Preparation of activated red mud and its application for removal of hydrogen sulfide in air - Hien, Lam Pham Thanh; Huy, Le Truong Anh; Thanh, Pham Dan; Thi, Le Thi Kieu; Le, Bui Khanh; Khoa, Le Nguyen Dang; Vinh, Doan Quoc; Vi, Tran Dinh; Hai, Pham Hong; Thuy, Vo Thi Thanh; Huy, Nguyen Nhat (VNUHCM Journal of Engineering and Technology, 2019)