Insight into the enhanced catalytic activity of a red mud based Fe2O3/Zn–Al layered double hydroxide in the photo-Fenton reaction

2020 ◽  
Vol 10 (21) ◽  
pp. 7365-7377
Author(s):  
Qingyong Li ◽  
Guangtao Wei ◽  
Yanjuan Yang ◽  
Zhongmin Li ◽  
Linye Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Layered Double Hydroxide ◽  
Red Mud ◽  
Fenton Reaction ◽  
Double Hydroxide ◽  
Insight Into

In this work, the enhanced catalytic activity of red mud based Fe2O3/Zn–Al layered double hydroxide in the photo-Fenton reaction has been studied in detail.

Insight into the role of copper in the promoted photocatalytic removal of NO using Zn2-xCuxCr-CO3 layered double hydroxide

Chemosphere ◽  
2021 ◽  
pp. 130030
Author(s):  
J. Fragoso ◽  
M.A. Oliva ◽  
L. Camacho ◽  
M. Cruz-Yusta ◽  
G. de Miguel ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Photocatalytic Removal ◽  
Double Hydroxide ◽  
Insight Into

Kinetics, isothermal and mechanistic insight into the adsorption of eosin yellow and malachite green from water via tri-metallic layered double hydroxide nanosheets

2022 ◽  
Vol 39 (1) ◽  
pp. 216-226
Author(s):  
Muhammad Altaf Nazir ◽  
Tayyaba Najam ◽  
Muhammad Sohail Bashir ◽  
Muhammad Sufyan Javed ◽  
Muhammad Aswad Bashir ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Malachite Green ◽  
Mechanistic Insight ◽  
Eosin Yellow ◽  
Double Hydroxide ◽  
Insight Into

scholarly journals The Adsorption of Dextranase onto Mg/Fe-Layered Double Hydroxide: Insight into the Immobilization

Nanomaterials ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 173 ◽  
Author(s):  
Yi Ding ◽  
Le Liu ◽  
Yaowei Fang ◽  
Xu Zhang ◽  
Mingsheng Lyu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Double Hydroxide ◽  
Insight Into

scholarly journals Sequestration of orthophosphate by Ca2Al-NO3 layered double hydroxide – Insight into reactivity and mechanism

2019 ◽  
Vol 176 ◽  
pp. 49-57 ◽  
Author(s):  
Belayneh Bekele ◽  
Laura Lundehøj ◽  
Nicholai Daugaard Jensen ◽  
Ulla Gro Nielsen ◽  
Claude Forano
Keyword(s):  
Layered Double Hydroxide ◽  
Double Hydroxide ◽  
Insight Into

Heteropolyanion Substituted Layered Double Hydroxide as Recoverable Catalyst for the Oxidative Desulfurization of Simulated Fuel Oil and Diesel

2014 ◽  
Vol 672-674 ◽  
pp. 613-618
Author(s):  
Feng Li Yu ◽  
Yang Lu
Keyword(s):  
Catalytic Activity ◽  
Layered Double Hydroxide ◽  
Atmospheric Pressure ◽  
Removal Rate ◽  
Sulfur Removal ◽  
Oxidative Desulfurization ◽  
Fuel Oil ◽  
Simulated Fuel ◽  
Recoverable Catalyst ◽  
Double Hydroxide

Heteropolyanion substituted layered double hydroxide were synthesized and used as catalysts for oxidative desulfurization in simulated fuel oil (dibenzothiophene (DBT) inn-octane) or diesel. The catalysts are recoverable and operate with high conversion efficiency under mild conditions of atmospheric pressure and 60 °C in a biphasic system using peroxide hydrogen as oxidant and acetonitrile as extractant. Zn9Al3(OH)24PW12O40(ZnAlPW), Zn9Al3(OH)24PMo12O40(ZnAlPMo) and Zn12Al4(OH)32SiW12O40(ZnAlSiW) were identified as effective catalysts for the oxidative removal of DBT from simulated fuel oil. The order of decreasing catalytic activity is ZnAlPMo > ZnAlPW > ZnAlSiW. The results show that the best catalysts, ZnAlPMo, attained to a DBT conversion of nearly 100%. All the catalysts can be readily recycled by filtration after use. The recoverable ZnAlPMo retains nearly the same catalytic activity as the fresh. ZnAlPMo was found to exhibit an ideal catalytic activity in oxidative desulfurization of diesel with a total sulfur removal rate of 91.8%.

Reduction in Chemical Oxygen Demand of TNT Red Water Using Layered Double Hydroxide Prepared from Red Mud and Brucite

2017 ◽  
Vol 34 (10) ◽  
pp. 721-730 ◽  
Author(s):  
Pan Hu ◽  
Yihe Zhang ◽  
Fengzhu Lv ◽  
Xinke Wang ◽  
Wangshu Tong ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Layered Double Hydroxide ◽  
Red Mud ◽  
Oxygen Demand ◽  
Double Hydroxide

Calcined Ni—Al layered double hydroxide as a catalyst for total oxidation of volatile organic compounds: Effect of precursor crystallinity

2007 ◽  
Vol 61 (2) ◽  
Author(s):  
Z. Mikulová ◽  
P. Čuba ◽  
J. Balabánová ◽  
T. Rojka ◽  
F. Kovanda ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Treatment ◽  
Layered Double Hydroxide ◽  
Mixed Oxides ◽  
Slight Effect ◽  
Total Oxidation ◽  
Volatile Organic ◽  
Double Hydroxide ◽  
Short Time ◽  
Oxidation Of Ethanol

AbstractThe effect of hydrothermal treatment on properties (crystallinity, porous structure, reducibility, acidity, basicity, and catalytic activity and selectivity in toluene and ethanol total oxidation) of Ni—Al layered double hydroxide precursors and related mixed oxides was examined. The hydrothermal treatment increased considerably both the content of crystalline phase and LDH crystallite size. On the other hand, only a slight effect of the precursor hydrothermal treatment on crystallinity of the related Ni—Al mixed oxides obtained by calcination at 450°C was observed. The reducibility of NiO particles appeared to be hindered considerably compared to the reducibility of pure NiO. Catalytic activity of the Ni—Al mixed oxides prepared from the precursors hydrothermally treated for a short time (4 h) was the highest. The highest amount of acetaldehyde formed during the total oxidation of ethanol, i.e. the worst selectivity was found for the calcined Ni—Al LDH without hydrothermal treatment.

Sign in / Sign up

Export Citation Format

Share Document