Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface

We study the interaction between benzene, toluene, ethylbenzene and xylene (BTEX) molecules with ZnO(100) surface by means of density functional theory-based calculations. We find that these interactions result in the physical adsorptions of BTEX gases with adsorption distances larger than 2 Å. Thes...

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Main Authors: Nugraha Nugraha, Adhitya Gandaryus Saputro, Mohammad Kemal Agusta, Fiki Taufik Akbar, Aditya Dimas Pramudya
Format: Article
Language:English
Published: Jenderal Soedirman University 2019-06-01
Series:Molekul
Subjects:
Online Access:https://ojs.jmolekul.com/ojs/index.php/jm/article/view/501
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author Nugraha Nugraha
Adhitya Gandaryus Saputro
Mohammad Kemal Agusta
Fiki Taufik Akbar
Aditya Dimas Pramudya
author_facet Nugraha Nugraha
Adhitya Gandaryus Saputro
Mohammad Kemal Agusta
Fiki Taufik Akbar
Aditya Dimas Pramudya
author_sort Nugraha Nugraha
collection DOAJ
description We study the interaction between benzene, toluene, ethylbenzene and xylene (BTEX) molecules with ZnO(100) surface by means of density functional theory-based calculations. We find that these interactions result in the physical adsorptions of BTEX gases with adsorption distances larger than 2 Å. These adsorptions are governed by the van der Waals interaction instead of the covalent interaction. We also find that the trend of the strength of BTX adsorptions on ZnO(100) surface  is in line with the experimental trend of sensitivity of ZnO material towards BTX gases (benzene < tolune < xylene). We explain this relation by using one of the sensing mechanism within the ionosorption model. By using this relation, we also predict that the response of ZnO towards ethylbenzene will be similar to the response towards toluene since these two molecules have similar adsorption energies on ZnO(100) surface.
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spelling doaj.art-47a5b0ccc91a40f0a6d61b6fe015d9952022-12-21T18:56:07ZengJenderal Soedirman UniversityMolekul1907-97612019-06-01141374710.20884/1.jm.2019.14.1.501268Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) SurfaceNugraha Nugraha0Adhitya Gandaryus Saputro1Mohammad Kemal Agusta2Fiki Taufik Akbar3Aditya Dimas Pramudya4Advanced Functional Materials Research Group, Institut Teknologi BandungAdvanced Functional Materials Research Group, Institut Teknologi BandungAdvanced Functional Materials Research Group, Institut Teknologi BandungTheoretical High Energy Physics and Instrumentations Research Group, Institut Teknologi BandungEcology Research Group, Institut Teknologi BandungWe study the interaction between benzene, toluene, ethylbenzene and xylene (BTEX) molecules with ZnO(100) surface by means of density functional theory-based calculations. We find that these interactions result in the physical adsorptions of BTEX gases with adsorption distances larger than 2 Å. These adsorptions are governed by the van der Waals interaction instead of the covalent interaction. We also find that the trend of the strength of BTX adsorptions on ZnO(100) surface  is in line with the experimental trend of sensitivity of ZnO material towards BTX gases (benzene < tolune < xylene). We explain this relation by using one of the sensing mechanism within the ionosorption model. By using this relation, we also predict that the response of ZnO towards ethylbenzene will be similar to the response towards toluene since these two molecules have similar adsorption energies on ZnO(100) surface.https://ojs.jmolekul.com/ojs/index.php/jm/article/view/501adsorptionbenzenetolueneethylbenzenexylenedensity functional theoryZnO(100) surface
spellingShingle Nugraha Nugraha
Adhitya Gandaryus Saputro
Mohammad Kemal Agusta
Fiki Taufik Akbar
Aditya Dimas Pramudya
Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface
Molekul
adsorption
benzene
toluene
ethylbenzene
xylene
density functional theory
ZnO(100) surface
title Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface
title_full Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface
title_fullStr Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface
title_full_unstemmed Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface
title_short Density Functional Study on Benzene, Toluene, Ethylbenzene and Xylene Adsorptions on ZnO(100) Surface
title_sort density functional study on benzene toluene ethylbenzene and xylene adsorptions on zno 100 surface
topic adsorption
benzene
toluene
ethylbenzene
xylene
density functional theory
ZnO(100) surface
url https://ojs.jmolekul.com/ojs/index.php/jm/article/view/501
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AT mohammadkemalagusta densityfunctionalstudyonbenzenetolueneethylbenzeneandxyleneadsorptionsonzno100surface
AT fikitaufikakbar densityfunctionalstudyonbenzenetolueneethylbenzeneandxyleneadsorptionsonzno100surface
AT adityadimaspramudya densityfunctionalstudyonbenzenetolueneethylbenzeneandxyleneadsorptionsonzno100surface