色葡萄球菌。这证明了 Ag/GO 作为抗菌纳米复合材料的潜力。