Abstract：Aqueous suspensions of TiO2 nano-photocatalysts were prepared and the photocatalysts were loaded on cotton fabric, polyester fabric and polyester/cotton blended fabric by using a padding-drying-curing process. The loaded fabrics were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The gaseous ammonia was derived from an environmental condition simulated chamber. The specifically designed photocatalytic reactor was used to assess the effect of different types of fabrics on ammonia removal efficiency of the nano-photocatalysts, and their photocatalytic activity on different types of fabrics was compared. The results indicated that the cotton loaded with nano-photocatalysts was higher than the polyester fabric or polyester/cotton blending fabric loaded with the nano-photocatalysts in terms of the ammonia removal efficiency. The ammonia removal efficiency of polyester fabric or polyester/cotton blending fabric could be improved through loading with Ag-mixed TiO2 nano-photocatalyst.