Preparation of functionalized porous nano-γ-Al2O3 powders employing colophony extract

Ángela B. Sifontes; Brenda Gutierrez; Andrea Mónaco; Andreina Yanez; Yraida Díaz; Franklin J. Méndez; Ligia Llovera; Edgar Cañizales; Joaquín L. Brito

doi:10.1016/j.btre.2014.07.001

Preparation of functionalized porous nano-γ-Al₂O₃ powders employing colophony extract

Ángela B. Sifontes
, Brenda Gutierrez
, Andrea Mónaco
, Andreina Yanez
, Yraida Díaz
, Franklin J. Méndez
, Ligia Llovera
, Edgar Cañizales
, Joaquín L. Brito

Instituto Venezolano de Investigaciones Científicas
Petróleos de Venezuela, S.A.

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

81 Scopus citations

Abstract

This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)_x (OH)_y(O₂CR)_z]_n as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmitewas obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N₂ physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm.

Original language	English
Pages (from-to)	21-29
Number of pages	9
Journal	Biotechnology Reports
Volume	4
Issue number	1
DOIs	https://doi.org/10.1016/j.btre.2014.07.001
State	Published - 1 Dec 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND.

Keywords

Colophony/rosin
Green synthesis
Nanoparticles
Porous ceramic

Access to Document

10.1016/j.btre.2014.07.001

Cite this

@article{a9563ef6a77b4fbe8bdef4df57959aee,

title = "Preparation of functionalized porous nano-γ-Al2O3 powders employing colophony extract",

abstract = "This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)x (OH)y(O2CR)z]n as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmitewas obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N2 physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm.",

keywords = "Colophony/rosin, Green synthesis, Nanoparticles, Porous ceramic",

author = "Sifontes, \{{\'A}ngela B.\} and Brenda Gutierrez and Andrea M{\'o}naco and Andreina Yanez and Yraida D{\'i}az and M{\'e}ndez, \{Franklin J.\} and Ligia Llovera and Edgar Ca{\~n}izales and Brito, \{Joaqu{\'i}n L.\}",

note = "Publisher Copyright: {\textcopyright} 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND.",

year = "2014",

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doi = "10.1016/j.btre.2014.07.001",

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T1 - Preparation of functionalized porous nano-γ-Al2O3 powders employing colophony extract

AU - Sifontes, Ángela B.

AU - Gutierrez, Brenda

AU - Mónaco, Andrea

AU - Yanez, Andreina

AU - Díaz, Yraida

AU - Méndez, Franklin J.

AU - Llovera, Ligia

AU - Cañizales, Edgar

AU - Brito, Joaquín L.

PY - 2014/12/1

Y1 - 2014/12/1

N2 - This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)x (OH)y(O2CR)z]n as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmitewas obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N2 physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm.

AB - This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)x (OH)y(O2CR)z]n as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmitewas obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N2 physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm.

KW - Colophony/rosin

KW - Green synthesis

KW - Nanoparticles

KW - Porous ceramic

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DO - 10.1016/j.btre.2014.07.001

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JO - Biotechnology Reports

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