Abstract
Research of application of cogon grass (Imperata cylindrica (L.) Raeush) for adsorption of Remazol Yellow FG dye was carried out. This experiment was done to get the optimal condition of adsorption of Remazol Yellow FG dye by cogon grass. Adsorption process was performed by variety soaking activation times of cogon grass in NaOH solution were in 0, 6, 12, 18, 24, 30, and 48 hours. The pH variation was 9, 10, 11, 12, and 13. The variation of contact times at 0, 20, 40, 60, 80, 100, and 120 minutes. The interactions between Remazol Yellow FG dye in solution and cogon grass were conducted in batch method. The surface area characteristic of cogon grass was analyzed by methylene blue method and the functional groups in the cogon grass were analyzed by infra red spectroscopy. The analysis of adsorption of textile dye was by Ultraviolet-Visible Spectroscopy. The results showed that the optimum condition from adsorption process of Remazol Yellow FG dye by cogon grass was reached at 24 hours of activation times, pH 10, and 60 minutes of contact time. Adsorptive capacity of active cogon grass to the textile dye was 5.165 mg/g while to the textile dye waste was 7.851 mg/g.
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