10.57647/j.ijc.2026.1601.07

Eco-Friendly Fabrication of Ag-Ni Bimetallic Nanocatalyst for Catalytic Reduction of 4-Nitrophenol and Photodegradation of Crystal Violet Dye with Antibacterial Applications

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  • Minakshi N. Bhatu1,
  • Guruprasad R. Malvankar1,
  • Akshay Chavan1,
  • Prajkta P. Baikar1,
  • Dipali S. Raut1,
  • Shubhangi P. Patil*1,
  1. Department of Chemistry, The Institute of Science, 15, Madam Cama Road, Mantralaya, Fort, Mumbai, Maharashtra 400032, India

Published in Issue 2026-03-31

Published Online: 2025-12-01

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Bhatu, M. N., Malvankar, G. R., Chavan, A., Baikar, P. P., Raut, D. S., & Patil, S. P. (2026). Eco-Friendly Fabrication of Ag-Ni Bimetallic Nanocatalyst for Catalytic Reduction of 4-Nitrophenol and Photodegradation of Crystal Violet Dye with Antibacterial Applications. Iranian Journal of Catalysis, 16(1 (March 2026). https://doi.org/10.57647/j.ijc.2026.1601.07
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Abstract

The facile and efficient green method for the synthesis of Ag based bimetallic nanoparticles Ag-Ni is developed by using sprout water extract. The phytochemical present in the sprout water extract assist the reduction of both the metal simultaneously according to their reduction potential and provides the way for seedless, one pot green synthesis. In the present study sprout water was used for the synthesis of Ag, Ni monometallic and bimetallic Ag25Ni75, Ag50Ni50, Ag75Ni25 because synergistic effect of two metal provides enhancement in catalytic properties of bimetallic nanoparticles. The synthesized nanocatalyst were further characterized by UV-visible analysis, XRD, EDX, NTA, TEM. The nanocatalyst is used for the reduction of organic pollutants like degradation of crystal violet dye and 4-nitrophenol. The nanoparticles were investigated for their antibacterial activity against Bacillus subtilis, staphylococcus aureus, Salmonella typhi, Pseudomonas aeruginosa, and Escherichia coli. The Ag25Ni75 shows outstanding performance for the reduction of 4-Nitrophenol. It will reduce 84.69 % of 4- nitrophenol just in 60 second with constant 0.70 min-1. The order of the reaction is pseudo first order. The Ag75Ni25 shows excellent efficiency for the degradation of 66.37% crystal violet dye in 3 hrs following pseudo first order reaction with rate constant 0.007733min-1. The Ag75Ni25 exhibits more zone of inhibition in B. subtilis, S. aureus, S. typhi, P. aeruginosa, and E. coli 15.36 ± 0.28 mm, 15.23 ± 0.15 mm, 15.40 ± 0.20 mm, 15.33± 0.23 mm, 15.40 ± 0.20 mm than monometallic silver and nickel.

Keywords

  • Bimetallic nanoparticles, Green synthesis, Crystal violet dye degradation, Antibacterial activity, Pseudo first order kinetic, Organic pollutants, 4-Nitrophenol reduction
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