Abstract
The aim of the research was to extract a cellulose from kepok banana peel (Musa parasidiaca L.) and application to removal Procion dye. The extracted cellulose was prepared by dewaxing process to releasing of lignin, bleaching and hemicellulose removal. The cellulose identified by FTIR and SEM-EDS. The efficiency of the cellulose to adsorp Procion dye was evaluated by variation in the initial concentration of dye (5, 10, 15, 20, 25, 30, 35, 40, 45 and 50 mg/L), solution pH (3, 4, 5, 6, 7, 8 and 9), and the contact time (15, 30, 45, 60, 75 and 90 minutes) at room temperature. The result showed that FTIR spectra of cellulose from kepok banana peel were similar with FTIR spectra of standardcellulose. The morphology of cellulose more homogenous than kepok banana peel powder. It was observed that the optimum adsorption of Procion dye by cellulose was on the initial concentration of 30 mg/L, pH solution of 5 and contact time within 30 minutes. The obtained result that cellulose has removal percentage to adsorp Procion dye more higher than kepok banana peel powder. The adsorption equilibrium showed the Langmuir isotherm was described well for adsorption process (R2 = 0.991) than Freundlich isotherm (R2 = 0.922).
Highlights
Bananas is tropical fruits that the most widely produced and used by the community Indonesian
Batch studies used to obtain the adsorption of cellulose for Procion dye solution with parameters include initial concentration of dye, pH of solution and contact time
SEM images of the surface of kepok banana peel powder and cellulose extracted from kepok banana peelare show in Figure 2 at a 10.000 magnification
Summary
Bananas is tropical fruits that the most widely produced and used by the community Indonesian. Whereas waste of kepok banana peel containing polymers such as lignin, cellulose, hemicellulose and pectin (Klemm, Schmauder, & Heinze, 2006). Many studies used of cellulose as adsorbent to adsorp pollutant in waste water. Hejeeth (2013) extracting cellulose from sisal fiber for adsorption of Cr(VI). From aqueous solution with adsorption capacity is 280.04 mg/L. Mohadi, Nurlisa, Adi, and Aldes (2013) extracting cellulose from wood sawdust to adsorp Co2+ with adsorption capacity is 0.55.10-4 mol/g. Cellulose extracted from kepok banana (Musa parasidiaca L.) peel performed several stages of dewaxing, bleaching to release of lignin and hemicellulose removal. The dewaxing process is done by maceration using ethanol/toluena (1:1). The last process is the removal of hemicellulose using sodium hydroxide solution. The equilibrium adsorption experiments were obtained fitted to Langmuir and Freundlich adsorption isotherm
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