Effects of Fe(II) on Cd(II) immobilization by Mn(III)-rich δ-MnO 2 - Sun, Qian; Cui, Pei-Xin; Fan, Ting-Ting; Wu, Song; Zhu, Mengqiang; Alves, Marcelo Eduardo; Zhou, Dong-Mei; Wang, Yu-Jun (Chemical Engineering Journal, 2018)