Fig. 2: Structural characterizations.

a PXRD result of g-CN-U, g-CN-DCDA, K-PHI. b FT-IR spectra of g-CN-U, g-CN-DCDA, K-PHI. c Raman spectra of g-CN-U, g-CN-DCDA, K-PHI. d Photocatalytic activities under the different photocatalysts: 1a (0.1 mmol), NaOH (1.5 equiv.), catalyst (5 mg), CHCl3 (2 mL), 3 W 420 nm LED, under N2 at room temperature for 8 h. Yields determined by 1H NMR using benzyl ether as an internal standard.