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Our news editors obtained a quote from the research, "The hierarchical porous structure of the 3DD-TiO2 would greatly favor the improvement of photocatalytic activity via enlarging the specific surface area. In comparison with the same-sized microspheres and commercial Degussa P25, which are both spherically structured, 3DD-TiO2 displays a consistently better performance under the tested environment. Without UV illumination, the removal efficiency of Escherichia coli by 3DD-TiO2 is 6.4% and 8.7% higher than that of microspheres and P25, respectively. Under UV radiation, the disinfection kinetic constant k of the disinfection reaction using 3DD-TiO2 is 23.2% and 33.9% higher than that of using microspheres and P25, respectively. A series of optimization studies have been carried out to identify the optimum operating parameters of a photocatalytic process using 3DD-TiO2. The results tend to suggest: (a) optimum catalyst concentration is around 100 mg/L; (b) the optimum temperature for bacteria inactivation ranges between 10 degrees C and 20 degrees C; © presence of humic acid and anions (SO42-) exhibits an inhibitory effect on water disinfection process; and (d) cations (Ca2+) enhance the disinfection rate."
According to the news editors, the research concluded: "These optimum operating parameters could be directly referenced for full-scale applications in future."
For more information on this research see: Effects of TiO2 nanostructure and operating parameters on optimized water disinfection processes: A comparative study.
The news editors report that additional information may be obtained by contacting
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