Synthesis and Characterization of Mesoporous Silica SBA-15 and ZnO/SBA-15 Photocatalytic Materials from the Ash of Brickyards

Table 1

Mass percent of elements contained in SBA-15 and ZnO/SBA-15.

Elements	Mass percent of elements (%)
	SBA-15	ZnO/SBA-15
O	62.72	53.05
Na	1.36	1.14
Si	35.92	26.93
Zn	0.00	19.89