Interaction and detection of formaldehyde on pristine and doped boron nitride nano-cage: DFT calculations
Ammar, H.Y.; Eid, Kh.M.; H.M. Badran;
Abstract
The density functional theory (DFT) at B3LYP/6−31 g(d) level of calculations is utilized to examine the effect of
doping and co-doping as well as CH2O adsorption on the structural and electronic properties of boron nitride
nano-cages. The adsorption properties of CH2O are analyzed in terms of adsorption energies (Eads), charge
transfer, the electrostatic potential (ESP), and the density of states (DOS). Our results show that the CH2O is
chemically adsorbed via its oxygen atom on the boron and beryllium sites of pristine and doped as well as codoped
boron nitride nano-cages. The Eads was -0.402 eV for the pristine B12N12 nano-cage, while the doping
enhances the Eads to be -0.981, -1.219, and -1.138 eV for doped BeB11N12, CB11N12, and co-doped Be2B10N12
nano-cages, respectively. The interaction between the CH2O molecule and the considered nano-cages depends on
the ESP around the adsorbing sites. In addition, the interaction between the CH2O molecule and the nano-cages
undergoes by the donation-back donation mechanism. The adsorption of the CH2O molecule reduces the HOMOLUMO
gap for the pristine B12N12 by 49 % and for the doped for CB11N12 nano-cage by 22 %, meanwhile, the
most decrease is 55 % recorded for the co-doped C2B11N11 nano-cage. Therefore, the adsorption of CH2O affected
the electrical conductivity for the pristine and doped as well as co-doped BN nano-cages. The present results
proposing that the considered doped boron nitride nano-cages could be a promising material for CH2O gas
removal and detection.
doping and co-doping as well as CH2O adsorption on the structural and electronic properties of boron nitride
nano-cages. The adsorption properties of CH2O are analyzed in terms of adsorption energies (Eads), charge
transfer, the electrostatic potential (ESP), and the density of states (DOS). Our results show that the CH2O is
chemically adsorbed via its oxygen atom on the boron and beryllium sites of pristine and doped as well as codoped
boron nitride nano-cages. The Eads was -0.402 eV for the pristine B12N12 nano-cage, while the doping
enhances the Eads to be -0.981, -1.219, and -1.138 eV for doped BeB11N12, CB11N12, and co-doped Be2B10N12
nano-cages, respectively. The interaction between the CH2O molecule and the considered nano-cages depends on
the ESP around the adsorbing sites. In addition, the interaction between the CH2O molecule and the nano-cages
undergoes by the donation-back donation mechanism. The adsorption of the CH2O molecule reduces the HOMOLUMO
gap for the pristine B12N12 by 49 % and for the doped for CB11N12 nano-cage by 22 %, meanwhile, the
most decrease is 55 % recorded for the co-doped C2B11N11 nano-cage. Therefore, the adsorption of CH2O affected
the electrical conductivity for the pristine and doped as well as co-doped BN nano-cages. The present results
proposing that the considered doped boron nitride nano-cages could be a promising material for CH2O gas
removal and detection.
Other data
Title | Interaction and detection of formaldehyde on pristine and doped boron nitride nano-cage: DFT calculations | Authors | Ammar, H.Y.; Eid, Kh.M.; H.M. Badran | Keywords | DFT; Boron nitride; Formaldehyde; Nano-cage; Doping; Adsorption | Issue Date | Dec-2020 | Publisher | ELSEVIER | Journal | Materials Today Communications | Volume | 25 | Start page | 101408 | ISSN | 23524928 | DOI | 10.1016/j.mtcomm.2020.101408 |
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