Green Aeonium Arboreum-Synthesis of Nickel Nanoparticles for Efficient Removal of Paracetamol From Water

This study offers a green methodology for synthesis of nickel nanoparticles (Ni NPs) employing Aeonium Arboreum (A. arboreum) extract and the removal of paracetamol from aqueous solution. This methodology was optimized by varying key parameters, achieving 0.5 M nickel chloride, a 1:4 extract-to-metal ratio, pH 12, 48 h reaction time, and 40°C as the optimal condition for stable Ni NPs. The stability and properties of the nanoparticles are confirmed by employing different characterization instruments including UV-vis spectrophotometry, Fourier transform infrared spectroscopy, scanning electron microscope-energy dispersive x-ray, dynamic light scattering analysis x-ray diffraction, and zeta potential. The synthesized Ni NPs demonstrated significant potential for paracetamol removal, achieving highest removal of 53.5%, corresponding to an adsorption capacity (q_e) of 8.56 mg g^{- 1}, from aqueous solutions under optimized conditions (75 mg Ni NPs, 40 ppm paracetamol, pH 12, and 90 min contact time). The adsorption behavior indicated strong interactions among Ni NPs and paracetamol, enhancing their potential in water treatment applications. This methodology demonstrates the applications of green synthesized Ni NPs for sustainable environmental remediation aligned with the sustainable development goals.