Table 4. UV Parameters for CEX, GO/PEG, and GO/PEG-CEX in Gas and Water Solvent Phases.

	energies (eV)		excitation (λmax)		oscillator strength (f)
species	gas	water	gas	water	gas	water
CEX	5.39	5.38	230.07	230.24	0.39	0.40
GO/PEG	2.07	2.08	599.47	595.31	1.71	1.74
	3.77	3.71	329.07	334.46	1.42	1.45
	4.93	4.54	251.71	273.25	1.09	0.84
GO/PEG-CEX	2.05	2.07	603.32	598.55	1.73	1.70
	3.72	3.77	333.56	329.06	1.29	1.34
	4.92	4.93	252.08	251.39	0.95	1.13