Hexavalent chromium Cr(VI) is a hazardous metal with severe environmental and health implications. This study examines the removal of Cr(VI) from wastewater using banana peel powder (BPP) as an affordable, environmentally friendly biosorbent. Batch experiments were performed under different conditions, such as pH, contact time, adsorbent dose, and temperature. Extreme structural changes in BPP during adsorption were shown by FTIR analysis, and the process was attributed to functional groups such as OH, CH, aromatic rings, and C-O. The highest clearance efficiency was attained at a dosage of 20 g/L and after 120 min. The results demonstrate that BPP can facilitate long-term remediation of Cr(VI), opening the door for industrial usage.