Fig. 100. Scheme 1. The synthetic process of the TiN/CdS composite sample.

Fig. 1. XRD (a) and survey XPS spectra (b) of CdS, TiN and TC-20; high resolution XPS spectra of Cd 3d (c), S 2p (d), Ti 2p (e) and N 1 s (f) of CdS, TiN and TC-20 sample.

Fig. 2. SEM images of (a) and (b) TiN, (c) CdS; TEM images of (d) CdS and (e) TC-20; HRTEM image (f) of TC-20 and elemental mapping (g).

Fig. 3. Photocatalytic H2 production (a) and (b) of samples; (c) cycle test of photocatalytic H2 production of TC-20; (d) XRD patterns of TC-20 before and after HER.

Fig. 4. Survey XPS spectrum (a) of TC-20; high resolution XPS spectra of Cd 3d (b), S 2p (c), Ti 2p (d) and N 1 s (e) of the recycled TC-20 sample; TEM image (f) of the recycled TC-20 sample.

Fig. 5. TEM images of (a) TiN nanoparticles and (b) 0D/0D CdS/TiN; (c) HRTEM of 0D/0D CdS/TiN; (d) H2 evolution, (e) UV-vis absorption and (f) EIS of 0D/0D CdS/TiN.

Fig. 6. Photocatalytic H2 production performance of the CdS, Pt/CdS and TC-20 under (a) 520 nm, (b) 650 nm and (c) 760 nm light irradiation; (d) AQY of TC-20.

Fig. 7. PC (a) of CdS and TC-20 under 420 nm; PC (b) of TC-20 under 420, 520 and 650 nm light irradiation; EIS plots (c), LSV curves, (d) PL, (e) and transient PL spectra (f) of CdS and TC-20.

Fig. 8. ESR spectra of CdS (a) and TC-20 (b); (c) UV-vis DRS spectra of CdS, TiN and TC-20; (d) bandgap of CdS; Mott-Schottky plots of CdS (e) and TC-20 (f).

Fig. 9. Model structure and WFs of (a) CdS and (b) TiN; (c) schematic illustration of band configuration between CdS and TiN.

Fig. 10. Mechanism of wide spectrum H2 production of CdS/TiN heterojunction.