Karakteristik Nanopartikel C,N,F untuk Material Pembersih Air Limbah Logam Berat Cu dan Cr

Abstract

Magnetic nanoparticle material has been synthesized using the coprecipitation method. The preparation process begins by mixing iron sand powder with 32% HCl solvent. After that the solution was added with CoCl2, NiCl2, and dripped into the NaOH precipitating solution (100 ml). The precipitate is washed using distilled water until the pH is normal. The resulting precipitate is dried in an oven for 48 hours at T= 80℃, after which the solid is ground using an agar mortar in the form of powder and calcined for 2 hours at T=700℃. In order to know the crystal structure, magnetic properties, morphology, adsorption capacity, characterization was carried out using X-Ray Difraction (XRD), Vibrating Sample Magnetometer (VSM), Field Emission Scanning Electron Microscopes (FE-SEM), and Atomic Absorption Spectrophotometer (AAS). The XRD analysis results obtained the phase which crystallized quite well with a cubic crystal structure. VSM analysis results are hard magnetic with a coercivity of 621.35 Oe. The FE-SEM results obtained a clean morphology with an average particle size of around 24.16 nm. The results of the AAS analysis showed that the adsorption capacity of nanoparticles was 11.23 mg/g with 99.86% efficiency