Figure 5

(A) Low resolution XPS spectra of CNF, CNF/PB and CNF/PB after Cs adsorption; (B) high resolution spectra of C1s shown for CNF and CNF/PB, (C) O1s spectra shown for CNF and CNF/PB, (D) Fe2p of CNF/PB, (E) N1s of CNF/PB and F) Cs3d of CNF/PB after Cs adsorption.