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

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

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

scholarly journals Mechanistic Insight of Biochar-layered Double Hydroxide Composite for Efficient Removal of Aqueous Pb(II) and Cu(II)

2021 ◽  
Author(s):  
Xinyue Su ◽  
Yan Chen ◽  
Yanfei Li ◽  
Jing Li ◽  
Wen Song ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Layered Double Hydroxide ◽  
Adsorption Process ◽  
Efficient Removal ◽  
Mineral Precipitation ◽  
Adsorption Mechanisms ◽  
Mechanistic Insight ◽  
Heavy Metal Wastewater ◽  
Pseudo Second Order ◽  
Double Hydroxide

Abstract To explore the heavy metal adsorption mechanisms by biochar-based materials, MgAl-layered double hydroxide (MgAl-LDH) was loaded on a commercial coconut shell biochar (BC) to obtain the composite (BC-LDH) for adsorptive decontamination of Pb(II) and Cu(II) in water. The removal capacities of BC-LDH (294 and 38.6 mg/g) was higher than BC (13.3 and 11.4 mg/g) and LDH (126 and 22.7 mg/g) for aqueous Pb(II) and Cu(II). The pseudo-second-order equation and the Langmuir model could better illustrate the adsorption process, respectively. The interaction mechanisms between BC-LDH and heavy metals were classified as mineral precipitation (Qpre), cation exchange and isomorphic replacement (Qexc), electrostatic attraction (Qele), and surface complexation (Qcom) according to the characterization results. The quantitative analysis indicated that the contributions of the above mechanisms of BC-LDH for Pb(II) and Cu(II) followed the order of Qpre > Qele > Qexc and Qpre > Qexc > Qele, respectively. Compared with BC, the Qpre increased and Qele decreased significantly, certified the combination of BC and LDH provided a kind of viable composite in heavy metal wastewater treatment.

scholarly journals Adsorption Study of Malachite Green Removal from Aqueous Solution Using Cu/M3+ (M3+=Al, Cr) Layered Double Hydroxide

2020 ◽  
Vol 10 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Neza Rahayu Palapa ◽  
Risfidian Mohadi ◽  
Addy Rachmat ◽  
Aldes Lesbani
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxide ◽  
Malachite Green ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Base Interaction ◽  
Adsorption Study ◽  
Order Kinetic Model ◽  
Endothermic Process ◽  
Double Hydroxide

Layered double hydroxide (LDH) Cu/Al and Cu/Cr had been used as adsorbent of malachite green (MG) in aqueous solution. The properties of Cu/Al and Cu/Cr LDHs were analyzed by X-ray diffraction, surface area analysis (BET) and FTIR spectroscopy. Adsorption study of MG was achieved at pH 9. Adsorption of MG follows the pseudo-second-order kinetic model. Langmuir isotherm was suitable for adsorption of MG on both LDH with a maximum adsorption capacity of 59.52 mg/g. The thermodynamic study indicated that the adsorption process is physisorption, spontaneous, and endothermic process.  Adsorption of MG onto LDHs involve the acid-base interaction between adsorbent and adsorbate.

Double-Confined Nickel Nanocatalyst Derived from Layered Double Hydroxide Precursor: Atomic Scale Insight into Microstructure Evolution

2016 ◽  
Vol 28 (17) ◽  
pp. 6296-6304 ◽  
Author(s):  
Qining Fan ◽  
Xuefeng Li ◽  
Zhixiang Yang ◽  
Jingjing Han ◽  
Sailong Xu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Microstructure Evolution ◽  
Atomic Scale ◽  
Double Hydroxide ◽  
Insight Into
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