Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica

Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica

Porous nanosilica material was synthesized using tetraethyl orthosilicate as the silica source and ethanol as solvent under basic condition. The product was characterized by a number of techniques, including single point BET nitrogen adsorption, field emission scanning electron microscope (FESEM) an...

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Main Authors: Tan, Suat Hian, Nurul Ain, Ismail
Format: Article
Language:English
Published: Elsevier Ltd 2018
Subjects:
Q Science (General)
QC Physics
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/23737/
http://umpir.ump.edu.my/id/eprint/23737/
http://umpir.ump.edu.my/id/eprint/23737/
http://umpir.ump.edu.my/id/eprint/23737/7/Isotherm%20and%20Kinetic%20Studies1.pdf
id ump-23737
recordtype eprints
spelling ump-237372019-01-21T07:22:42Z http://umpir.ump.edu.my/id/eprint/23737/ Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica Tan, Suat Hian Nurul Ain, Ismail Q Science (General) QC Physics T Technology (General) Porous nanosilica material was synthesized using tetraethyl orthosilicate as the silica source and ethanol as solvent under basic condition. The product was characterized by a number of techniques, including single point BET nitrogen adsorption, field emission scanning electron microscope (FESEM) and point of zero charge (pHPZC) by mass titration. Results of the studies confirmed the porous structures of the nanoparticles. The adsorption capacity of L-phenylalanine under optimized condition of pH 5.37 with 0.1 mol/L concentrations of L-phenylalanine and 2 hour contact time by using 40 mg of silica nanoparticles is 748.9 μg/g. Equilibrium data were modeled using the Langmuir and the Freundlich isotherms and both models fit well with the experimental data which suggest chemisorption and physisorption reaction. For kinetic studies, the pseudo-second-order equation was the best-fit model for describing the adsorption process. Elsevier Ltd 2018 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23737/7/Isotherm%20and%20Kinetic%20Studies1.pdf Tan, Suat Hian and Nurul Ain, Ismail (2018) Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica. Materials Today: Proceedings, 5 (1 Part 3). pp. 3193-3201. ISSN 2214-7853 https://doi.org/10.1016/j.matpr.2018.01.128 https://doi.org/10.1016/j.matpr.2018.01.128
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic Q Science (General)
QC Physics
T Technology (General)
spellingShingle Q Science (General)
QC Physics
T Technology (General)
Tan, Suat Hian
Nurul Ain, Ismail
Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica
description Porous nanosilica material was synthesized using tetraethyl orthosilicate as the silica source and ethanol as solvent under basic condition. The product was characterized by a number of techniques, including single point BET nitrogen adsorption, field emission scanning electron microscope (FESEM) and point of zero charge (pHPZC) by mass titration. Results of the studies confirmed the porous structures of the nanoparticles. The adsorption capacity of L-phenylalanine under optimized condition of pH 5.37 with 0.1 mol/L concentrations of L-phenylalanine and 2 hour contact time by using 40 mg of silica nanoparticles is 748.9 μg/g. Equilibrium data were modeled using the Langmuir and the Freundlich isotherms and both models fit well with the experimental data which suggest chemisorption and physisorption reaction. For kinetic studies, the pseudo-second-order equation was the best-fit model for describing the adsorption process.
format Article
author Tan, Suat Hian
Nurul Ain, Ismail
author_facet Tan, Suat Hian
Nurul Ain, Ismail
author_sort Tan, Suat Hian
title Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica
title_short Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica
title_full Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica
title_fullStr Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica
title_full_unstemmed Isotherm and Kinetic Studies of L-Phenylalanine Adsorption onto Porous Nanosilica
title_sort isotherm and kinetic studies of l-phenylalanine adsorption onto porous nanosilica
publisher Elsevier Ltd
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/23737/
http://umpir.ump.edu.my/id/eprint/23737/
http://umpir.ump.edu.my/id/eprint/23737/
http://umpir.ump.edu.my/id/eprint/23737/7/Isotherm%20and%20Kinetic%20Studies1.pdf
first_indexed 2023-09-18T22:35:41Z
last_indexed 2023-09-18T22:35:41Z
_version_ 1777416579404791808

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