Abstract:
Many environmental organizations have drawn attention to the global issue of waste entering the environment. Numerous businesses, such as those in the textile, pharmaceutical, culinary, beverage, cosmetic, paint, and leather sectors, pollute water bodies with colored effluents. One of the colors commonly used in textile manufacturing is malachite green. Numerous methods for removing dyes have been proposed in studies. However, due to their inadequacies, not all dye removal methods are worth using. In this context, adsorption is thought to be a readily accessible approach. Utilizing waste materials as a foundation for bio char production is a relatively young industry. Because it reduces waste content and provides a workable method for producing the required adsorbents. In the current work, the Aerva javanica plant successfully removes the Malachite green dye from aqueous media. It was crushed into tiny pieces and allowed to dry completely in the sun for a week before being ground using the mortar and pestle to grind it to a finely ground powder. The bio char was obtained by the pyrolysis of Aerva javanica fine powder at 650oC for 3-4 hours. The loading of Al and Cu nanoparticles on some amount of bio char was done and then dried overnight at 60oC in an oven. These adsorbents efficiently remove the dye. The parameters optimizing technique identified the best parameters for figuring out a particular material's adsorption potential. Using Aerva javanica plant bio char at optimal conditions (pH = 11, dye concentration of 100 ppm, 30 minutes, 0.5 g adsorbent dose, and 20°C), nearly 93% of the Malachite green dye is removed. While using Al-Cu@ bio char nanocomposites99% of the dye is mitigated using 0.5g Nano composites loaded adsorbent at pH= 11, 30 minutes, 80 ppm, and 20°C. Based on the adsorption studies, the linear Langmuir isotherm proved to be the most suitable fit for the results of the experiments. The kinetic studies indicate that the mechanism is second order. Furthermore, the adsorption process was exothermic and spontaneous between293 and 333 K. The FTIR measurements revealed that the adsorbent's surface contains carboxyl and hydroxyl functional groups. According to the SEM data,simple bio char and Al-Cu@ bio char had a porous surface that effectively adsorbed the dye molecules. The correct amount of loaded Al and Cu on bio char was confirmed by the EDX analysis. The zeta sizer was used to find the size and potential of both adsorbents. The ideal conditions needed for adsorption were determined through RSM.
Page(s):
73-73
DOI:
DOI not available
Published:
Journal: 1st International Conference on "Recent Advances in Green Biotechnology and Climate Resilience", September 15-16, 2025, Volume: 1, Issue: 1, Year: 2025