Cintia Agtasia Putri, Ian Yulianti, Ika Desianna, Anisa Sholihah, S. Sujarwata
Water hyacinth (Eichornia crassipes) is a weed in aquatic area whose trunk contains a lot of cellulose. Cellulose contained can be used as dyes adsorbent in a form of composite membrane. This study aims to investigate the capacity of water hyacinth cellulose-based membrane to adsorb dye and Chromium (Cr) contained in liquid. The process of membrane fabrication begins with isolation of water hyacinth cellulose. The isolated cellulose powder was used to make the membrane by mixing it with polyvinyl alcohol-polyethylene glycol (PVA-PEG) with various compositions. The morphology of membrane surface was analyzed using CCD microscope. The analysis using Ultraviolet Visible Spectroscopy (UV-Vis) and Atomic Absorption Spectroscopy (AAS) indicate that the membrane with composition ratio of cellulose: PVA: PEG of 6.5: 2.5: 1 adsorb Cr up to 38.75%. © Published under licence by IOP Publishing Ltd.
Physics Education Postgraduate Program Universitas Negeri Semarang, Semarang, Indonesia; Department of Physics Education, Universitas Negeri Semarang, Semarang-Central-Java, 50229, Indonesia
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