Synthesis of hybrid silver–doped graphene oxide material as a superior antibacterial performance and cadmium ion sensor

Authors

  • Nguyen Thi Thuy Linh
  • Che Quang Cong
  • Nguyen Minh Dat
  • Tran Chau Diep
  • Ninh Thi Tinh
  • Doan Ba Thinh
  • Nguyen Thanh Hoai Nam
  • Chau Gia Khang
  • Le Thi Bich Lieu
  • Doan Thi Yen Oanh
  • Hoang Minh Nam
  • Mai Thanh Phong
  • Nguyen Huu Hieu

DOI:

https://doi.org/10.51316/jca.2021.119

Abstract

In this study, in-situ method was applied for synthesizing silver-doped graphene oxide (Ag/GO). The material was extensively characterized by X-ray diffraction, Transmission electron microscopy, Scanning electron microscope, Raman spectroscopy, energy-dispersive X-ray spectroscopy, and UV-Vis spectroscopy. The characterization analysis results demonstrated that Ag/GO nanocomposite was successfully synthesized, revealing the formation of AgNPs on GO sheets with an average diameter ranging from 15 to 30 nm. The Ag/GO nanocomposite exhibited excellent antibacterial effect against three strains of Gram-negative (Escherichia coli, Pseudomonas aeruginosa), and Gram-positive (Staphylococcus aureus) bacteria using the zone inhibition method. Moreover, the Ag/GO nanocomposite was also useful for the detection of Cd2+ ions in an aqueous solution with a detection limit of 10.15 mg/L. This study developed an eco-friendly route for the fabrication of Ag/GO nanocomposite using a non-toxic procedure that could be a great potential for biomedical-related applications and colorimetric detection of heavy metal present in water.

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Published

30-01-2022

Issue

Vol. 10 No. 1S (2021): Special Issue 1