Green-synthesized zeolite Y-supported zero-valent iron nanocomposite for enhanced adsorptive reduction of hexavalent chromium from aqueous solutions

Indonesia’s growing leather industry relies heavily on chrome tanning, a process that yields high-quality products but leaves 30–40% of the applied chromium as hazardous wastewater. Although trivalent chromium (Cr(III)) is relatively stable, environmental factors and oxidizing agents can convert it into hexavalent chromium (Cr(VI)). Unlike its trivalent counterpart, Cr(VI) is highly soluble, mobile, and extremely […]