CO_3^(2-)和C_(12)H_(25)SO_4^-在Mg/Al双氢氧化物层间通道中的竞争嵌入的机制研究（英文）  

A competition mechanism between CO_3^(2-) and C_(12)H_(25)SO_4^- in the interlayer gallery of Mg/Al layered double hydroxides

作　　者：李浩杰[1] 吴丁威 贾新亮 李标[1] 陈淼[1] 王林红[1] 刘晓娟[1] 贾春玲[1] 彭鹏[1] 

机构地区：[1]周口师范学院化学化工学院,河南周口466001

出　　处：《周口师范学院学报》2015年第2期74-78,共5页Journal of Zhoukou Normal University

基　　金：Young Major Teachers Project of Henan Province(No.2011GGJS-162);Undergraduate Students Innovating Foundation of Chemistry and Chemical Engineering of Zhoukou Normal University(No.HYDC201416)

摘　　要：通过XRD、元素分析、傅里叶转换红外光谱(FTIR),研究了CO2-3和C12H25SO-4(DS)阴离子在Mg/Al双氢氧化物层间通道中的竞争嵌入的机制.结果表明,C12H25SO-4通过合成过程中的自组装效应,可有效地插入Mg/Al双氢氧化物层间通道中,形成LDH-DS柱撑化合物.虽然CO2-3阴离子对Mg/Al双氢氧化物层板强烈的吸附力,影响C12H25SO-4进入层间通道,但是DS的空间位阻效应依然可以置换掉大部分CO2-3,而形成LDH-DS柱撑化合物.Site competition among CO2-3and C12H25SO-4（DS）in the interlayer gallery of Mg/Al-layered double hydroxides（LDHs）is determined through a series of experiments and the competition mechanism is proposed.LDH-DS can be effectively synthesized and meets the requirements of experiment quality through a spontaneous self-assembly method.The samples are characterized by X-ray diffraction（XRD）,C,H,and N elemental analysis,FTIR spectra.CO2-3ions have a very strong affinity to LDHs,which inevitably affect the synthesis of LDH-DS.However,anions CO2-3and C12H25SO-4cannot combine layers together in the interlayer gallery,because of big gap in the spacing of layers between LDH-DS and LDH-CO3.

关 键 词：插层反应 插层通道 双氢氧化物 

分 类 号：O175.9[理学—数学]