Fabrication of nickel-iron layered double hydroxides using nickel plating wastewater via electrocoagulation, and its use for efficient dye removal

2021 ◽  
Vol 335 ◽  
pp. 116246
Author(s):  
Jinhua Ou ◽  
Jiaojiao Yan ◽  
Tao Xu ◽  
Zhongshan Jiang ◽  
Hong Tan ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Dye Removal ◽  
Nickel Plating ◽  
Nickel Iron ◽  
Double Hydroxides ◽  
Plating Wastewater

Congo red and direct yellow dye removal from aqueous solution by Zn/Cr layered double hydroxides

2018 ◽  
Author(s):  
Bakri Rio Rahayu ◽  
Tarmizi Taher ◽  
Poedji Loekitowati Hariani ◽  
Aldes Lesbani
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxides ◽  
Congo Red ◽  
Dye Removal ◽  
Double Hydroxides

A highly efficient and durable water splitting system: platinum sub-nanocluster functionalized nickel–iron layered double hydroxide as the cathode and hierarchical nickel–iron selenide as the anode

2019 ◽  
Vol 7 (6) ◽  
pp. 2831-2837 ◽  
Author(s):  
Qing Yan ◽  
Peng Yan ◽  
Tong Wei ◽  
Guiling Wang ◽  
Kui Cheng ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Nickel Iron ◽  
Iron Selenide ◽  
Highly Efficient ◽  
Double Hydroxide ◽  
Double Hydroxides ◽  
Splitting System

A highly-efficient water splitting device is assembled with the platinum sub-nanoclusters functionalized nickel iron layered double hydroxides and hierarchical nickel iron selenides.

In situ confined synthesis of molybdenum oxide decorated nickel–iron alloy nanosheets from MoO42− intercalated layered double hydroxides for the oxygen evolution reaction

2017 ◽  
Vol 5 (1) ◽  
pp. 87-91 ◽  
Author(s):  
Chao Xie ◽  
Yanyong Wang ◽  
Kui Hu ◽  
Li Tao ◽  
Xiaobing Huang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Molybdenum Oxide ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Iron Alloy ◽  
Nickel Iron ◽  
Nickel Iron Alloy ◽  
Double Hydroxides

This work reports molybdenum oxide decorated NiFe alloy nanosheets with high OER activity by reducing MoO42− intercalated nickel–iron layered double hydroxides (LDHs).

scholarly journals Polyoxometallic chemistry towards all-in-one layered double hydroxides for boosting oxygen evolution electrocatalysis

2021 ◽  
Author(s):  
Zhengyang Cai ◽  
Ping Wang ◽  
Ya Yan ◽  
Jiangwei Zhang ◽  
Xianying Wang
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxides ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Theoretical Data ◽  
Water Electrolysis ◽  
Active Species ◽  
Nickel Iron ◽  
Double Hydroxides

Abstract Nickel-iron based layered double hydroxides (NiFe LDH) have attracted tremendous research and industrial interests for oxygen evolution reaction electrocatalysis (OER). However, methodologies on simultaneous multi-regulations remain scarce. Herein, we report a versatile polyoxometallic acids (POMs) etching approach for ingeniously designing NiFe LDH, including morphological nanolayers tailoring, reconfiguration of Fe3+ and α-Ni(OH)2 active species, creating multiple vacancies of Ni, Fe and O and manufacturing interlayered POM polyanionic clusters as surface kinetic accelerators. Our experimental and theoretical data reveal that the key influencing factors are simultaneously controlled, resulting in synergistical enhancement with electrocatalytic OER activity of η10 = 206 mV, stability (negligible change of η500 for 24 h), and turnover frequency value (TOFFe, mol) of 2.03 s− 1. To elucidate the evolution, we derive an empirical formula to quantitatively identifying the key performance-determining factors, coinciding with the work and most of literature data. The expression offers an opportunity for first and fast reliability on materials screening. Moreover, the electrocatalyst is further produced on a large scale with low cost and high performance, demonstrating its feasibility of promising configuration of NiFe LDH-PMo12(+) ‖ Ni@NiFe LDH(-) for practical anion-exchange membrane (AEM)-electrode-stack cells water electrolysis.

LAYERED DOUBLE HYDROXIDES AS ADSORBENTS FOR ANIONIC DYE REMOVAL FROM AQUEOUS SOLUTIONS

2015 ◽  
Vol 14 (2) ◽  
pp. 381-388 ◽  
Author(s):  
Marcel Ionel Popa ◽  
Maria Celina Alexandrica ◽  
Mihaela Silion ◽  
Doina Hritcu
Keyword(s):  
Aqueous Solutions ◽  
Layered Double Hydroxides ◽  
Dye Removal ◽  
Anionic Dye ◽  
Double Hydroxides
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