Carboxylate-intercalated layered double hydroxides for H2 sorption

2014 ◽  
Vol 2 (33) ◽  
pp. 13452-13463 ◽  
Author(s):  
Yu-Wei Huang ◽  
Soofin Cheng
Keyword(s):  
Layered Double Hydroxides ◽  
Hydrogen Adsorption ◽  
High Surface ◽  
Surface Areas ◽  
Double Hydroxides ◽  
First Time

Li–Al layered double hydroxides of high surface areas were prepared by intercalating a mixture of arylate and acetate ions, and their hydrogen adsorption capabilities were explored for the first time.

scholarly journals Bifunctional acid–base mesoporous silica@aqueous miscible organic-layered double hydroxides

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3749-3754 ◽  
Author(s):  
Hongri Suo ◽  
Haohong Duan ◽  
Chunping Chen ◽  
Jean-Charles Buffet ◽  
Dermot O'Hare
Keyword(s):  
Mesoporous Silica ◽  
Pore Size ◽  
Layered Double Hydroxides ◽  
High Surface ◽  
High Surface Area ◽  
Core Shell ◽  
Acid Base ◽  
Double Hydroxides ◽  
Hierarchical Morphology ◽  
Size And Structure

Core@shell materials which exhibit hierarchical morphology with ultra high surface area and controllable pore size and structure have been synthesised.

scholarly journals Application of dissolvable Mg/Al layered double hydroxides as an adsorbent for the dispersive solid phase extraction of gold nanoparticles prior to their determination by atomic absorption spectrometry

2020 ◽  
Vol 12 (3) ◽  
pp. 368-375
Author(s):  
Tatiana G. Choleva ◽  
Dimosthenis L. Giokas
Keyword(s):  
Gold Nanoparticles ◽  
Solid Phase Extraction ◽  
Layered Double Hydroxides ◽  
Metallic Nanoparticles ◽  
Solid Phase ◽  
Absorption Spectrometry ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Double Hydroxides ◽  
First Time

In this work, dissolvable layered double hydroxides (LDHs) were used for the first time for the extraction and preconcentration of metallic nanoparticles from water samples.

Interactions of pesticides with clays and layered double hydroxides: a review

Clay Minerals ◽  
2008 ◽  
Vol 43 (2) ◽  
pp. 155-175 ◽  
Author(s):  
J. Cornejo ◽  
R. Celis ◽  
I. Pavlovic ◽  
M. A. Ulibarri
Keyword(s):  
Clay Minerals ◽  
Layered Double Hydroxides ◽  
Water Contamination ◽  
Natural Ecosystems ◽  
Surface Areas ◽  
Natural Clays ◽  
Double Hydroxides ◽  
Soil And Water Contamination ◽  
Adsorbent Materials ◽  
Soil And Water

AbstractThe increasing presence of pesticides in natural ecosystems has stimulated research to look for improved adsorbent materials which can be used to remediate and prevent soil and water contamination by these compounds. Among the different materials that have been assayed as adsorbents of pesticides are natural clay minerals, particularly 2:1 phyllosilicates and their structurally complementary synthetic analogues layered double hydroxides (LDHs). The great interest in natural clays and LDHs as adsorbent materials is mainly related to the large specific surface areas associated with their layered structure, the ease with which they are obtained or synthesized, and the possibility of modifying their surfaces to increase their affinity for specific adsorbates. This review summarizes the adsorptive properties of natural clays and LDHs for pesticides and related organic compounds. Particular emphasis is given to the surface modification of clay minerals and LDHs with organic ions as a strategy to improve the efficiency of these materials as pesticide adsorbents. Potential applications of unmodified and modified clays and LDHs as adsorbents to prevent and remediate soil and water contamination by pesticides are also discussed.

CuCoFe Layered Double Hydroxides as Laccase Mimicking Nanozymes for Colorimetric Detection of Pheochromocytoma Biomarkers

2022 ◽  
Author(s):  
Feng-Wei Huang ◽  
Ke Ma ◽  
Xiu-Wen Ni ◽  
Sheng-Lin Qiao ◽  
Kezheng Chen
Keyword(s):  
Layered Double Hydroxides ◽  
Colorimetric Detection ◽  
Biomarker Detection ◽  
Double Hydroxides ◽  
First Time ◽  
Colorimetric Biosensing ◽  
Poor Stability

Laccase catalyzed colorimetric biosensing approach is promising for pheochromocytoma biomarker detection yet suffer from enzyme poor stability and high cost for production. here we report for the first time an...

Synthesis of high surface area MgAl2O4 spinel as catalyst support via layered double hydroxides-containing precursor

2016 ◽  
Vol 132-133 ◽  
pp. 243-250 ◽  
Author(s):  
Dalin Li ◽  
Miaomiao Lu ◽  
Yunbing Cai ◽  
Yanning Cao ◽  
Yingying Zhan ◽  
...  
Keyword(s):  
Surface Area ◽  
Layered Double Hydroxides ◽  
High Surface ◽  
Catalyst Support ◽  
High Surface Area ◽  
Mgal2o4 Spinel ◽  
Double Hydroxides

Electrospun Cellulose Acetate Fiber Containing Rubber Extract

2015 ◽  
Vol 1119 ◽  
pp. 329-333 ◽  
Author(s):  
Natthakitta Suwannateep ◽  
Chidchanok Meechaisue ◽  
Hubert Ruch
Keyword(s):  
Cellulose Acetate ◽  
High Surface ◽  
Potential Candidate ◽  
High Porosity ◽  
Fiber Mats ◽  
New Approach ◽  
Surface Areas ◽  
Innovative Products ◽  
Cellulose Acetate Fiber ◽  
First Time

Recent studies on cream of rubber extract (HB) have significantly showed skin improvement results, however, there were color and odor issues. To solve the problems, we successfully produced ultra-fine cellulose acetate (CA) fiber mats (electrospun fibers) containing 1-5 wt% extracts of rubber from Hevea brasilensis without any chemical additions. This new approach has in fact revealed the desired material and biomolecule immobilization. The SEM photographs show the straight and even shaping of the processed HB-CA fibers. The average fiber diameters of the HB-CA fibers ranged between 415 and 585 nm. Moreover, HB-CA solutions containing 1-3% HB extract resulted in a more consistent texture of the fiber mats. This was the first time to produce nanofibers using only rubber extract and cellulose acetate without any other potentially bioactive components involved. This innovation did not only solve the initially addressed color and odor issues, but also provided a new purified material of very small fibers which allows better control of its bioactivity due to the fact that less chemical substances are involved. Its highly interesting characteristics, such as high surface areas to mass ratio, high porosity et al make this result an excellent potential candidate e.g. facial masks, and other innovative products in the field of cosmetics and pharmaceutical industry. Further research is needed and highly promising.

scholarly journals Layered Double Hydroxides: A Toolbox for Chemistry and Biology

Crystals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 361 ◽  
Author(s):  
Giuseppe Arrabito ◽  
Aurelio Bonasera ◽  
Giuseppe Prestopino ◽  
Andrea Orsini ◽  
Alessio Mattoccia ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Layered Double Hydroxides ◽  
Cell Biology ◽  
Cellular Differentiation ◽  
High Surface ◽  
Volume Ratio ◽  
Significant Research ◽  
Organic Catalysis ◽  
Double Hydroxides

Layered double hydroxides (LDHs) are an emergent class of biocompatible inorganic lamellar nanomaterials that have attracted significant research interest owing to their high surface-to-volume ratio, the capability to accumulate specific molecules, and the timely release to targets. Their unique properties have been employed for applications in organic catalysis, photocatalysis, sensors, drug delivery, and cell biology. Given the widespread contemporary interest in these topics, time-to-time it urges to review the recent progresses. This review aims to summarize the most recent cutting-edge reports appearing in the last years. It firstly focuses on the application of LDHs as catalysts in relevant chemical reactions and as photocatalysts for organic molecule degradation, water splitting reaction, CO2 conversion, and reduction. Subsequently, the emerging role of these materials in biological applications is discussed, specifically focusing on their use as biosensors, DNA, RNA, and drug delivery, finally elucidating their suitability as contrast agents and for cellular differentiation. Concluding remarks and future prospects deal with future applications of LDHs, encouraging researches in better understanding the fundamental mechanisms involved in catalytic and photocatalytic processes, and the molecular pathways that are activated by the interaction of LDHs with cells in terms of both uptake mechanisms and nanotoxicology effects.

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