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Al(OH)_3 modified nickel slag adsorbent was prepared by sintering technology. The structure of the sample was characterized by BET, XRD, IR, SEM and EDAX. The sample’s adsorption performance of Pb~(2+) and Cu~(2+) from aqueous solution was studied. Results indicated that the adsorbent is a loose and porous mesoporous material. Its surface had mass aluminosilicate, high-activity γ-Al_2O_3 and its p H ranges from 4 to 12 that all have negative charges. The BET surface of the adsorbent is 23.90 m~2/g. Furthermore, its surface contains rich oxygenic functional groups, which could not only provide abundant adsorption sites for Pb~(2+) and Cu~(2+), but also improve the adsorption performance of Pb~(2+) and Cu~(2+) from waste water through the complexation of heavy metal ions. The best p H values selected in the adsorption of Pb~(2+) and Cu~(2+) are 6 and 5, respectively. With the increase of the initial concentration of simulated solution, the adsorption capacities of Pb~(2+) and Cu~(2+) gradually increased but the removal rates showed a downward trend. The competitive adsorption results of Pb~(2+) and Cu~(2+) showed that Pb~(2+) has better preferential adsorption than Cu~(2+).
The structure of the sample was characterized by BET, XRD, IR, SEM and EDAX. The sample’s adsorption performance of Pb ~ (2+) and Cu ~ (2+ Its surface had mass aluminosilicate, high-activity γ-Al_2O_3 and its p H ranges from 4 to 12 that all have negative charges. The BET surface is a loose and porous mesoporous material. of the adsorbent is 23.90 m ~ 2 / g. Which surface contains rich oxygenic functional groups, which could not only provide abundant adsorption sites for Pb ~ (2+) and Cu ~ (2+), but also improve the adsorption performance of Pb 2+ and Cu 2+ from the waste water through the complexation of heavy metal ions. The best p H values selected in the adsorption of Pb 2+ and Cu 2+ are 6 and 5, respectively. With the increase of the initial concentration of simulated solution, the adsorption capacities of Pb ~ (2+) and Cu ~ (2+) gr The competitive adsorption results of Pb ~ (2+) and Cu ~ (2+) showed that Pb ~ (2+) has better preferential adsorption than Cu ~ (2+).