A Facile and Waste-Free Strategy to Fabricate Pt-C/TiO₂ Microspheres: Enhanced Photocatalytic Performance for Hydrogen Evolution

Table 1

Crystal sizes, absorption edges, and band gap energies of the synthesized samples.

Sample	P25	C/TiO2	0.1 wt% Pt-C/TiO2	0.4 wt% Pt-C/TiO2	0.6 wt% Pt-C/TiO2
𝐷TiO2 (nm)^a	20.9	19.6	20.2	20.6	20.1
Absorption edge (nm)	394	423	438	456	471
Band gap (eV)	3.15	2.93	2.83	2.72	2.63

^a𝐷_TiO2 is calculated from the most intense diffraction peak (101) of XRD spectra of the samples.