Study on the Competitive Adsorption of Pb (II) and Ni (II) in Aqueous Solution Onto B-nZVI and Its Stability After Adsorption

Attapulgite-Supported Nanoscale Zero-Valent Iron Composite Materials for the Enhanced Removal of Ni2+ from Aqueous Solutions: Characterization, Kinetics, and Mechanism

“…The correlation coefficient of then PSO kinetics was 0.9729, significantly exceeding that of the quasi-primary kinetics. In comparison, the equilibrium adsorption capacity obtained by fitting the quasi-secondary kinetic model was 144.9593 mg/g, which is comparable with the actual adsorption capacity of 143.8667 mg/g, indicating that quasi-secondary kinetics can better describe the adsorption of Ni 2+ by composites and that the adsorption rate is mainly chemisorption [30][31][32][33]. To gain a clearer understanding of the adsorption performance of nZVI@ATP, we compared its adsorption efficiency with that of other materials for Ni 2+ .…”

Environmental remediation approaches by nanoscale zero valent iron (nZVI) based on its reductivity: a review

“…Remedial efforts employing nZVI via reduction have been performed on 1,2-dichloroethylene (DCE), 28 trichloroethylene (TCE), [29][30][31][32] perchloroethylene (PCE), 28 1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane (DDT), 33 2,4-dichlorophenol (2,4-DCP), [34][35][36][37] trichloronitromethane (TCNM), 38 1,2,4-trichlorobenzene (1,2,4-TCB), 39 2,4,6-trichlorophenol (TCP), 40,41 2chlorobiphenyl (PCB1), 42,43 diclofenac (DCF), 44 chlorinated organophosphate esters (Cl-OPEs), 45 2,2 0 ,4,4 0 -tetrabromodiphenyl ether (BDE-47), 46,47 tetrabromobisphenol A (TBBPA), 48,49 methylene blue, 50 p-nitrophenol, 51,52 nitrobenzene, 53,54 mono-brominated diphenyl ether (BDE-3), 55 Cr(VI), [56][57][58][59][60][61] Sb(V), 62 Ni(II), [63][64][65][66] Pb(II), 65,67 Cu(II), 68 As(V), 69 U(VI), 23,[70][71]...…”

“…Cai et al identified that Pb( ii ) and Ni( ii ) will compete the limited effective adsorption/reaction sites in binary mixtures, and Pb( ii ) owns greater competitive ability than Ni( ii ). 65 Liu et al modified nZVI/rGO with xanthan gum to fabricate a stable reaction zone, for the breaking of the negative synergistic phenomenon between NO 3 − and Cr( vi ). 105 …”