A facile synthesis of MgAl/layered double hydroxides from aluminum wastes

Társila S. Silva; Erica P. Fernandes; Meththika Vithanage; Simoni M.P. Meneghetti; Lucas Meili

doi:10.1016/j.matlet.2022.132624

A facile synthesis of MgAl/layered double hydroxides from aluminum wastes

Társila S. Silva, Erica P. Fernandes, Meththika Vithanage, Simoni M.P. Meneghetti, Lucas Meili

Institute of Agriculture

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

This work aimed to study the synthesis of Mg/Al layered double hydroxides (LDH) from aluminum residues. LDH was produced by co-precipitation and hydrothermal methods using Al(OH)₃ synthesized from aluminum residue. It was possible to confirm the formation of LDH, with an increase in crystallinity for the hydrothermal synthesis. The FTIR indicates no influence regarding the Al(OH)₃ origin (synthesized or commercial). N₂ adsorption/desorption isotherms indicate a mesoporous structure with non-rigid aggregates of plate-shaped particles creating slit pores of varying shapes and sizes. The synthesized materials presented surface area ranging from 27.66 to 96.08 m²/g and pore diameter between 20 and 500 Å. Finally, it can be affirmed that LDHs were satisfactorily synthesized using aluminum residue as a source of aluminum hydroxide.

Original language	English
Article number	132624
Journal	Materials Letters
Volume	324
DOIs	https://doi.org/10.1016/j.matlet.2022.132624
Publication status	Published - 1 Oct 2022

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10.1016/j.matlet.2022.132624

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title = "A facile synthesis of MgAl/layered double hydroxides from aluminum wastes",

abstract = "This work aimed to study the synthesis of Mg/Al layered double hydroxides (LDH) from aluminum residues. LDH was produced by co-precipitation and hydrothermal methods using Al(OH)3 synthesized from aluminum residue. It was possible to confirm the formation of LDH, with an increase in crystallinity for the hydrothermal synthesis. The FTIR indicates no influence regarding the Al(OH)3 origin (synthesized or commercial). N2 adsorption/desorption isotherms indicate a mesoporous structure with non-rigid aggregates of plate-shaped particles creating slit pores of varying shapes and sizes. The synthesized materials presented surface area ranging from 27.66 to 96.08 m2/g and pore diameter between 20 and 500 {\AA}. Finally, it can be affirmed that LDHs were satisfactorily synthesized using aluminum residue as a source of aluminum hydroxide.",

keywords = "Aluminum residues, Characterization, Hydrotalcite, Synthetic clays",

author = "Silva, {T{\'a}rsila S.} and Fernandes, {Erica P.} and Meththika Vithanage and Meneghetti, {Simoni M.P.} and Lucas Meili",

note = "Funding Information: The authors thank the Brazilian funding agencies: CNPq, CAPES, FINEP, and FAPEAL. Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

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doi = "10.1016/j.matlet.2022.132624",

language = "English",

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journal = "Materials Letters",

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T1 - A facile synthesis of MgAl/layered double hydroxides from aluminum wastes

AU - Silva, Társila S.

AU - Fernandes, Erica P.

AU - Vithanage, Meththika

AU - Meneghetti, Simoni M.P.

AU - Meili, Lucas

PY - 2022/10/1

Y1 - 2022/10/1

N2 - This work aimed to study the synthesis of Mg/Al layered double hydroxides (LDH) from aluminum residues. LDH was produced by co-precipitation and hydrothermal methods using Al(OH)3 synthesized from aluminum residue. It was possible to confirm the formation of LDH, with an increase in crystallinity for the hydrothermal synthesis. The FTIR indicates no influence regarding the Al(OH)3 origin (synthesized or commercial). N2 adsorption/desorption isotherms indicate a mesoporous structure with non-rigid aggregates of plate-shaped particles creating slit pores of varying shapes and sizes. The synthesized materials presented surface area ranging from 27.66 to 96.08 m2/g and pore diameter between 20 and 500 Å. Finally, it can be affirmed that LDHs were satisfactorily synthesized using aluminum residue as a source of aluminum hydroxide.

AB - This work aimed to study the synthesis of Mg/Al layered double hydroxides (LDH) from aluminum residues. LDH was produced by co-precipitation and hydrothermal methods using Al(OH)3 synthesized from aluminum residue. It was possible to confirm the formation of LDH, with an increase in crystallinity for the hydrothermal synthesis. The FTIR indicates no influence regarding the Al(OH)3 origin (synthesized or commercial). N2 adsorption/desorption isotherms indicate a mesoporous structure with non-rigid aggregates of plate-shaped particles creating slit pores of varying shapes and sizes. The synthesized materials presented surface area ranging from 27.66 to 96.08 m2/g and pore diameter between 20 and 500 Å. Finally, it can be affirmed that LDHs were satisfactorily synthesized using aluminum residue as a source of aluminum hydroxide.

KW - Aluminum residues

KW - Characterization

KW - Hydrotalcite

KW - Synthetic clays

UR - http://www.scopus.com/inward/record.url?scp=85132344913&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2022.132624

DO - 10.1016/j.matlet.2022.132624

M3 - Article

AN - SCOPUS:85132344913

VL - 324

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

M1 - 132624

ER -

A facile synthesis of MgAl/layered double hydroxides from aluminum wastes

Abstract

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