Profile of the Adsorption Ability of Sulfonate-Modified Lignocellulose Based on Bagasse Waste to Some Batik Textile Dyes

Abstract

The presence of synthetic dye contamination produced from the batik industry encourages research to overcome it through the adsorption method using a smart adsorbent, in this case an adsorbent that has several active groups. This study aims to examine the adsorbent of lignocellulose sulfonate based on bagasse waste for some textile dyes used in the batik industry. The synthesis of lignocellulose sulfonate was carried out through several steps such as extraction and activation using Na2SO3 and NaHCO3. The resulting products were then characterized using FTIR and SEM apparatures and applied them as an adsorbent for Remazol Red RB and Indanthrene Blue RS dyes. The adsorption test was carried out using bagasse, lignocellulose, and lignocellulose sulfonate adsorbents at a solution concentration of 50 ppm with variations in contact time of 5, 10, 20, 40, 80, and 160 minutes. The remaining dye content in the solution was then tested using a UV-Vis Spectrophotometer. From the experimental results, it is known that lignocellulose sulfonate, lignocellulose, and bagasse are able to absorb Remazol Red RB dye, respectively, by 84.41%, 63.87% and 61.52%. While for Indanthrene Blue RS dye, the largest absorption was found in lignocellulose sulfonate adsorbents of 56.35%, lignocellulose 50.72%, and baggase 45.93%. The highest adsorption capacity was found in the lignocellulosic sulfonate adsorbent, namely 42.2081 ppm for Remazol Red RB adsorption and 28.1771 ppm for Indanthrene Blue RS dye.