Nitrogen doping-enhanced Mott–Schottky effect in ZIF-67-derived catalysts for efficient and rapid Cr(VI) reduction - Tran Doan Trang; Ta Cong Khiem; Nguyen Nhat Huy; Suresh Ghotekar; Wei-Hsin Chen; Yiu Fai Tsang; Chia-Hua Lin; Duong Dinh Tuan; Kun-Yi Andrew Lin (Journal of Environmental Chemical Engineering, 2026)