Fe/N co-doped magnetic porous hydrochar for chromium(VI) removal in water: Adsorption performance and mechanism investigation - Jianhua Qu; Shuai Shi; Yuhui Li; Ruixin Liu; Qi Hu; Yupeng Zhang; Yifan Wang; Yunqiao Ma; Xiaoyu Hao; Ying Zhang (Bioresource Technology, 2024)