Mesoporous Silica Supported Au Nanoparticles with Controlled Size as Efficient Heterogeneous Catalyst for Aerobic Oxidation of Alcohols

Table 1

Structural parameters and supported Au nanoparticles size on mesoporous silica with different amounts of Au loading.

Sample	Support	Pore diameter (nm)	Weight ratio of Au (%)	Au nanoparticles size (nm)
				From XRD patterns	From TEM images
Au-1	MCM-41	3.0	2.4	1.4	1–3
Au-2	SBA-15	8.5	3.0	2.3	2–4
Au-3	SBA-15	8.5	9.1	4.2	5–9
Au-4	MCM-41	3.0	10.3	5.4	5–15

The ratio of Au calculated from ICP.
The particle grain size calculated from Scherrer’s equation.