H2O2修饰层状钛酸的离子交换性能  

Ion Exchange Property of H2O2-Modified H1.07Ti1.73O4·H2O Layered Titanate

作　　者：张瑾[1] 周雯丽 王兴[2] 孔新刚[2] Zhang Jin;Zhou Wenli;Wang Xing;Kong Xingang(School of Science,Xijing University,Xi'an Shaanxi 710123,China;School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xi'an Shaanxi 710021,China)

机构地区：[1]西京学院理学院,陕西西安710123 [2]陕西科技大学材料科学与工程学院,陕西西安710021

出　　处：《辽宁石油化工大学学报》2020年第3期1-7,共7页Journal of Liaoning Petrochemical University

基　　金：陕西省教育厅产业化培育项目(19JC009)。

摘　　要：采用H2O2溶液处理层状钛酸H1.07Ti1.73O4·H2O(HTO),对其实现H2O2插层改性。H2O2分子进入到层状钛酸的TiO6八面体层间,并与层中Ti^4+形成过氧钛配位键,提高了TiO6层负电荷密度。利用XRD、SEM、TEM、XRF、FT-IR等测试手段对离子交换前后的样品进行表征。结果表明,H2O2修饰后的HTO相对于HTO,其离子交换效率和离子交换容量都得到大幅度提升,其主要原因是H2O2的引入使TiO6八面体层的负电荷增多。In this paper,layered titanic acid H1.07Ti1.73O4·H2O(HTO)was treated with hydrogen peroxide solution to achieve the hydrogen peroxide intercalation and modification of HTO.The hydrogen peroxide molecules entered into the interlayer of TiO6 octahedral layer,forming a peroxytitanium coordination bond with Ti4+in the layer,which increased the negative charge density of the TiO6 layers.XRD,SEM,TEM,XRF,FT⁃IR and other methods were used to characterize the samples before and after ion exchange.The ion exchange experiments show that compared with HTO,the ion exchange efficiency and ion exchange capacity of H2O2⁃modified HTO are greatly enhanced.And the main reason is that the introduction of H2O2 leads to the increase of negative charge of TiO6 octahedral layers.

关 键 词：层状钛酸 H2O2 插层 离子交换 

分 类 号：TB321[一般工业技术—材料科学与工程]