Unravelling the synergistic effects in GdCe composite oxides supported biochar catalysts for formaldehyde elimination: Elevated performance and SO2 toleration

• Published in: Journal of environmental sciences (China) Vol. 152; pp. 594 - 610
• Main Authors: Jiang, Yun, Gao, Lei, Dai, Jianyong, Li, Caiting, Xiong, Huiyu, Li, Yeling, Liu, Zhichao, Wang, Wenjun, Hu, Junhao
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2025
• Subjects: active oxygen species; biochar; carbon dioxide; catalytic activity; Catalytic oxidation; corn straw; crystallization; Formaldehyde; formates; Gd[sbnd]Ce oxides; Hierarchical porous biochar; mass transfer; sewage sludge; species; surface area; synergism; temperature; GdCe oxides; Catalytic oxidation; Hierarchical porous biochar; Formaldehyde

•GdCe bimetallic catalyst exhibited superior performance and SO2 toleration than those of corresponding monometallic catalyst.•The synergistic effect between GdOx and CeOx in 10%Gd0.25Ce0.75/MPB boosted oxygen vacancies formation and active oxygen evolution.•Effects of flue gas components were explo...