Abstract-In this study, the TiO 2 immobilized on fiberglass cloth was prepared to improve the photocatalytic activity of TiO 2 and overcome the difficulty of reuse through a set of different procedures. The microstructure and morphology of TiO 2 loaded on FGC were characterized via SEM and XRD, respectively. The photocatalytic activity of TiO 2 -fiberglass specimens was assessed by the yield of hydroxyl radicals and the extent to which humic acid (HA) was photodegraded in a small reactor. The result revealed that (i)the crystalline structure of immobilized TiO 2 was nearly unchanged compared with pure P25 nanoparticles. (ii)the TiO 2 -fiberglass specimens prepared by PA and HY procedures resulted in more TiO 2 particles loading on FGC and exhibited better photocatalytic activity than by SG procedure. (iii)The steady state concentration of hydroxyl radicals in the photocatalytic system was obtained as 1.11×10 -14 mol.L -1 . (iv)The TiO 2 -fiberglass specimens prepared by HY procedure exhibited good photocatalytic activity on HA degradation.