Recovery of cesium from residual salt lake brine in Qarham playa of Qaidam Basin with prussian blue functionalized graphene/carbon fibers composite

Add time:08/10/2019    Source:sciencedirect.com

Both amination graphene and carbon fibers were cross-linked together using glutaraldehyde as composite support, then, prussian blue was electrodeposited at the surface (PB/GNs/CFs). The characterization of PB/GNs/CFs by field emission scanning electron microscopy, X-ray diffraction, fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and electrochemical techniques confirmed the correct modification. Number of cubic prussian blue particles were uniformly coated at the surface with an average size of 19.32 nm. Selective adsorption and desorption of cesium (Cs+) were investigated at PB/GNs/CFs in aqueous solution, respectively. At the optimum conditions, PB/GNs/CFs could be used to the recovery of Cs+ from the residual of salt lake brine which potassium was removed in Qarham playa of Qaidam Basin.

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