纳米二氧化钛光催化降解甲醛、氨气的研究  

Nano-titanium Dioxide Photocatalytic Degradation of Formaldehyde, Ammonia

作　　者：张洋 李道荣[1] 李盼[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《广东化工》2015年第1期3-4,11,共3页Guangdong Chemical Industry

摘　　要：以自制纳米二氧化钛为主体,高铝酸盐为载体制备了复合光催化材料。以甲醛、氨气模拟实验样品,考察了材料的组成比例、吸附作用、光照条件对甲醛、氨气降解效率的影响。结果表明:高铝酸盐与自制纳米二氧化钛按8∶2成膜制备的复合材料,在光催化降解甲醛、氨气的实验中,效果明显;且光催化降解作用优于吸附的降解作用;当催化材料距光源较远时,引入导光光纤可明显提高光催化材料的催化效率。Composite photocatalytic materials were prepared by mixed sell-made nano-titanium dioxide and perhafnate. With formaldehyde and anlmonia as the simulated samples, the effects of material composition ratio, adsorption and light condition on the degradation efficiency of formatdehyde and ammonia were investigated in detail. The results showed that： The effective of photocatalysis is better then adsorption. The composite photocatalytic materials composed by perhafnate and nano-titanium dioxide with a ratio of 8 ; 2 shows a good effect on the photocatalytic degradation of formaldehyde and ammonia. In addition, Optical fiber can significant improve the catalytic efficiency of photocatalytic materials when the catalytic materials is far away from the light source.

关 键 词：纳米二氧化钛 光催化 甲醛 氨气 

分 类 号：TQ134.11[化学工程—无机化工]