北京师范大学学报（自然科学版）2009，Vol.45Issue(4)：375-377,3.
带相反电荷无机纳米片胶体稳定存在的溶剂
SOLVENTS FOR BOTH THE OPPOSITELY-CHARGED INORGANIC NANOSHEETS TO EXIST STABLY AS A COLLOIDAL SUSPENSION
摘要
Abstract
The aim of the present work is to find a solvent in which opposite charged inorganic nanosheets can stably exist as a colloidal suspension. Two types of nanosheets, negatively-charged manganese oxides, and positively-charged Co-Al layered double hydroxide (LDH), were prepared from the precursors of sodium-form birnessite-type manganese oxide and CO_3~(2-) type LDH, respectively. The former was obtained by Na~+/H~+ ion-exchange, TMA~+ (tetramethylammonium ions)-intercalation followed by water-washing on Na-birnessite synthesized by a flux method, while the latter is by CO_3~(2+)/Cl~- and Cl~-/NO_3~- ion exchanges and treatment in formamide on LDH gained by homogeneous precipitation method. It is found that formamide is a good solvent for opposite-charged nanosheets to coexist.关键词
层状化合物/剥离/无机纳米片/胶体/组装溶剂Key words
layered compounds/exfoliation/inorganic nanosheets/colloid/reassembly solvent分类
数理科学引用本文复制引用
赵玉双,马辉,马淑兰,杨晓晶..带相反电荷无机纳米片胶体稳定存在的溶剂[J].北京师范大学学报（自然科学版）,2009,45(4):375-377,3.基金项目
国家自然科学基金资助项目(20671012) （20671012）
