Correction: Kong et al. Preparation of Poly Aluminum-Ferric Chloride (PAFC) Coagulant by Extracting Aluminum and Iron Ions from High Iron Content Coal Gangue. Materials 2022, 15, 2253
1 Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui 553004, China.
2 School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221016, China.