Preparation And Characterization of A Biosorbent From Datura Stramonium Root (Atefaris) For The Removal of Malachite Green From Aqueous Solutions

Malachite green, a widespread, persistent contaminant in trash and the environment that poses serious risks to aquatic life and human health, is utilized in the textile and dyeing industries. As a result, biosorbent made from plants is thought to be the most effective way to remove malachite green from aqueous solutions. It is built using plant matter or sustainable raw materials through a chemical activation method. Still, testing how well this natural filter pulls out malachite green mattered deeply for clean water and natures balance. The majority of academics are currently interested in removing malachite green from water because of its characteristics. One of the best techniques for influencing the availability, transformation, and bioavailability of malachite green is adsorption. The characterization findings demonstrated that the biosorbent had the largest macro porous surface area and a welldeveloped surface area for adsorption. Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X- ray diffraction (XRD) spectroscopy were used to examine the surface functional group, morphology, and crystallinity. The results of batch experiments showed that a number of factors, including pH, dose, contact time, temperature, and initial MG concentration, affect the adsorption of malachite green by a biosorbent produced from Datura stramonium roots. The ideal dose of 1g, pH of 8, starting malachite green concentration of 20 ppm, contact period of 30 minutes, and temperature of 30oC were noted. The Langmuir model with maximal adsorption capacity of 25.77 mg.g-1 had the best fit to the adsorption data (R2 = 0.996) according to the isothermal analysis, while the kinetic data supported the pseudo-second order model with an optimally suited R2 coefficient of 0.887 for malachite green. Lastly, the findings indicate that the removal of organic dye pollution from aqueous solution using a biosorbent generated from Datura Stramonium roots may be economically feasible. From the results, it is evident to expect that Datura Stramonium biosorbent will show comparable adsorption behaviors for the removal of various coloring agents from aqueous solutions, even if the experiment is limited to malachite green.