Figure 3

High resolution N 1s core level spectra of (a) P-g-C3N4, (b) B-g-C3N4, (c) 1-RPh-g-C3N4, (d) 2-RPh-g-C3N4 heterostructure, whereas (e) is the P 2p core level spectra of 1-RPh-g-C3N4 and (f) 2-RPh-g-C3N4 heterostructure.
High resolution N 1s core level spectra of (a) P-g-C3N4, (b) B-g-C3N4, (c) 1-RPh-g-C3N4, (d) 2-RPh-g-C3N4 heterostructure, whereas (e) is the P 2p core level spectra of 1-RPh-g-C3N4 and (f) 2-RPh-g-C3N4 heterostructure.