ADSORPTION ABILITY OF BAGASSE CELLULOSE (Saccharum Officinarum. L) WITH NaOH CONCENTRATION VARIATION ON COPPER (II) IONS
Yudhi Utomo*, Sarah Andini Larasati, Surjani Wonorahardjo
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas
Negeri Malang, Indonesia
*Email: yudhi.utomo.fmipa[at]um.ac.id
Abstract
The Research on characterization and test the ability of the adsorbent made from bagasse cellulose (Saccharum Officinarum. L) has been carried out. The research objective was to determine the effect of delignification on the characterization of bagasse adsorbent in terms of moisture content, ash content, functional group identification and surface morphology. This research also studied the adsorption power of bagasse adsorbent before and after delignification. The study consisted of five stages including the preparation of bagasse biomass as an adsorbent, delignification of bagasse adsorbent with NaOH, Characterization of bagasse adsorbent which included moisture content, ash content, functional group identification and identification of the adsorbent surface, adsorption of copper (II) ions using adsorbents bagasse before and after delignification and analysis of copper (II) ion concentrations after adsorption with Atomic Absorption Spectroscopy (AAS). The results showed that adsorbents bagasse of delignification with NaOH 0.5 M, the water content 8.91 % and ash content 2.47 % had a value below the maximum value of the adsorbent quality requirements according to SNI 06-3730-1995. Identification of the adsorbent surface shows the influence of delignification with NaOH and ultrasonic wave irradiation indicated the presence of cavities on the surface of the bagasse adsorbent. The adsorption power of Cu (II) ions of bagasse pulp adsorbent before delignification was 55.48% and after delignification of 95.17%.
Keywords: adsorption, bagasse, delignification, Cu (II) ions
Topic: Environmental Engineering