Buhani
University of Lampung, Indonesia
Title: Synthesis of algae-silica hybrid material from Nitzschia sp. biomass through silica coating tehnique with magnetite nanoparticles as Pb(II) ion adsorbent in solution
Biography
Biography: Buhani
Abstract
Synthesis of algae-silica hybrid material from Nitzschia sp. biomass was performed through sol-gel and silica coating with magnetite nanoparticles (MNPs). The material produced of  algae-silica hybrid from Nitzschia sp. algae biomass covered with magnetite nanoparticles (AS-MNPs) was characterized by infrared (IR) spectroscopy to identify the functional groups existed in this material, X-ray diffraction (XRD) to analyze the structure of the material, and scanning electron microscope (SEM) to investigate the surface morphology of the material. Adsorption process on AS-MNPs to Pb(II) ion was carried out by batch method. Adsorption data obtained show that AS-MNPs is able to adsorb Pb(II) ion up to 97% at pH 5 with contact time of 30 minute at temperature of 27 oC.