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Abstract:
A new nanostructured amino-functionalized magnetic bacterial cellulose/activated carbon (BC/AC) composite bioadsorbent (AMBCAC) was prepared for removal of Pb2+ and methyl orange (MO) from aqueous solution. The results demonstrated that the equilibrium adsorption capacity (qe) for Pb2+ obviously increases by 2.14 times after introduction of amino groups, the optimum pH for Pb2+ and MO adsorption was 5.0 and 3.0, respectively, and the qe of AMBCAC was 161.78 mg g−1 for Pb2+ and 83.26 mg g−1 for MO under the optimal conditions in this investigation. The kinetics and adsorption isotherm data of the sorption process were well fitted by pseudo-second-order kinetic model and Langmuir isotherm respectively. The thermodynamic results (the Gibbs free energy change ΔG 0, the entropy change ΔS > 0) implied that the adsorption process of Pb2+ and MO was feasible, endothermic and spontaneous in nature. These results support that the AMBCAC composite developed in this work can provide a cheap and efficient way for easy removal of both Pb2+ and MO as a promising adsorbent candidate for wastewater treatment. © 2017
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Journal of Materials Science and Technology
ISSN: 1005-0302
Year: 2018
Issue: 5
Volume: 34
Page: 855-863
5 . 0 4
JCR@2018
1 1 . 2 0 0
JCR@2023
ESI HC Threshold:284
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
SCOPUS Cited Count: 81
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
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