H2O2 generation for water purification induced by trace peroxymonosulfate on surface of Ca-C biochar converted from pigeon manure - Jiemei Liu; Wenrui Cao; Shaoqian Liu; Yingtao Sun; Lishen Mao; Xi Chen; Yanfen Fang; Chun Hu; Lai Lyu (Journal of Environmental Chemical Engineering, 2025)