Characteristics and antifungal activity of CuO-ZnO nanocomposites synthesised by the sol-gel technique

Authors

  • Vo N.L. Uyen Vietnam National University, Ho Chi Minh city, Vietnam; University of Technology, Vietnam National University, Ho Chi Minh city, Vietnam
  • Nguyen P. Anh Institute of Chemical Technology, Vietnam Academy of Science and Technology, Vietnam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Vietnam
  • Nguyen T.T. Van Institute of Chemical Technology, Vietnam Academy of Science and Technology, Vietnam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Vietnam
  • Nguyen Tri Institute of Chemical Technology, Vietnam Academy of Science and Technology, Vietnam
  • Nguyen V. Minh Biotechnology Department, Open University Ho Chi Minh city, Vietnam
  • Nguyen N. Huy Vietnam National University, Ho Chi Minh city, Vietnam; University of Technology, Vietnam National University, Ho Chi Minh city, Vietnam
  • Tran V. Linh Vietnam National University, Ho Chi Minh city, Vietnam; University of Technology, Vietnam National University, Ho Chi Minh city, Vietnam
  • Pag-Asa Gaspillo Department of Chemical Engineering, De La Salle University, Manila, Philippines
  • Huynh K.P. Ha* Vietnam National University, Ho Chi Minh city, Vietnam; University of Technology, Vietnam National University, Ho Chi Minh city, Vietnam

Abstract

CuO-ZnO nanoparticles were successfully synthesized by the sol-gel method. Characteristic properties of the synthesized nanoparticles were investigated using X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), N2 adsorption/desorption isotherms, and BJH pore diameter distributions. The formation of highly crystalline CuO and ZnO was confirmed by XRD. FT-IR confirmed that Zn-O and Cu-O bonds were formed in the material. SEM and TEM images showed that the obtained CuO-ZnO nanoparticles were nearly spherical in shape and had a uniform size distribution with sizes ranging between 5-20 nm for the CuO-containing phase and 50-100 nm for the ZnO-containing phase. The CuO-ZnO sample showed effective antifungal activities against four strains. Aspergillus and Penicillium were completely inhibited with a concentration of 5 mg/ml of CuO-ZnO. For the Magnaporthe and Neoscytalidium strains, the minimum inhibitory concentration was 10 mg/ml.

Keywords:

antifungal activity, CuO, nanocomposite, sol-gel, ZnO

DOI:

https://doi.org/10.31276/VJSTE.62(1).17-22

Classification number

2.2

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Published

2020-03-15

Received 16 January 2020; accepted 6 March 2020

How to Cite

Vo N.L. Uyen, Nguyen P. Anh, Nguyen T.T. Van, Nguyen Tri, Nguyen V. Minh, Nguyen N. Huy, Tran V. Linh, Pag-Asa Gaspillo, & Huynh K.P. Ha. (2020). Characteristics and antifungal activity of CuO-ZnO nanocomposites synthesised by the sol-gel technique. Vietnam Journal of Science, Technology and Engineering, 62(1), 17-22. https://doi.org/10.31276/VJSTE.62(1).17-22

Issue

Section

Physical Sciences