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Abstract：
In this work, new Cu-coated biochar composites for the adsorption of Re(VII) through complexation mechanism was synthesized successfully. The sensitivity of Cu-coated biochars to solution pH decreased greatly and the adsorption capacity was increased by 3-12 times compared with pristine biochar at pH 3-6. The environmental effect factors and mechanisms of Re(VII) adsorption onto Cu-coated biochar composites (Cu-BC) were investigated. The Re(VII) adsorption nicely fits the Redlich-Peterson isotherm model, and the recovery of Re(VII) from acidic solution by Cu-coated biochar composites follows pseudo-second-order kinetics. Besides, the thermodynamic parameters depicted the spontaneous endothermic nature for the adsorption of low concentration Re (VII). These results demonstrate that easily synthetic Cu-coated biochar composites have promising potential for the recovery of low concentration Re(VII) in acidic solution.
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MINERALS ENGINEERING
ISSN： 0892-6875
Year： 2018
Volume： 124
Page： 123-136
3 . 3 1 5
JCR@2018
4 . 9 0 0
JCR@2023
ESI Discipline： GEOSCIENCES;
ESI HC Threshold：153
JCR Journal Grade：1
CAS Journal Grade：2
Cited Count：
WoS CC Cited Count： 30
SCOPUS Cited Count： 37
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 4
