A review of heterogeneous peroxymonosulfate activation for levofloxacin removal: Bridging pathway analysis and d-band theory for efficient catalyst design - Ruizhi Ren; Jiaqi Guo; Yuansheng Zhang; Guohong Feng; Shaoqing Guo; Jiandong Guo; Bingzheng Li (Environmental Research, 2026)