“…The effect of the specific surface and pore size of the photocatalyst was tested by the N 2 adsorption–desorption method. As shown in Figure c–e, the adsorption isotherms of MIS, In 2 O 3 , and MIS-In 2 O 3 -(10:1) are classified as a typical type IV adsorption isotherm containing an H3-type hysteresis, which confirms the mesoporous structure. , The test results show that the specific surface areas of MIS, In 2 O 3 , and MIS-In 2 O 3 -(10:1) are 21.91, 45.22, and 42.24 m 2 /g, respectively. The MIS-In 2 O 3 -(10:1) sample has a larger specific surface area than MIS, which is about twice that of pure MIS.…”