The specific surface area of mesoporous γ-Fe₂O₃ nanoparticles manufactured utilizing various theories, as well as particle size determination using BET surface area.

Sample	% of CTAB	Specific surface area BJH (m2 g−1)	Specific surface area Langmuir (m2 g−1)	Specific surface area BET (m2 g−1)	Specific surface area t-plot (m2 g−1)	Particle size estimation DEBT (nm)
C2	1.5	121.2	124.9	110.5	95.1	11
C3	3	141.8	140	125.9	95.9	9.7
C4	5	138.1	134	120	92.6	10