Green synthesis of bimetallic nanoparticles from green tea leaf extract



  • Le Hong Minh (Corresponding Author) Institute of New Technology, Academy of Military Science and Technology
  • To Phuong Linh Institute of New Technology, Academy of Military Science and Technology
  • Nguyen Thi Thu Huong Institute of New Technology, Academy of Military Science and Technology
  • Nguyen Quang Ly Trường Sĩ quan Lục quân 1
  • Nguyen Trung Duc Faculty of Chemistry, VNU University of Science



Green synthesis; Bimetallic nanoparticles; Polyphenol; Green tea extract.


Zero-valent iron could effectively treat many different types of pollutants in the environment, such as chlorine organic compounds, heavy metals and some other inorganic substances. The combination of a metal catalyst with iron was increased the efficiency of pollutant removal, especially persistent organic compounds (POPs). Sustainable, environmentally friendly nanosynthetic methods were gaining more and more attention. In this sutdy, a method using non-toxic chemicals, environment-friendly solvents, simple process was decribes. Bimetallic nano materials Fe/Ni, Cu/Ni were synthesied by using green tea leaf extract in water solvent. In which, the mass of metal nanoparticles was formed the most at the second iron/metal salt molar ratio of 3:1. The optimal conditions for the synthesis of materials were: 12h time, 50 oC temperature, neutral pH.


. M. A. M. & F. A. M. FHeba Mohamed Fahmy, Fatma Mahmoud Mohamed, Mariam Hisham Marzouq, Amira Bahaa El-Din Mustafa, Asmaa M. Alsoudi, Omnia Ashoor Ali, “Review of Green Methods of Iron Nanoparticles Synthesis and Applications Heba,” Bionanoscience, vol. 8, pp. 491–503, (2018). DOI:

. X. Zhang, S. Lin, Z. Chen, M. Megharaj, and R. Naidu, “Kaolinite-supported nanoscale zero-valent iron for removal of Pb2+ from aqueous solution: Reactivity, characterization and mechanism,” Water Res., vol. 45, no. 11, pp. 3481–3488, (2011), doi: DOI:

. N. M. Phạm Thị, B. Lê Thái, Đ. Phạm Huy, T. N. Nguyễn Thị, Đ. Phạm Tiến, and Á. H. Nguyễn Thị, “Xác định hàm lượng Polyphenol và EGCG trong chè và sản phẩm chè bằng phương pháp UV-VIS và HPLC,” Heavy metals and arsenic concentrations in water, agricultural soil, and rice in Ngan Son district, Bac Kan province, Vietnam, vol. 1, no. 1. pp. 8–12, (2018). doi: 10.47866/2615-9252/vjfc.692. DOI:

. B. Desalegn, M. Megharaj, Z. Chen, and R. Naidu, “Green synthesis of zero valent iron nanoparticle using mango peel extract and surface characterization using XPS and GC-MS,” Heliyon, vol. 5, no. 5, p. e01750, (2019), doi: 10.1016/j.heliyon.2019.e01750. DOI:

. A. Soliemanzadeh, M. Fekri, S. Bakhtiary, and M. H. Mehrizi, “Biosynthesis of iron nanoparticles and their application in removing phosphorus from aqueous solutions,” Chemistry and Ecology, vol. 32, no. 3. pp. 286–300, (2016). doi: 10.1080/02757540.2016.1139091. DOI:



How to Cite

Lê, M., Tô Phương Linh, Nguyễn Thị Thu Hương, Nguyễn Quang Lý, and Nguyễn Trung Đức. “Green Synthesis of Bimetallic Nanoparticles from Green Tea Leaf Extract”. Journal of Military Science and Technology, vol. 85, Feb. 2023, pp. 65-72, doi:10.54939/1859-1043.j.mst.85.2023.65-72.



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