scholarly journals Selective photocatalytic CO2 reduction over Zn-based layered double hydroxides containing tri or tetravalent metals

2020 ◽  
Vol 65 (12) ◽  
pp. 987-994 ◽  
Author(s):  
Xuyang Xiong ◽  
Yufei Zhao ◽  
Run Shi ◽  
Wenjin Yin ◽  
Yunxuan Zhao ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Co2 Reduction ◽  
Double Hydroxides

Theoretical Study on Photocatalytic CO2 Reduction to CO and CH4 over M(II)2M(III/IV)-Layered Double Hydroxides

2022 ◽  
Author(s):  
Xiao-Jie Zhao ◽  
Si-Min Xu ◽  
Yuan Zhong ◽  
Zi-Ru Chen ◽  
Pan Yin ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Theoretical Study ◽  
Co2 Reduction ◽  
Double Hydroxides

The In-situ Growth NiFe-layered Double Hydroxides/g-C3N4 Nanocomposite 2D/2D Heterojunction for Enhanced Photocatalytic CO2 Reduction Performance

2020 ◽  
Author(s):  
Xiaoya Zhao ◽  
Xiuping Zhao ◽  
Inam Ullah ◽  
Linning Gao ◽  
Junzheng Zhang ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Co2 Reduction ◽  
In Situ Growth ◽  
Double Hydroxides

Core-shell structured ZnO@Cu-Zn–Al layered double hydroxides with enhanced photocatalytic efficiency for CO2 reduction

2016 ◽  
Vol 77 ◽  
pp. 118-122 ◽  
Author(s):  
Qiangsheng Guo ◽  
Qinghong Zhang ◽  
Hongzhi Wang ◽  
Zhifu Liu ◽  
Zhe Zhao
Keyword(s):  
Layered Double Hydroxides ◽  
Co2 Reduction ◽  
Core Shell ◽  
Photocatalytic Efficiency ◽  
Double Hydroxides

Ultrathin NiAl-Layered Double Hydroxides Grown on 2D Ti3C2Tx MXene to Construct Core–Shell Heterostructures for Enhanced Photocatalytic CO2 Reduction

2021 ◽  
Author(s):  
Shuang Zhao ◽  
Deng Pan ◽  
Qian Liang ◽  
Man Zhou ◽  
Chao Yao ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Co2 Reduction ◽  
Core Shell ◽  
Double Hydroxides

Insight into mechanism of divalent metal cations with different d-bands classification in layered double hydroxides for light-driven CO2 reduction

2021 ◽  
pp. 130863
Author(s):  
Ruonan Wang ◽  
Zhongyong Qiu ◽  
Shipeng Wan ◽  
Yanan Wang ◽  
Qiang Liu ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Co2 Reduction ◽  
Metal Cations ◽  
Divalent Metal ◽  
Divalent Metal Cations ◽  
Double Hydroxides ◽  
Insight Into

EFFICIENT REMOVAL OF ANIONIC DYE POLLUTANT BY NIMGAL LAYERED DOUBLE HYDROXIDES OF VARIABLE COMPOSITION

2018 ◽  
Vol 1 (4) ◽  
pp. 307-323
Author(s):  
Dipshikha Bharali ◽  
Pankaj Bharali ◽  
Ramesh Ch. Deka
Keyword(s):  
Layered Double Hydroxides ◽  
Variable Composition ◽  
Efficient Removal ◽  
Anionic Dye ◽  
Double Hydroxides

Acceptorless amine dehydrogenation and transamination using Pd-doped layered double hydroxides

2018 ◽  
Author(s):  
Diana Ainembabazi ◽  
Nan An ◽  
Jinesh Manayil ◽  
Kare Wilson ◽  
Adam Lee ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Oxidation States ◽  
Secondary Amines ◽  
Primary Amines ◽  
Acid Dissolution ◽  
Oxidative Amination ◽  
Strong Function ◽  
Excellent Activity ◽  
High Yields ◽  
Double Hydroxides

<div> <p>The synthesis, characterization, and activity of Pd-doped layered double hydroxides (Pd-LDHs) for for acceptorless amine dehydrogenation is reported. These multifunctional catalysts comprise Brønsted basic and Lewis acidic surface sites that stabilize Pd species in 0, 2+, and 4+ oxidation states. Pd speciation and corresponding cataytic performance is a strong function of metal loading. Excellent activity is observed for the oxidative transamination of primary amines and acceptorless dehydrogenation of secondary amines to secondary imines using a low Pd loading (0.5 mol%), without the need for oxidants. N-heterocycles, such as indoline, 1,2,3,4-tetrahydroquinoline, and piperidine, are dehydrogenated to the corresponding aromatics with high yields. The relative yields of secondary imines are proportional to the calculated free energy of reaction, while yields for oxidative amination correlate with the electrophilicity of primary imine intermediates. Reversible amine dehydrogenation and imine hydrogenation determine the relative imine:amine selectivity. Poisoning tests evidence that Pd-LDHs operate heterogeneously, with negligible metal leaching; catalysts can be regenerated by acid dissolution and re-precipitation.</p> </div> <br>

Carbonate Form of Mg,Al-Layered Double Hydroxides for Concentrating Eu(III) and Its Subsequent Analytical Determination in Natural Aqueous Media

2020 ◽  
Vol 42 (5) ◽  
pp. 365-372
Author(s):  
G. N. Pshinko ◽  
L. N. Puzyrnaya ◽  
V. S. Shunkov ◽  
B. P. Yatsik
Keyword(s):  
Layered Double Hydroxides ◽  
Aqueous Media ◽  
Analytical Determination ◽  
Double Hydroxides

Antibiotic-anionic Clay Matrix Used for Drug Controlled Release

2018 ◽  
Vol 69 (2) ◽  
pp. 321-323
Author(s):  
Georgeta Zegan ◽  
Elena Mihaela Carausu ◽  
Loredana Golovcencu ◽  
Alina Sodor Botezatu ◽  
Eduard Radu Cernei ◽  
...  
Keyword(s):  
Controlled Release ◽  
Layered Double Hydroxides ◽  
Bioactive Molecules ◽  
Drug Controlled Release ◽  
Anionic Clays ◽  
Anionic Clay ◽  
Toxicological Studies ◽  
High Efficient ◽  
Clay Matrix ◽  
Double Hydroxides

Anionic clay matrix acting as drug controlled release system have shown in last years a great potential for delivery of bioactive molecules and chemical therapeutics. This organic-inorganic nanohybrid system is high efficient offering an excellent protection of intercalated compounds from degradation. Compared to other nanoparticles used in medical area, anionic clays type layered double hydroxides have found to be biocompatible according to toxicological studies. Ampicillin containing MgAlLDHs and ZnAlLDH samples have been prepared following two routes: anion-exchange procedure and reconstruction from calcined layered double hydroxides. Solid samples have been characterized by FTIR and SEM-EDX highlighting the alteration of pristine LDHs structure when the antibiotic is introduced in the interlayer gallery.

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