ZnCl2-catalyzed hydrothermal carbonization and ZIF-8 functionalization prepared engineered hydrochar for toluene adsorption removal - Yang Xiao; Yucheng Wang; Xuran Fan; Yuzhu Yang; Runqing Wang; Jie Liu; Zhongde Dai; Junfeng Zheng; Lu Yao; Wenju Jiang; Lin Yang (Fuel, 2026)