Fig. 6: The interactional mechanism between PyN-DAB and uranium. | Nature Communications

Fig. 6: The interactional mechanism between PyN-DAB and uranium.

From: Synthesis of propenone-linked covalent organic frameworks via Claisen-Schmidt reaction for photocatalytic removal of uranium

Fig. 6

a XPS survey spectra of PyN-DAB measured before and after loaded with uranium in the dark or visible light irradiation. b High-resolution XPS spectra of O 1s for PyN-DAB. c U 4f high-resolution spectra of PyN-DAB loaded with uranium in the dark or visible light irradiation. d EPR spectra of PyN-DAB loaded with uranium in the dark or visible light irradiation. e Corresponding electrostatic surface potential distribution of N. f The optimized structures for the complexing state of uranium with N.

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