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The hydroxyapatite/titanium compounds (HAP/Ti) were prepared with Ti4+ concentrations of XTi = 0.15, 0.2 and 0.25 [XTi = Ti/(Ca+Ti)]. The HAP/Ti compounds were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM) and antibacterial property. The antibacterial property was tested by filtering the bacteria suspension solution with the depositing HAP/Ti compounds on a cotton fabric. The results showed that about 95-98% of the bacteria can be removed by the two-layer filter cloth under UV irradiation. It is also found that the cotton fabrics which coated by the HAP/Ti compounds were immersed in the solution containing bacteria under UV irradiation for 60 minutes, the bactericidal killing percentages were about 78-82%.
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