【摘要】 <正>层状双氢氧化物(Layered double hydroxide,LDH)是一种具有阴离子可交换性质的层状无机材料,由于其具有多种功能性质,已被广泛应用于催化[1～3]、酸吸附剂[4]、传感器[5]及聚合物填料[6～8]等领域.传统的共沉淀法制备的LDH结晶度低、尺寸小(直径通常小于100 nm).1998年,Costantino等[9]采用均匀沉淀法制备出了高结晶度、大尺寸(微米量级)且层间具有CO2-3的LDH(LDH-CO3),引起了人们的极大兴趣.为解决LDH-CO3难于交换和剥离的难题,Iyi等[10,11]采用两步法制备了层间具有更多还原

【Abstract】 A convenient direct decarbonation method was developed to prepare organically-modified layered double hydroxides[dodecyl sulfate or dodecyl benzene sulfonate anions intercalated LDHs(LDH-DS or LDH-DBS)] using LDH-CO3 as raw material.The resulting products were characterized by powder X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR) and scanning electron microscopy(SEM).The results show that the LDH-DS and LDH-DBS with high crystallinity and high purity are successfully obtained,and their morphology and sizes are unchanged.更多还原