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Xinsheng Luo,Ziqiang Lei,Pengxin Zhou,Yani Liu,Guofu Maa,Zhe Zhang 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.27 No.-
A novel synergic adsorption process of acid blue 80 dye (AB80) and heavy metal ions (Cu2+ or Ni2+) on alow-cost activated carbon (PRAC) which was prepared from potato residue was reported. The resultsindicated that the maximum adsorption capacity of PRAC for AB80 and Cu2+ were 294.7 mg/g and45.0 mg/g in the AB80-Cu2+ system, respectively. In the mono-component system, the values were173.0 mg/g and 26.8 mg/g, respectively. Compared with mono-component system, the AB80 and Cu2+showed good synergistic effect on PRAC. The similarly result was revealed in the AB80-Ni2+ system. For abinary system, the adsorption isotherm of AB80 and heavy metal ions followed the non-modified Sipsmodel, and the adsorption kinetic models followed the pseudo-second order kinetic model. The effect ofpH also was discussed, and showed significant role in the binary-component system adsorption. Theselectivity in synergic adsorption was discussed. BET, FE-SEM/EDX and XPS were used to characterizePRAC with and without adsorbed dye and heavy metal ions, possible mechanisms of AB80 and heavymetal ions synergic adsorption process were proposed.
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