Mangifera indica gum-mediated sol-gel synthesis of ZnO photocatalysts with tunable structure and controlled defect distribution for efficient metronidazole degradation. - Arruda JM; Lins A; Albuquerque WA; Rocha MC; Pacheco JGA; Trigueiro P; Peña-Garcia RR (International journal of biological macromolecules, 2026)