摘要
水滑石类化合物(Layered double hydroxides,LDHs)是一种阴离子型层状纳米材料,具有良好结构稳定性、离子交换性、记忆效应及酸碱双功能等特性,作为吸附剂和催化材料广泛应用于环境治理领域。向单一LDHs晶体结构中引入客体分子以制备多功能杂化材料,不仅拓宽了晶体元素组成范畴,还可以提升晶体结构性能甚至引入新的功能,从而有效扩大其应用领域。基于此,本文首先综述了LDHs的基本结构性能特点,以及两种典型生长机理。另外,还简要介绍了水滑石类杂化材料的结构性能特点。最后,根据国内外研究现状,介绍了LDHs及其杂化材料在染料/持久性有机物降解、污水除磷、重金属吸附等水处理以及酸性气体净化等领域的应用。
Layered double hydroxides(LDHs)are commonly known as anionic layered nanomaterials,which are widely used in the field of environmental governance as adsorbents and catalysts owing to the excellent physicochemical properties,such as structural stability,anion exchange capacity,memory effect,acid-base dual function,and so on.Introduction of guest molecules into the structure of LDHs can afford multifunctional hybrid materials,which possess rich composition,and enhanced the crystal structure properties,thus effectively extend its practical applications.This review summarizes the general structure performance and characters,preparation technology and typical formation mechanisms of LDHs.In addition,this review has carried on the simple introduction to the structure performance of its hybrid material.Finally,the application of LDHs and its hybrid in water treatment,such as degradation of dye/persistent organic pollutants,phosphorus removal,and heavy metal adsorption,etc.,and acid gases removal are introduced.
作者
赵晓玲
常宏岗
何金龙
李金金
ZHAO Xiaoling;CHANG Honggang;HE Jinlong;LI Jinjin(Research Institute of Natural Gas Technology,Petrochina Southwest Oil&Gasfield Company,Chengdu 610000,China 2 National R&D Center for High Sulfur Gas Exploitation,Chengdu 610000,China 3 High Sulfur Gas Exploitation Pilot Test Center,CNPC,Chengdu 610000,China)
出处
《材料导报》
CSCD
北大核心
2023年第S01期66-78,共13页
Materials Reports
基金
中国石油西南油气田公司博士后项目“复合金属氧化物对SO2吸附再生特性及反应动力学研究”(B20220306-10)。
关键词
水滑石类化合物
杂化材料
水处理
酸性气体净化
layered double hydroxides
hybrid materials
water treatment
acid gases removal
