Sustainable dual-functional lignin-Cr/Zn oxide nanocomposite for organic pollutant removal: A Box-Behnken approach.

This study highlights the transformation of lignin, an agricultural byproduct, into a multifunctional material with significant environmental applications. A chromium-doped zinc oxide/lignin nanocomposite (L@CrZnO) was synthesized and characterized to evaluate its dual functionality in organic pollutant removal and antibacterial activity. Methylene blue (MB) was used as a model contaminant to assess photocatalytic performance under varying conditions of dosage (0.