纳米埃洛石-金属氧化物复合材料的制备与性能研究  

Study on the preparation and properties of nano halloysite-metal oxide composite

作　　者：刘达 刘静 邓泽斌 赖升晖 黄金灼 王瑛赫 袁光明[1] Liu Da;Liu Jing;Deng Zebin;Lai Shenghui;Huang Jinzhuo;Wang Yinghe;Yuan Guangming(School of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004)

机构地区：[1]中南林业科技大学材料科学与工程学院,长沙410004

出　　处：《化工新型材料》2024年第S01期388-393,共6页New Chemical Materials

基　　金：国家自然科学基金(32171708和31770606);国家重点研发计划项目(2019YFE0114600)。

摘　　要：利用单一方式去除甲醛效果差,采用物理吸附与催化相结合的方式,可起到优势互补的效果。以硅烷偶联剂(KH550)改性的纳米埃洛石(HNTs)为载体,MnO_(2)、CuO和CeO_(2)为催化剂制备了一种用于去除室内甲醛的埃洛石-金属氧化物复合材料。结果表明:Cu-Mn-Ce已负载至纳米埃洛石中;且纳米埃洛石的大孔径和Cu-Mn-Ce的高比表面积为复合材料提供了更利于吸附甲醛的孔结构;此外,Cu-Mn-Ce的负载为复合材料提供了可将甲醛催化转化成CO_(2)和H_(2)O的活性氧,经过24h后,复合材料在室温下的甲醛去除率为57.4%。因此,该方法制备的复合材料在室内除醛领域具有一定的研究潜能。The use of a single approach to remove formaldehyde is ineffective,and the use of a combination of physical adsorption and catalysis can provide complementary advantages.A nano halloysite-metal oxide composite for indoor formaldehyde removal was prepared using silane coupling agent(KH550)-modified nano halloysite(HNTs)as the carrier and MnO_(2),CuO,CeO_(2) as the catalysts.The results showed that Cu-Mn-Ce had been successfully loaded into nano halloysite,and the large pore size of nano halloysite and the high specific surface area of Cu-Mn-Ce provided the composite with a pore structure more conducive to the adsorption of formaldehyde.Moreover,the loading of Cu-Mn-Ce provided the composite with active oxygen that could catalytically convert formaldehyde into CO_(2) and H_(2)O.After 24 hours at room-temperature,the formaldehyde removal rate was 57.4%.Therefore,the composite prepared by this method had certain research potential in the field of indoor formaldehyde removal.

关 键 词：纳米埃洛石 铜锰铈金属氧化物 室内除醛 

分 类 号：O643.36[理学—物理化学]