Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison

Layered double hydroxide (LDH) exhibits a remarkable trait referred to as the 'memory effect,' demonstrating its capacity to reconstruct its layered structure from calcined oxides through hydrothermal treatment. Its uniqueness has garnered significant interest from researchers in both indu...

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Published in:Pure and Applied Chemistry
Main Author: Kamal N.A.; Pungot N.H.; Che Soh S.K.; Ahmad Tajuddin N.
Format: Article
Language:English
Published: Walter de Gruyter GmbH 2024
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192438109&doi=10.1515%2fpac-2024-0014&partnerID=40&md5=066cb0d92177d55a48a82fd7e363eb78
id 2-s2.0-85192438109
spelling 2-s2.0-85192438109
Kamal N.A.; Pungot N.H.; Che Soh S.K.; Ahmad Tajuddin N.
Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
2024
Pure and Applied Chemistry
96
11
10.1515/pac-2024-0014
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192438109&doi=10.1515%2fpac-2024-0014&partnerID=40&md5=066cb0d92177d55a48a82fd7e363eb78
Layered double hydroxide (LDH) exhibits a remarkable trait referred to as the 'memory effect,' demonstrating its capacity to reconstruct its layered structure from calcined oxides through hydrothermal treatment. Its uniqueness has garnered significant interest from researchers in both industrial and academic domains. Various methods have been utilized to synthesize LDH but most LDH studies still utilize alkali precipitants which might taint the final LDH product. Thus, in this study, layered double hydroxides involving MgAl/NiAl/ZnAl were synthesized via an alkali-free hydrothermal approach in which the formed precipitates of LDH were thermally destroyed via calcination at 450 °C before undergoing a rehydration treatment at 110 °C for 24 h to restore its original structure. Particularly, the physiochemical properties of MgAl/NiAl/ZnAl LDH have been undertaken by multiple techniques such as Powder X-ray Diffraction (PXRD), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), Field Emission Scanning Electron Microscope (FESEM) and Fourier-transform infrared spectroscopy (FTIR). The resultant products exhibited exceptional crystallinity, accompanied by notably larger crystallite sizes and crystallinity index, particularly post-hydrothermal treatment. Among the fresh and calcined products studied, those subjected to HTM (4:1) treatment demonstrated the highest specific surface area and crystallinity surpassing both the fresh and calcined samples. In essence, this research showcased how utilizing the hydrothermal approach resulted in the most substantial increase in crystallite size and specific surface area. © 2024 IUPAC & De Gruyter.
Walter de Gruyter GmbH
334545
English
Article

author Kamal N.A.; Pungot N.H.; Che Soh S.K.; Ahmad Tajuddin N.
spellingShingle Kamal N.A.; Pungot N.H.; Che Soh S.K.; Ahmad Tajuddin N.
Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
author_facet Kamal N.A.; Pungot N.H.; Che Soh S.K.; Ahmad Tajuddin N.
author_sort Kamal N.A.; Pungot N.H.; Che Soh S.K.; Ahmad Tajuddin N.
title Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
title_short Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
title_full Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
title_fullStr Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
title_full_unstemmed Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
title_sort Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: A physiochemical comparison
publishDate 2024
container_title Pure and Applied Chemistry
container_volume 96
container_issue 11
doi_str_mv 10.1515/pac-2024-0014
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192438109&doi=10.1515%2fpac-2024-0014&partnerID=40&md5=066cb0d92177d55a48a82fd7e363eb78
description Layered double hydroxide (LDH) exhibits a remarkable trait referred to as the 'memory effect,' demonstrating its capacity to reconstruct its layered structure from calcined oxides through hydrothermal treatment. Its uniqueness has garnered significant interest from researchers in both industrial and academic domains. Various methods have been utilized to synthesize LDH but most LDH studies still utilize alkali precipitants which might taint the final LDH product. Thus, in this study, layered double hydroxides involving MgAl/NiAl/ZnAl were synthesized via an alkali-free hydrothermal approach in which the formed precipitates of LDH were thermally destroyed via calcination at 450 °C before undergoing a rehydration treatment at 110 °C for 24 h to restore its original structure. Particularly, the physiochemical properties of MgAl/NiAl/ZnAl LDH have been undertaken by multiple techniques such as Powder X-ray Diffraction (PXRD), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), Field Emission Scanning Electron Microscope (FESEM) and Fourier-transform infrared spectroscopy (FTIR). The resultant products exhibited exceptional crystallinity, accompanied by notably larger crystallite sizes and crystallinity index, particularly post-hydrothermal treatment. Among the fresh and calcined products studied, those subjected to HTM (4:1) treatment demonstrated the highest specific surface area and crystallinity surpassing both the fresh and calcined samples. In essence, this research showcased how utilizing the hydrothermal approach resulted in the most substantial increase in crystallite size and specific surface area. © 2024 IUPAC & De Gruyter.
publisher Walter de Gruyter GmbH
issn 334545
language English
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