Reusable adsorbents for dilute solution separation. 5. Photodegradation of organic compounds on surfactant-modified titania

Effect of cationic and anionic surfactants on the sorption and desorption of perfluorooctane sulfonate (PFOS) on natural sediments

“…In each test, 45 mg of PFOS was added in 50 mL of the solution, which exceeds the reported water solubility of 589 mg L À1 at 25 C (Beach et al, 2006), but lower than the CMC of 1076 mg L À1 for PFOS (Yuan et al, 2001). The tubes were shaken at 250 rpm in dark for 48 h at 25 AE 1 C, and then centrifuged at 9000 g for 30 min to separate the solid PFOS that is not dissolved.…”

Molecular dynamics simulations of structural transformation of perfluorooctane sulfonate (PFOS) at water/rutile interfaces

“…TiO 2 is one of the most common and technologically important metal oxides for modern science and technology, and shows a relatively high affinity to PFOS (Yuan et al, 2001). Rutile TiO 2 was chosen as the model oxide surface in this MD study.…”

Assembling structures and dynamics properties of perfluorooctane sulfonate (PFOS) at water–titanium oxide interfaces

“…Rutile (the most abundant polymorph of TiO 2 ) was chosen as the model substrate because it is one of the most common and technologically important metal oxides for modern science and technology [24][25][26][27] and showed a much higher affinity to PFOS than Fe and Al oxides in experiments [5,28]. An atomistic picture of PFOS adsorption on specific crystal planes was obtained through the MD method.…”