Synthesis and Characterization of CeO₂-SiO₂ Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye

Table 2

Texture parameters of CeO₂-SiO₂ samples.

Sample	𝑆BET (m^2/g)	𝑆𝑡 (m^2/g)	𝑆micro (cm^2/g)	𝑆ext (cm^2/g)	𝑉𝑝 (cm^3/g)	𝑉micro (cm^3/g)	𝑉meso (cm^3/g)	𝑟 (Å)
M-30 min	335	340	240	95	0.59	0.090	0.500	5.58
M-60 min	300	320	210	90	0.58	0.085	0.495	5.57
M-90 min	236	250	170	66	0.44	0.050	0.390	5.56
M-120 min	118	130	95	23	0.30	0.040	0.260	5.55
M-180 min	100	110	85	15	0.28	0.030	0.250	5.54
H-24 h	90	10	77	13	0.26	0.020	0.240	5.53
P25	50	—	—	—	—	—	—	—