Green synthesis of transition metal-based mixed-phase materials from Convolvulus arvensis leaves: structural, cyclic voltammetry and photocatalytic studies

Convolvulus arvensis leaf extract, rich in phytochemical constituents, was employed as a green complexing and stabilizing agent to facilitate the synthesis of Mn 2 O 3 (1), Cu 2 (OH) 2 CO 3 (2), Fe 2 O 3 (3), and Ni 2 CO 3 (OH) 2 ·H 2 O (4).