蛋白土/纳米二氧化钛复合材料的制备与应用研究  

Study on Preparation and Application of Nano-TiO_2/opal Composite Material

作　　者：文明[1] 郑水林[1] 刘月[1] 熊余[1] 王兴华[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《非金属矿》2008年第6期41-42,45,共3页Non-Metallic Mines

摘　　要：用酸处理方法对煅烧后的蛋白土进行提纯后采用湿式研磨法在其表面包覆纳米TiO2,通过单因素法确定最佳复合条件。实验结果表明,纳米TiO2/蛋白土复合粉体材料的最佳制备工艺条件为:研磨时间15min,分散剂用量为0.3%,TiO2加入量10%,液固比4∶1。湿式研磨法制备的蛋白土/纳米二氧化钛复合材料8h内对甲醛的去除率达到71.2%。After treating calcined opal powder with acid the optimal conditions of acid treating and composite of nano-TiO2/opal powder have been studied through orthogonal single factor experiment. The results showed that the best technological conditions of nano-TiOjopal powder are as follows： grinding time 15min, amount of dispersant 0.3%, addition of TiO2 10 percent, liquid/solid 4 ： 1. The nano-titanium dioxide and opal composite materials made by wet grinding can removal formaldehyde of 71.2 percent within eight hours.

关 键 词：蛋白土 TIO2 复合材料 甲醛降解 

分 类 号：TB332[一般工业技术—材料科学与工程]