Fig. 5: Adsorption and photocatalysis of uranium. | Nature Communications

Fig. 5: Adsorption and photocatalysis of uranium.

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

Fig. 5

a Under visible light irradiation, the uranium adsorption capacity of PyN-DAB at pH 1.0–5.0. b The adsorption isotherm of UO22+ on PyN-DAB under dark and light irradiation (pH 4.0), the dotted lines are the fitting curve of Langmuir model. c The UO22+ adsorption kinetics on PyN-DAB under dark and light irradiation (pH 4.0). d The uranium removal rate of PyN-DAB in the presence of competitive cations (initial concentrations are 50 ppm), mixed solution, simulated solutions and four uranium mine wastewater samples. Error bars represent S.D. n = 3 independent experiments.

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