Research Article
The Effect of Temperatures on the Synergistic Effect between a Magnetic Field and Functionalized Graphene Oxide-Carbon Nanotube Composite for Pb2+ and Phenol Adsorption
Figure 9
XPS spectra: before and after adsorption of NH2-SH-GO/o-MWCNTs: (a) full spectrum of NH2-SH-Fe3O4/o-MWCNTs; (b) Pb4f after adsorption; (c) C1S before adsorption; (d) C1S after adsorption; (e) S2p before adsorption; (f) S2p after adsorption; (g) N1s before adsorption; (h) N1s after adsorption.
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