Preparation and Characterization of Nanocrystalline Cellulose from Cladophora sp. Algae

Nanomaterial is one of the recent technological advancements that attracts attention many scientists. Many advanced properties could emerge from utilization materials on this scale. Nanocrystalline cellulose (NCC) a cellulose-based nanomaterial currently gaining because its remarkable properties. NCC was prepared by removing amorphous part through acid hydrolysis. Cladophora type algae with fiber-like body, grow rapidly and widely available in Indonesian coastal area, which considered nuisance has no known high economic value. can be used as an alternative source it amount cellulose. Cellulose extracted using 17.5% NaOH at 100°C, 1 M sulfuric hydrolysis bleaching 5% hydrogen peroxide 100°C. concentration 2 M, 3 5 M. The duration process for each concentration, varied 5, 10, 15 hours. X-Ray Diffraction (XRD), Particle Size Analyzer (PSA), Transmission Electron Microscopy (TEM), Fourier Transform Infrared (FTIR) spectroscopy were to characterize resulting hydrolyzed product. result showed increase processing increased crystallinity while decreased particle length diameter. highest smallest size 96.36% 189.2 nm, obtained