Nurdin Bukit, Eva M. Ginting, Eveb A. Hutagalung, Elfariska Sidebang, Erna Frida, Bunga F. Bukit
This study aims to determine the characteristics of oil palm boiler ash (OPBA) after processing with ball mill and coprecipitation methods. The method used is OPBA from a palm oil mill, processed using a ball mill for 1 hour at a speed of 250 rpm. Then prepared with the coprecipitation method by dissolving it in 2M HCl solution and NaOH solution with variations (2; 2.5; 3) M. Particles were characterized by XRD, SEM, XRF, and FTIR. XRD characterization shows the size of each crystal (83,79; 72,30 and 56,31) nm, with trigonal crystal structure with the SiO2 phase. SEM shows a homogeneous mixture. EDX shows the biggest elements are Si, O and C content. XRF shows the amount of silica is 31.45%. FTIR shows absorption peaks which are the characters of molecular vibrations of the sample. © 2019 Nurdin Bukit et al., published by De Gruyter Open.
Department of Physics, Universitas Negeri Medan, Indonesia; Faculty of Engineering, Universitas Quality, Indonesia; Department of Physics, Universitas Quality Berastagi, Indonesia
