Figure 1 (IMAGE)

Tohoku University

Figure 1

Caption

Conceptual illustration of anionic dye adsorption using the imidazole-linked, highly connected three-dimensional COF TU-123. Owing to protonation of the imidazole nitrogen sites, TU-123 exhibits a positively charged (cationic) surface under neutral aqueous conditions, which enables strong electrostatic attraction toward negatively charged (anionic) dye molecules such as Acid Orange 7, thereby facilitating their efficient capture from wastewater. 

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©Yuichi Negishi et al.

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