Evaluation of Pb (II) Removal by Tea Pulp Modified with Magnetite Nanoparticle

Tea waste was used to successfully synthesize magnetic nanoparticles (TWMNPs). In this investigation, Pb (II) eliminated by tea modified with magnetite (TWMNPs) investigated. To prepare the TWMNPs, FeCl3.6H2O dissolved in double distilled water (DDW) and 20 g of pulp added slowly stirred, after 30 min TWMNPs adsorbent were separated through an external field washed three times ethanol then dried at 60°C. The FESEM test shows particle size range 15–20 nm spherical/cuboid-shaped crystal structure Fe3O4 (magnetite). X-ray analysis showed that main XRD diffraction peaks are related Fe3O4, HighScore plus X’Pert software identify phase sample. specific surface area prepared 25.2 m2.g−1. pore volume, maximum radius, VSM 14.4 cm3.g−1, 2.3 nm, 3.37–2.41, respectively. effects various parameters, such as contact time, pH, concentration, dosage, studied. experimental isotherm data analyzed using Langmuir Freundlich models, it found removal process followed adsorption capacity calculated fitting 10.67 mg.g−1. addition, kinetics first-order kinetic model value rate constant be 14.04 × 10−2 min−1. results increasing pH level led a rise response removal. Also, trend had increase initial concentration (II). Increasing time from 5 minutes has slight effect on Considering results, could lead suitable for wastewater containing metal. And