In our paper, spherical model was just a choice in the SAXS date fitting, so we did not provide more illustrate, but a reference (L A Feigin and D I Svergun, Structure Analysis by Small-Angle X-Ray and Neutron Scattering, Plenum Press, New York, 1987) was provide in the manuscript. On line 173, we gave a conclusion “the number of pores increased, but the size distribution did not change.” We did not consider the pore volume, but we can deduce that the pores volume increase as the increase of the number of pores.
Can you explain why an increase in scattering intensity indicates increase in more small voids rather than an increase in existing void sizes?