Anti-Bacterial and Seed Germination Potential of Bimetallic Na-Ni Diamond Crystal Nanoparticles for Wastewater Treatment

Hydrothermal synthesis stands out as a highly effective method for creating nanostructures due to its eco-friendly and straightforward process. In this study, we successfully produced sodium nitrate and nickel(II) chloride nanoparticles using hydrothermal methods. Sodium nitrate (NaNO[Formula: see text] and nickel(II) chloride hexahydrate (NiCl 2 ⋅6H 2 O) were synthesized through precise chemical methods. The resulting samples underwent thorough characterization and analysis using a range of advanced techniques, including UV–visible spectroscopy, microscopic analysis, FTIR, anti-bacterial activity testing, zeta potential measurement and SEM. The UV–visible spectroscopy results confirmed that the synthesized bimetallic Na–Ni nanoparticles possessed a size range of 300–600 nm. FTIR analysis identified the functional groups of the bimetallic Na–Ni nanoparticles, with peaks at 2853.016, 2080.025, 1607.706, 1363.261 and 834.847 cm[Formula: see text], corresponding to C–H stretching, C[Formula: see text]O stretching, N–H bending, O–H bending and C–H bending. Anti-bacterial activity tests demonstrated the effectiveness of the synthesized bimetallic Na–Ni nanoparticles against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa) bacterial strains. Additionally, the study decisively showcased the capabilities of these bimetallic nanoparticles in dye degradation. Our findings revealed that these bimetallic nanoparticles can efficiently remove pollutants from highly contaminated water, rendering the treated water suitable for various applications, including agricultural use. Furthermore, we rigorously evaluated their performance as fertilizers. In seed germination experiments, they affirmed their potential in sustainable agriculture.