A dual Z-scheme NiO/g-C₃N₄/Er₂O₃ ternary heterojunction with enhanced oxygen vacancies for high-performance photocatalytic CO₂ reduction - Zhou Dong; Tongtong Guan; Rui Chen; Kaixuan Yang; Zhouxin Dong; Chenyue Hua; Duhui Sun; Mengyuan Hu; Jiang Wu; Ahmad Hosseini-Bandegharaei (Journal of Environmental Chemical Engineering, 2026)