The Synthetic Effects of Iron with Sulfur and Fluorine on Photoabsorption and Photocatalytic Performance in Codoped TiO_𝟐

Table 1

Formation energies 𝐸_𝑓 (eV) of single-element-doped and codoped TiO₂ in different conditions.

	𝐸𝑓 (eV)
	Ti-rich	O-rich
Fe-TiO2	5.51	−4.80
F-TiO2	−4.97	0.18
S-TiO2	−2.31	2.85
F-Fe-TiO2	−0.19	−5.35
Fe-S-TiO2	4.35	−0.80