ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
Nano-TiOz powders with pure anatase structure were prepared by the method of precipitation-solution-gelation, using HzTi03, hydrogen peroxide and ammonia as reactants. Active red X-3B dye solution was selected as a model pollutant for the photocatalysis degradation experiments. The effects of grain sizes, dosage and microstructure of nano-Ti02 on its photocatalysis properties were studied. The results show that photo-activity of the nano-TiO~ is enhanced with the grain sizes reducing or dosages increasing of nano-TiOz. However, excess increase in nano-Ti02 concentration is not advantageous to the enhancement of the photo-activity. Anatase Ti02 demonstrated a higher photo-activity than rutile TiOz. The dye solution hardly degraded without nano-TiOz powders being added into it or under sunlight irradiation.