An inorganic nanomaterials combination of Sm, Ag, and TiO2 was synthesized using supercritical fluid drying (SCFD)
combined with sol-gel techniques. The structure, photocatalysis and bacteriostatic activity of the materials were characterized by
X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XRPS), photocatalytic
performance, and antibacterial activity experiments. The XRD results showed that the average particle diameter of Sm/Ag/TiO2
was 14.62 nm and Ag and Sm ions were dispersed on the surface of TiO2 in a highly dispersed, amorphous form. The TEM image
showed that the size of the particle was 12 nm using the scherer formula. The XPS result showed that the element Sm was
doped and Ag was loaded inorganic nanomaterials successfully. Sm/Ag/TiO2 exhibited optimal photocatalytic properties at 600
ºC, the photocatalytic optimal proportion of Sm/Ag/TiO2 was 2:2:100. When the molar ratio was 2:2:100, the bacteriostatic circle
diameter was 16 mm for Staphylococcus aureus, the minimum bacteriostatic concentration was 200 μg/mL for white beads
coccus, and the minimum bactericidal concentration was 2×104 μg/mL for white beads coccus. The SEM results showed that the
antibacterial material attached to the candida albicans cell surface, cells appeared fold deformation. Therefore the inorganic
nanomaterials Sm/Ag/TiO2 had high temperature resistance, good photocatalytic and antibacterial characteristics in visible light