A composite method of mesoporous silicon and nano-TiO_2 were reported,then a nano-TiO_2-mesoporous-silica composite were fabricated,which is of high adsorption and high photocatalytic activity.On this basis,a new type of photocatalytic gas filter was constructed,by using UV LED with 365 nm wavelength as light source,custom made semi-leakage optical polymer fiber as light guide medium.Experimental results show that it has a capacity of adsorbing formaldehyde of more than 3 mg on the filter with 350 g composi...
【基金】
国家自然科学基金(Nos.11474351,61275106,11504416)资助~~
【更新日期】
2018-07-27
【分类号】
O643.36;TB332
【正文快照】
1-1002170filter is adsorption saturated,the formaldehyde gas flow rate is 2L/min,the inlet concentration is 0.7mg/m3,the rate of real-time decomposition of formaldehyde reaches 72μg/h and the formaldehydeconcentration in the output gas drops to 0.09mg/m3
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