Characterization and Catalytic Properties of Nano-Sized Au Metal Catalyst on Titanium Containing High Mesoporous Silica (Ti-HMS) Synthesized by Photo-Assisted Deposition and Impregnation Methods

Table 1

Texture parameters of Ti-HM, img-Au/Ti-HMS and PAD-Au/Ti-HMS.

Sample	𝑆BET (m^2/g)	𝑆𝑡 (m^2/g)	𝑆meso (cm^2/g)	𝑆micro (cm^2/g)	𝑆ext (cm^2/g)	𝑉𝑝 (cm^3/g)	𝑉micro (cm^3/g)	𝑉meso (cm^3/g)	r (Å)
Ti-HMS	602	610	408	200	490	0.400	0.040	0.354	21.59
img-Au/Ti-HMS	643	650	300	210	520	0.426	0.052	0.368	20.48
PAD-Au/Ti-HMS	753	750	380	212	640	0.481	0.049	0.436	18.38

Note: (𝑆_BET) BET-surface area, (𝑆_𝑡) surface area derived from 𝑉_1−𝑡 plots, (𝑆_mic) surface area of micropores, (𝑆_mes) surface area of mesopores, (𝑆_ext) external surface area, (𝑉_p) total pore volume, (𝑉_mic) pore volume of micropores, (𝑉_mes) pore volume of mesopores, (r) mean pore radius.