Open Access

Downloads

Download data is not yet available.

Abstract

By using water as a solvent, copper nanoparticles (CuNPs) have been synthesized from copper sulfate via chemical reduction method in the presence of trisodium citrate dispersant and polyvinylpyrrolidone (PVP) as capping agent. The effects of the experimental parameters such as the concentration of reducing agent (NaBH4), reaction temperature, molar ratio of citrate/Cu2+ and weight percentage ratios of Cu2+/PVP on the CuNP sizes were studied. The size of CuNPs in a range of 31 nm was obtained at NaBH4 concentration of 0.2 M, 50oC, citrate/Cu2+ molar ratio of 1.0 and Cu2+/PVP weight percentage of 5%. The colloidal CuNPs were characterized by using UV–Visible spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction (XRD) techniques. The colloidal solution of CuNPs (3±1 nm) was investigated the potential against Phytophthora spp. which cause economically crop diseases. Under in vitro test conditions, the inhibition of Phytophthora spp. mycelia growth at three concentrations of CuNPs (10, 20, 30 ppm) after 48 hours are 90.18%, 91.87% and 100%, respectively. These results provided a simple and economical method to develop the CuNPs-based-fungicide.


 



Author's Affiliation
Article Details

Issue: Vol 2 No 6 (2018)
Page No.: 48-56
Published: Sep 17, 2019
Section: Original Research
DOI: https://doi.org/10.32508/stdjns.v2i6.843

 Copyright Info

Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Hao, H. M., Du, C. V., Dung, D. T. N., Chuong, C. X., Phong, N. T. P., Tri, N. H., & Van, P. T. B. (2019). Synthesis, characterization and evaluation of copper nanoparticles as agrochemicals against Phytophthora spp. Science and Technology Development Journal - Natural Sciences, 2(6), 48-56. https://doi.org/https://doi.org/10.32508/stdjns.v2i6.843

 Cited by



Article level Metrics by Paperbuzz/Impactstory
Article level Metrics by Altmetrics

 Article Statistics
HTML = 37 times
Download PDF   = 21 times
Total   = 21 times