The Characterization and Hydrogen Production from Water Decomposition with Methanol in a Semi-Batch Type Reactor Using In, P-TiO₂s

Table 1

Summary of the onset absorption wavelengths, band gap energies, and chemical composition of 1.0 mol% In, P incorporated TiO₂ photocatalysts.

Photocatalyst	Calcination temperature (°C)	Onset absorption wavelength, λg (nm)	Band gap energy (eV)	Element (wt.%)
				O K	Ti K	P K	In L	Totals
TiO2-A	500	418	2.97
TiO2-R	800	430	2.88	39.88	60.12			100.0
In-TiO2-A	500	407	3.05
In-TiO2-R	800	439	2.82	44.23	55.26		0.51	100.0
P-TiO2-A	500	402	3.08
P-TiO2-R	800	425	2.92	43.01	56.47	0.52		100.0