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Louis H, Mathias GE, Ikenyirimba OJ, Unimuke TO, Etiese D, Adeyinka AS. Metal-Doped Al 12N 12X (X = Na, Mg, K) Nanoclusters as Nanosensors for Carboplatin: Insight from First-Principles Computation. J Phys Chem B 2022; 126:5066-5080. [PMID: 35786897 DOI: 10.1021/acs.jpcb.2c03671] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This theoretical study focuses on the adsorption, reactivity, topological analysis, and sensing behavior of metal-doped (K, Na, and Mg) aluminum nitride (Al12N12) nanoclusters using the first-principle density functional theory (DFT). All quantum chemical reactivity, natural bond orbital (NBO), free energies (ΔG, ΔH), and sensor parameters were investigated using the ωB97XD functional with the 6-311++G(d,p) basis set. The trapping of carboplatin (cbp) onto the surfaces of doped Al12N12 was studied using four functionals PBE0-D3, M062X-D3, ωB97XD, and B3LYP-D3 at the 6-311++G(d,p) basis set. Overall, the substantial change in the energy gap of the surfaces after the adsorption process affects the work function, field emission, and the electrical conductivity of the doped clusters, hence making the studied surfaces a better sensor material for detecting carboplatin. Higher free energies of solvation were obtained in polar solvents compared to nonpolar solvents. Moreover, negative solvation energies and adsorption energies were obtained, which therefore shows that the engineered surfaces are highly efficient in trapping carboplatin. The relatively strong adsorption energies show that the mechanism of adsorption is by chemisorption, and K- and Na-doped metal clusters acted as better sensors for carboplatin. Also, the topological analysis in comparison to previous studies shows that the nanoclusters exhibited very high stability with regard to their relevant binding energies and hydrogen bond interactions.
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Affiliation(s)
- Hitler Louis
- Computational and Bio-Simulation Research Group, University of Calabar, Calabar P.M.B 1115, Nigeria
- Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar P.M.B 1115, Nigeria
| | - Gideon E Mathias
- Computational and Bio-Simulation Research Group, University of Calabar, Calabar P.M.B 1115, Nigeria
- Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar P.M.B 1115, Nigeria
| | - Onyinye J Ikenyirimba
- Computational and Bio-Simulation Research Group, University of Calabar, Calabar P.M.B 1115, Nigeria
- Department of Chemistry Education, Alex Ekwueme Federal University, Ebonyi State, Abakaliki P.M.B 1010, Nigeria
| | - Tomsmith O Unimuke
- Computational and Bio-Simulation Research Group, University of Calabar, Calabar P.M.B 1115, Nigeria
- Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar P.M.B 1115, Nigeria
| | - Daniel Etiese
- Computational and Bio-Simulation Research Group, University of Calabar, Calabar P.M.B 1115, Nigeria
- Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar P.M.B 1115, Nigeria
| | - Adedapo S Adeyinka
- Department of Chemical Sciences, University of Johannesburg, Johannesburg 2006, South Africa
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Janjua MRSA. Prediction and Understanding: Quantum Chemical Framework of Transition Metals Enclosed in a B 12N 12 Inorganic Nanocluster for Adsorption and Removal of DDT from the Environment. Inorg Chem 2021; 60:10837-10847. [PMID: 34231358 DOI: 10.1021/acs.inorgchem.1c01760] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Emission of harmful pollutants from different sources into the environment is a major problem nowadays. Organochlorine pesticides such as DDT (C14H9Cl5) are toxic, bio-accumulative, and regularly seen in water bodies, air, biota, and sediments. Various systems can be considered for minimizing the DDT (dichloro-diphenyl-trichloroethane) pollution. However, due to simplicity and acceptability, the adsorption method is the most popular method. Adsorption is gradually employed for the removal of both organic and inorganic pollutants found in soil and water. Thus, in this regard, efforts are being made to design inorganic nanoclusters (B12N12) encapsulated with late transition metals (Zn, Cu, Ni, Co, and Fe) for effective adsorption of DDT. In this context, detailed thermodynamics and quantum chemical study of all the designed systems have been carried out with the aid of density functional theory. The adsorption energy of DDT on metals cocooned in a nanocluster is found to be higher, and better adsorption energy values as compared to that of the pristine B12N12-DDT nanocluster have been reported. Further, analysis of the dipole moment, frontier molecular orbitals, molecular electrostatic potential plots, energy band gap, QNBO, and Fermi level suggested that the late-transition-metal-encapsulated inorganic B12N12 nanoclusters are efficient candidates for effective DDT adsorption. Lastly, the study of global descriptors of reactivity confirmed that the designed quantum mechanical systems are quite stable in nature with a good electrophilic index. Therefore, the recommendation has been made for these novel kinds of systems to deal with the development of DDT sensors.
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