Enhanced Fluoride Uptake by Layered Double Hydroxides under Alkaline Conditions: Solid-State NMR Evidence of the Role of Surface >MgOH Sites

2021 ◽  
Author(s):  
Chao Ren ◽  
Mengzi Zhou ◽  
Zhengmao Liu ◽  
Lixin Liang ◽  
Xiaozhan Li ◽  
...  
Keyword(s):  
Solid State ◽  
Layered Double Hydroxides ◽  
Solid State Nmr ◽  
Fluoride Uptake ◽  
Alkaline Conditions ◽  
Double Hydroxides

From Layered Double Hydroxides to Layered Double Hydroxide-Based Nanocomposites—A Solid-State NMR Study

2009 ◽  
Vol 113 (51) ◽  
pp. 21308-21313 ◽  
Author(s):  
Anastasia Vyalikh ◽  
Francis Reny Costa ◽  
Udo Wagenknecht ◽  
Gert Heinrich ◽  
Dominique Massiot ◽  
...  
Keyword(s):  
Solid State ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Solid State Nmr ◽  
Nmr Study ◽  
Double Hydroxide ◽  
Double Hydroxides

Dehydration and Dehydroxylation of Layered Double Hydroxides: New Insights from Solid-State NMR and FT-IR Studies of Deuterated Samples

2015 ◽  
Vol 119 (22) ◽  
pp. 12325-12334 ◽  
Author(s):  
Guiyun Yu ◽  
Yahui Zhou ◽  
Rong Yang ◽  
Meng Wang ◽  
Li Shen ◽  
...  
Keyword(s):  
Solid State ◽  
Layered Double Hydroxides ◽  
Solid State Nmr ◽  
Ir Studies ◽  
Ft Ir ◽  
Double Hydroxides

Exploring the role of stearic acid in modified zinc aluminum layered double hydroxides and their acrylonitrile butadiene rubber nanocomposites

2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
Subramani Bhagavatheswaran Eshwaran ◽  
Debdipta Basu ◽  
Sankar Raman Vaikuntam ◽  
Burak Kutlu ◽  
Sven Wiessner ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Layered Double Hydroxides ◽  
Butadiene Rubber ◽  
Acrylonitrile Butadiene Rubber ◽  
Rubber Nanocomposites ◽  
Double Hydroxides

Synthesis of Li/Al layered double hydroxide-guest composites under mild acid conditions

Clay Minerals ◽  
2004 ◽  
Vol 39 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Deng-Shiu Yang ◽  
Ming-Kuang Wang ◽  
Shan-Li Wang
Keyword(s):  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Starting Material ◽  
Anionic Clays ◽  
Step Procedure ◽  
Alkaline Conditions ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Mild Acid ◽  
Positively Charged

AbstractLayered 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 acidsensitive anions, Fe(CN)64−, Li/Al LDH-Fe(CN)64− 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 ≈ 9).

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