“…This research aims to achieve at least two objectives: first, to create potential adsorbent materials for organic dye adsorption from lowcost agricultural waste available in nature, and second, to contribute to reducing environmental pollution caused by these waste products. Currently, many studies have been published on the use of agricultural waste as a precursor for synthesizing adsorbent materials for organic dyes adsorption, such as orange peels, 2,3 grapefruit peel, [4][5][6][7] coffee grounds, [8][9][10] banana peels, [11][12][13][14][15] corn waste, [16][17][18][19][20] peanut shells, [21][22][23] durian waste, [24][25][26][27] dragon fruit peels, [28][29][30] etc. Dragon fruit peels have been attracting attention for synthesizing adsorbent materials for organic dyes adsorption due to the presence of compounds such as phenolic compounds, betalains, betacyanins, and other functional groups like C═C, C═O, OH, and NH.…”