The Key Role of pH Value in the Synthesis of Titanate Nanotubes-Loaded Manganese Oxides as a Superior Catalyst for the Selective Catalytic Reduction of NO with NH₃

Table 1

Surface area, total pore volume, and mean pore diameter of the Mn/TNTs-AL, Mn/TNTs-AC, and Mn/TNTs-NE samples.

Sample	BET surface area; (m^2/g)	Pore volume; (cm^3/g)	Pore size; (nm)
Mn/TNTs-AC	97.1	0.35	11.74
Mn/TNTs-NE	122.4	0.53	16.45
Mn/TNTs-AL	8.3	0.06	19.46