Please use this identifier to cite or link to this item:
|標題:||Synthesis of Li/Al layered double hydroxide-guest composites under mild acid conditions||作者:||Yang, D.S.
|關鍵字:||layered double hydroxide;LDH;anionic clay;intercalation;organic;anion;oxometallic anion;organometallic anion;intercalation compounds;anion-exchange;chemistry||Project:||Clay Minerals||期刊/報告no：:||Clay Minerals, Volume 39, Issue 2, Page(s) 115-121.||摘要:||
Layered double hydroxides (LDHs) are known as 'anionic clays'. They comprise a class of material with positively charged octahedral double hydroxyl layers and exchangeable anions. The Li/Al LDH term includes a group of LDHs with Li/Al octahedral double hydroxyl layers. We have demonstrated a modifed method, using Li/Al LDH-OH (OH- as interlayer anions) as the starting material, for preparing Li/Al LDH-X (X represents interlayer anions, including dioctyl sulphosuccinate (DOSS), dodecyl sulphate (DDS), mercaptoacetate (MA), EDTA, Tiron and dichromate) under mild acid conditions (pH in the range 4 to 5). However, in the case of acid-sensitive anions, Fe(CN)(6)(4-), Li/Al LDH-Fe(CN)(6)(4-) can be prepared by a two-step procedure using Li/Al LDH-DOSS or similar compounds as intermediates to react with acid-sensitive anions under mild alkaline conditions (pH approximate to 9).
|Appears in Collections:||土壤環境科學系|
Show full item record
TAIR Related Article
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.