Zinc and boron co-doped nanotitania with enhanced photocatalytic degradation of Acid Red 6A under visible light irradiation

Table 2 Results of band gap (UV-Vis-DRS), crystallite size (XRD), particle size (TEM) and BET surface area

Catalyst	Band gap (eV)	Crystallite size (nm)	Particle size (nm)	Surface area (m² g⁻¹)
Undoped TiO₂	3.12	36.5	8	47
Zn-TiO₂ (5 mol% Zn) [16]	2.83	14	13	63
B-TiO₂ [24]	2.95	18.5	15	49
Zn,B-TiO₂ (0.50 wt% of Zn & 0.50 wt% of B)	2.49	9.1	5.6	91

ISSN: 2468-2039