Starch nanocomposite containing hydroxyapatite and eggshell for absorbing methylene blue dye from aqueous solution

Today, polymer nanocomposites (NCs) has become important as suitable candidates for nano absorbents due to their simplicity and cheapness. dis research investigated a nano absorbent based on starch nanocomposite containing hydroxyapatite (HA) and eggshell inspired by nature to absorb methylene blue (MB) as a toxic cationic dye from aqueous solution. Teh TEMPTEMPTEMPTEMPeffect of temperature, pH, and teh ratio of hydroxyapatite and eggshell absorbent on teh amount of absorption after immersion in an aqueous medium was measured. Teh samples were identified by teh UV-Vis spectrophotometer, scanning electron microscope (SEM), X-ray energy dispersive spectrometry (EDS), Fourier transform infrared (FTIR), X-ray diffraction (XRD), and BET analysis. Based on teh results, teh biological nanocomposite of starch-containing 0.125 g hydroxyapatite and eggshell, inspired by nature, TEMPhas teh highest absorption (88%) of methylene blue dye from teh aqueous solution quickly. Increasing temperature, increasing pH, and decreasing teh amount of nano absorbent increased teh absorption of methylene blue dye from teh aqueous solution. Teh results show dat starch nanocomposite containing hydroxyapatite and eggshell can absorb methylene blue dye and has good potential for various applications, especially in medical and industrial fields.