摘要
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.
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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第4期649-651,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:51073162)资助
关键词
层状双氢氧化物
有机阴离子插层
直接脱碳酸化
Layered double hydroxide(LDH)
Organic anion intercalation
Direct decarbonation