论文部分内容阅读
用二氧化钛(TiO_2)纳米材料修饰的547孔微结构聚合物光纤(MPOF).二次预制棒作为阵列化微管式光催化反应器对亚甲基兰的光催化分解进行研究.将高光催化活性的P25型二氧化钛纳米粒子均匀分散在TiO_2溶胶中对547孔微结构聚合物光纤孔洞内壁进行铺膜,得到了负载光催化剂的阵列化微管材利该TiO_2MPOF有序复合的阵列化微管不仅对二氧化铁纳米粒子起到负载作用,还可以以作为光波导介质(rolling-up薄膜波导,聚光、导光进入二氧化铁薄膜层)、污染物反应流体通道.以有机染料亚甲基兰为模拟污染物,研究了TiO_2负载量、亚甲基兰的初始浓度及溶液pH值等因素对光降解效果的影响.该反应器547个孔道的内表面用于负载光催化剂,不仅增加了固-液接触面积.也提高了光的吸收效率,从而提高了光催化效率.迄今为止,这种兼具导光、聚光、传质、负载助能于一体的光催化反应器还未见报道.
A 547-well micro-structured polymer optical fiber (MPOF) modified with titanium dioxide (TiO 2) nanomaterials was used as the photocatalytic decomposition of methylene blue by an arrayed microtubular photocatalytic reactor. The photocatalytic activity Of P25 titanium dioxide nanoparticles uniformly dispersed in the TiO 2 sol on the 547-hole microstructured polymer optical fiber hole wall to obtain an array of photocatalyst-supported micro-tubes of the TiO 2 MPOF orderly composite arrayed microtubules not only on the two Iron oxide nanoparticles play a role in the load, but also as an optical waveguide medium (rolling-up film waveguide, light-concentrating, light guide into the iron oxide film layer), the pollutant reaction fluid channel. Organic dye methylene blue is The effects of TiO 2 loading, initial concentration of methylene blue and solution pH on photodegradation were investigated.The inner surface of 547 cells of the reactor was used to support photocatalyst, which not only increased the solid- Liquid contact area.Also improve the light absorption efficiency, thereby enhancing the photocatalytic efficiency.To date, this both light guide, light, mass transfer, load assist in one of the photocatalytic reaction It has not been reported.