Adsorption of Dye Stuff using Cellulose Extracted from Para Grass (Brachiaria Mutica)

Abstract

The purpose of this research was to study the factors affecting the dye adsorption efficiency of cellulose extracted from the Para Grass (Brachiaria Mutica), such as the amount of cellulose and dye concentration. In this test, spend a total time of 1 hour, the results of the experiment were collected 4 times, i.e., at 15 minutes, 30 minutes, 45 minutes and 60 minutes by using cellulose powder from Para Grass at 1 and 1.5 grams. The concentration of dyes used for three concentrations was 10 ppm, 20 ppm and 30 ppm. It was found that the cellulose extracted from the Para Grass could absorb the dye, both crystal violet (CV) and methylene blue (MB). The percentage of absorption up to 90 – 98 %, which has a very good performance. When the absorption time increases, increasing the efficiency of absorbing waste water from cellulose dyes. For the adsorption efficiency of the dye from CV and MB at the concentration of 10 ppm, it was found that the adsorption concentration was the best. The percentage of adsorption efficiency of CV is 94.96 % and the percentage of adsorption efficiency of MB is 99.43 %. When inspect the function group and chemical structure of cellulose extracted from Para Grass by FTIR technique, found that the wave numbers of absorption are 1245 cm^-1, 1052.25 cm^-1 and 890 - 900 cm^-1.