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Li X, Sun K, Chen Y, Yuan Y. Study on the Gas-Chromic Character of Pd/TiO 2 for Fast Room-Temperature CO Detection. Molecules 2024; 29:3843. [PMID: 39202922 PMCID: PMC11357185 DOI: 10.3390/molecules29163843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 09/03/2024] Open
Abstract
As a widely used support, TiO2 has often been combined with Pd to form highly sensitive gas-chromic materials. Herein, we prepared a series of Pd/TiO2 catalysts with different Pd content (from 0.1 to 5 wt.%) by the impregnation method for their utilization in fast room-temperature CO detection. The detection was simply based on visible color change when the Pd/TiO2 was exposed to CO. The sample with 1 wt.% Pd/TiO2 presented an excellent CO gasochromic character, associated with a maximum chromatic aberration value of 90 before and after CO exposure. Systematic catalyst characterizations of XPS, FT-IR, CO-TPD, and N2 adsorption-desorption and density functional theory calculations for the CO adsorption and charge transfer over the Pd and PdO surfaces were further carried out. It was found that the interaction between CO and the Pd surface was strong, associated with a large adsorption energy of -1.99 eV and charge transfer of 0.196 e. The color change was caused by a reduction in Pd2+ to metallic Pd0 over the Pd/TiO2 surface after CO exposure.
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Affiliation(s)
- Xinbao Li
- College of Energy Environment and Safety Engineering, China Jiliang University, Hangzhou 310018, China
| | - Kai Sun
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China
| | - Ying Chen
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China
| | - Ye Yuan
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China
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2
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Taha A, Kadhim MM, Naser ST, Majdi A, Abdullaha SAH, Hachim SK, Abdulwahid Abdulhussain M, Mahdi Rheima A. A density functional theory study on the potential application of Ni and Co doped ZnO nanosheets as a carrier for ciclopirox anticancer drug. Comput Methods Biomech Biomed Engin 2024; 27:765-774. [PMID: 37781969 DOI: 10.1080/10255842.2023.2202294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/08/2023] [Indexed: 10/03/2023]
Abstract
The Ni and Co doping effect on the ciclopirox (CPX) drug delivery performance of a ZnO nanosheet (ZnO-NS) was investigated theoretically. Doping Ni and Co metals into the ZnO-NS increased the adsorption energy of CPX from -7.9 to -27.4 and -31.7 kcal/mol, respectively. The CPX adsorption reduced the ZnO-NS gap (Eg) from 3.81 to 3.46 eV, while the CPX adsorption reduced the Eg of the Ni- and Co-doped ZnO-NS from 2.74 and 2.68 eV to 1.87 and 1.71 eV, respectively. The CPX adsorption performance increased after doping process. A drug release mechanism was introduced in cancerous tissues based on the PH..
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Affiliation(s)
- Ali Taha
- Pharmacy College, Al-Farahidi University, Baghdad, Iraq
| | - Mustafa M Kadhim
- Department of Dentistry, Kut University College, Kut, Wasit, Iraq
| | | | - Ali Majdi
- Department of Building and Construction Techniques Engineering, Al- Mustaqbal University College, Hilla, Iraq
| | | | - Safa K Hachim
- College of technical engineering, The Islamic University, Najaf, Iraq
- Medical Laboratory Techniques Department, Al-Turath University College, Baghdad, Iraq
| | | | - Ahmed Mahdi Rheima
- Department of Chemistry, College of Science, Mustansiriyah University, Baghdad, Iraq
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3
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Cabrera-Tinoco H, Borja-Castro L, Valencia-Bedregal R, Perez-Carreño A, Lalupu-García A, Veliz-Quiñones I, Bustamante Dominguez AG, Barnes CHW, De Los Santos Valladares L. Pyridinic-N Coordination Effect on the Adsorption and Activation of CO 2 by Single Vacancy Iron-Doped Graphene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6703-6717. [PMID: 38498309 PMCID: PMC10993407 DOI: 10.1021/acs.langmuir.3c03327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/20/2024]
Abstract
Graphene doped with different transition metals has been recently proposed to adsorb CO2 and help reduce the greenhouse effect. Iron-doped graphene is one of the most promising candidates for this task, but there is still a lack of full understanding of the adsorption mechanism. In this work, we analyze the electronic structure, geometry, and charge redistribution during adsorption of CO2 molecules by single vacancy iron-doped graphene by DFT calculations using the general gradient approximation of Perdew, Burke, and Ernzernhof functional (PBE) and the van der Waals density functional (vdW). To understand the impact of the pyridinic-N coordination of the iron atom, we gradually replaced the neighboring carbon atoms by nitrogen atoms. The analysis indicates that chemisorption and physisorption occur when the molecule is adsorbed in the side-on and end-on orientation, respectively. Adsorption is stronger when pyridinic-N coordination increases, and the vdW functional describes the chemical interactions and adsorption energy differently in relation to PBE without significant structural changes. The development of the chemical interactions with the change of coordination in the system is further investigated in this work with crystal overlap Hamilton population (COHP) analysis.
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Affiliation(s)
| | - Luis Borja-Castro
- Laboratorio
de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149 Lima, Peru
| | - Renato Valencia-Bedregal
- Laboratorio
de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149 Lima, Peru
| | | | | | | | - Angel Guillermo Bustamante Dominguez
- Laboratorio
de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149 Lima, Peru
| | - Crispin H. W. Barnes
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J. J Thomson Av, Cambridge CB3 0H3, U.K.
| | - Luis De Los Santos Valladares
- Programa
de Pós-Graduação em Ciências de Materiais,
Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J. J Thomson Av, Cambridge CB3 0H3, U.K.
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4
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Li J, Fan X, Chen J, Shi G, Liu X. Enhancement of gas adsorption on transition metal ion-modified graphene using DFT calculations. J Mol Model 2024; 30:72. [PMID: 38366130 DOI: 10.1007/s00894-024-05872-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/06/2024] [Indexed: 02/18/2024]
Abstract
CONTEXT Graphene-based nanomaterial was widely used in gas sensors, detection, and separation. However, weak adsorption and low selectivity of the pristine graphene used for gas sensors are major problems. Here, using density functional theory (DFT) calculations, we reported the significant increase of four gas molecules (N2, CO2, C2H2, and C2H4) adsorption on the transition metal ion (Fe3+, Co2+, Ni2+)-modified graphene complex (Fe3+/Co2+/Ni2+-G) comparing to be absorbed on the pristine graphene (G). Moreover, the Co2+-G is suitable for the selective separation of C2H4/C2H2 due to the larger adsorption energy difference (8.5 kcal/mol) between them. The addition of transition metal ions also decreased the HOMO-LUMO gap of the systems, which benefits the enhancement of electrical conductivity. This suggests that the transition metal ion-modified graphene can be used to distinguish the different gas molecule's adsorption, facilitating the design of graphene-based gas sensors and selective separation. METHODS All the density functional theory (DFT) calculations were performed by B3LYP with the GD3 dispersion method using Gaussian 16 software. The basis set 6-31G(d) was used for C, H, O, and N atoms, and Lanl2DZ was used for transition metal ions (Fe3+, Co2+, Ni2+). The DOS analysis and energy decomposition analysis were performed using the Multiwfn program.
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Affiliation(s)
- Jie Li
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Xiaozhen Fan
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Junjie Chen
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Guosheng Shi
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Xing Liu
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China.
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5
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Aetizaz M, Ullah F, Sarfaraz S, Mahmood T, Ayub K. Robust and facile detection of formaldehyde through transition metals doped olympicene sensors: a step forward DFT investigation. RSC Adv 2023; 13:29231-29241. [PMID: 37809028 PMCID: PMC10551803 DOI: 10.1039/d3ra04019d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/21/2023] [Indexed: 10/10/2023] Open
Abstract
Formaldehyde, a volatile organic compound (VOC) released by building and decoration materials, has many applications in the chemical feedstock industry. Excessive release of formaldehyde can cause serious health issues, such as chest tightness, cough, cancer, and tissue damage. Therefore, detection of formaldehyde is required. Herein transition metal (Fe, Ni, and Pd) doped olympicene is evaluated as a gas sensor for the detection of formaldehyde. The performance of the designed electrochemical sensor is evaluated through interaction energy, natural bond orbital (NBO) non-covalent interaction (NCI), electron density differences (EDD), electrostatic potential (ESP), quantum theory of atom in molecule (QTAIM), frontier molecular orbital (FMO), and density of states (DOS) analysis. Interaction energies obtained at B3LYP-D3/def-2 TZVP level of theory shows that formaldehyde is physiosorbed over the surface of transition metal doped olympicene. The trend for interaction energy is OLY(Ni)/HCHO > OLY(Fe)/HCHO > OLY(Pd)/HCHO. The presence of non-covalent interactions is confirmed by the QTAIM and NCI analyses, while transfer of charges is confirmed by natural bond orbital analysis. The reduced density gradient (RDG) approach using noncovalent interaction (NCI) analysis demonstrates that electrostatic hydrogen bonding interactions prevail in the complexes. Recovery time is calculated to check the reusability of the sensor. This study may provide a deep insight for the designing of highly efficient electrochemical sensor against formaldehyde with transition metals doped on olympicene.
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Affiliation(s)
- Muhammad Aetizaz
- Department of Chemistry, COMSATS University Abbottabad Campus KPK 22060 Pakistan +92-992-383591
| | - Faizan Ullah
- Department of Chemistry, COMSATS University Abbottabad Campus KPK 22060 Pakistan +92-992-383591
| | - Sehrish Sarfaraz
- Department of Chemistry, COMSATS University Abbottabad Campus KPK 22060 Pakistan +92-992-383591
| | - Tariq Mahmood
- Department of Chemistry, College of Science, University of Bahrain 1051 Bahrain
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Abbottabad Campus KPK 22060 Pakistan +92-992-383591
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Tachikawa H, Izumi Y, Iyama T, Abe S, Watanabe I. Aluminum-Doping Effects on the Electronic States of Graphene Nanoflake: Diffusion and Hydrogen Storage Mechanism. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2046. [PMID: 37513057 PMCID: PMC10384847 DOI: 10.3390/nano13142046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023]
Abstract
Graphene nanoflakes are widely utilized as high-performance molecular devices due to their chemical stability and light weight. In the present study, the interaction of aluminum species with graphene nanoflake (denoted as GR-Al) has been investigated using the density functional theory (DFT) method to elucidate the doping effects of Al metal on the electronic states of GR. The mechanisms of the diffusion of Al on GR surface and the hydrogen storage of GR-Al were also investigated in detail. The neutral, mono-, di-, and trivalent Al ions (expressed as Al, Al+, Al2+, and Al3+, respectively) were examined as the Al species. The DFT calculations showed that the charge transfer interaction between Al and GR plays an important role in the binding of Al species to GR. The diffusion path of Al on GR surface was determined: the barrier heights of Al diffusion were calculated to be 2.1-2.8 kcal mol-1, which are lower than Li+ on GR (7.2 kcal/mol). The possibility of using GR-Al for hydrogen storage was also discussed on the basis of the theoretical results.
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Affiliation(s)
- Hiroto Tachikawa
- Department of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yoshiki Izumi
- Department of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Tetsuji Iyama
- Department of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Shigeaki Abe
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan
| | - Ikuya Watanabe
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan
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7
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Kalwar BA, Fangzong W, Soomro AM, Naich MR, Saeed MH, Ahmed I. Highly sensitive work function type room temperature gas sensor based on Ti doped hBN monolayer for sensing CO 2, CO, H 2S, HF and NO. A DFT study. RSC Adv 2022; 12:34185-34199. [PMID: 36545633 PMCID: PMC9709776 DOI: 10.1039/d2ra06307g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/14/2022] [Indexed: 12/02/2022] Open
Abstract
The adsorptions of toxic gas molecules (CO2, CO, H2S, HF and NO) on pristine and Ti atom doped hexagonal boron nitride (hBN) monolayer are investigated by density functional theory. Weak physisorption of gas molecules on pristine hBN results in micro seconds recovery time, limiting the gas sensing ability of pristine hBN. However Ti atom doping significantly enhances the adsorption ability. Ti atom best fits to be doped at B vacancy in hBN with lowest formation energy (-3.241 eV). Structural analysis reveals that structures of gas molecules change after being chemisorbed to Ti doped hBN monolayer. Partial density of states analysis illustrates strong hybridization among Ti-3d, gas-2p and BN-2p orbitals, moreover Bader charge transfer indicates that gas molecules act as charge acceptors. Ti doped hBN monolayer undergoes transition from semiconductor to narrow band semiconductor with adsorption of CO2, H2S and NO, while with CO and HF adsorption it transforms into metal. The change of conductance of Ti doped hBN monolayer in response to adsorption of gas molecules reveals its high sensitivity, however it is not selective to HF and NO gases. The recovery times of gas molecules desorption from monolayer are too long at ambient condition however it can significantly be shortened by annealing at elevated temperature with UV exposure. Since recovery time for NO removal from monolayer is still very long at 500 K with UV exposure, Ti doped hBN monolayer is more suitable as a scavenger of NO gas rather than as a gas sensor. It is thus predicted that Ti doped hBN monolayer can be a work-function type CO2, CO, H2S and HF sensor and NO gas scavenger.
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Affiliation(s)
- Basheer Ahmed Kalwar
- College of Electrical Engineering and New Energy, China Three Gorges University (CTGU) Yichang 443002 China
- Department of Electrical Engineering, Mehran University of Engineering and Technology, SZAB Campus Khairpur Mirs 66020 Pakistan
| | - Wang Fangzong
- College of Electrical Engineering and New Energy, China Three Gorges University (CTGU) Yichang 443002 China
| | - Amir Mahmood Soomro
- Department of Electrical Engineering, Mehran University of Engineering and Technology Jamshoro 76062 Pakistan
| | - Muhammad Rafique Naich
- Department of Electronic Engineering, Mehran University of Engineering and Technology, SZAB Campus Khairpur Mirs 66020 Pakistan
- School of Energy Science and Engineering, Harbin Institute of Technology 92 West Dazhi Street Harbin 150001 China
| | - Muhammad Hammad Saeed
- College of Electrical Engineering and New Energy, China Three Gorges University (CTGU) Yichang 443002 China
| | - Irfan Ahmed
- Department of Electrical Engineering, Mehran University of Engineering and Technology, SZAB Campus Khairpur Mirs 66020 Pakistan
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8
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Wang K, Luo X. Transition-Metal-Doped SiP 2 Monolayer for Effective CO 2 Capture: A Density Functional Theory Study. ACS OMEGA 2022; 7:36848-36855. [PMID: 36278103 PMCID: PMC9583316 DOI: 10.1021/acsomega.2c05532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Two-dimensional materials have exhibited great potential in mitigating climate change through sensing and capturing carbon dioxide. The interaction of CO2 on orthorhombic silicon diphosphide remains unexplored in spite of its interesting properties such as high carrier mobility, piezoelectricity, and mechanical stability. Here, using density functional theory, the adsorption of CO2 on pristine and Ti-, V-, and Cr-doped monolayer SiP2 is investigated. Doped systems exhibited significantly stronger adsorption (-0.268 to -0.396 eV) than pristine SiP2 (-0.017 to -0.031 eV) and have the possibility of synthesis with low defect formation energies. Our results on adsorption energy, band structure, partial density of states, and charge transfer conclude that titanium- and vanadium-doped SiP2 monolayers would be promising materials for CO2 capture and removal.
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Noise Spectrum as a Source of Information in Gas Sensors Based on Liquid-Phase Exfoliated Graphene. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10060224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Surfaces of adsorption-based gas sensors are often heterogeneous, with adsorption sites that differ in their affinities for gas particle binding. Knowing adsorption/desorption energies, surface densities and the relative abundance of sites of different types is important, because these parameters impact sensor sensitivity and selectivity, and are relevant for revealing the response-generating mechanisms. We show that the analysis of the noise of adsorption-based sensors can be used to study gas adsorption on heterogeneous sensing surfaces, which is applicable to industrially important liquid-phase exfoliated (LPE) graphene. Our results for CO2 adsorption on an LPE graphene surface, with different types of adsorption sites on graphene flake edges and basal planes, show that the noise spectrum data can be used to characterize such surfaces in terms of parameters that determine the sensing properties of the adsorbing material. Notably, the spectrum characteristic frequencies are an unambiguous indicator of the relative abundance of different types of adsorption sites on the sensing surface and their surface densities. We also demonstrate that spectrum features indicate the fraction of the binding sites that are already occupied by another gas species. The presented study can be applied to the design and production of graphene and other sensing surfaces with an optimal sensing performance.
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10
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Ab Initio Study of the Interaction of a Graphene Surface Decorated with a Metal-Doped C 30 with Carbon Monoxide, Carbon Dioxide, Methane, and Ozone. Int J Mol Sci 2022; 23:ijms23094933. [PMID: 35563323 PMCID: PMC9105178 DOI: 10.3390/ijms23094933] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 01/22/2023] Open
Abstract
Using DFT simulations, we studied the interaction of a semifullerene C30 and a defected graphene layer. We obtained the C30 chemisorbs on the surface. We also found the adsorbed C30 chemisorbs, Li, Ti, or Pt, on its concave part. Thus, the resulting system (C30-graphene) is a graphene layer decorated with a metal-doped C30. The adsorption of the molecules depends on the shape of the base of the semifullerene and the dopant metal. The CO molecule adsorbed without dissociation in all cases. When the bottom is a pentagon, the adsorption occurs only with Ti as the dopant. It also adsorbs for a hexagon as the bottom with Pt as the dopant. The carbon dioxide molecule adsorbs in the two cases of base shape but only when lithium is the dopant. The adsorption occurs without dissociation. The ozone molecule adsorbs on both surfaces. When Ti or Pt are dopants, we found that the O3 molecule always dissociates into an oxygen molecule and an oxygen atom. When Li is the dopant, the O3 molecule adsorbs without dissociation. Methane did not adsorb in any case. Calculating the recovery time at 300 K, we found that the system may be a sensor in several instances.
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11
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Sarfaraz S, Yar M, Ans M, Gilani MA, Ludwig R, Hashmi MA, Hussain M, Muhammad S, Ayub K. Computational investigation of a covalent triazine framework (CTF-0) as an efficient electrochemical sensor. RSC Adv 2022; 12:3909-3923. [PMID: 35425404 PMCID: PMC8981076 DOI: 10.1039/d1ra08738j] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/15/2022] [Indexed: 12/12/2022] Open
Abstract
In the current study, a covalent triazine framework (CTF-0) was evaluated as an electrochemical sensor against industrial pollutants i.e., O3, NO, SO2, SO3, and CO2. The deep understanding of analytes@CTF-0 complexation was acquired by interaction energy, NCI, QTAIM, SAPT0, EDD, NBO and FMO analyses. The outcome of interaction energy analyses clearly indicates that all the analytes are physiosorbed onto the CTF-0 surface. NCI and QTAIM analysis were employed to understand the nature of the non-covalent interactions. Furthermore, SAPT0 analysis revealed that dispersion has the highest contribution towards total SAPT0 energy. In NBO analysis, the highest charge transfer is obtained in the case of SO3@CTF-0 (−0.167 e−) whereas the lowest charge transfer is observed in CO2@CTF-0. The results of NBO charge transfer are also verified through EDD analysis. FMO analysis revealed that the highest reduction in the HOMO–LUMO energy gap is observed in the case of O3 (5.03 eV) adsorption onto the CTF-0 surface, which indicates the sensitivity of CTF-0 for O3 analytes. We strongly believe that these results might be productive for experimentalists to tailor a highly sensitive electrochemical sensor using covalent triazine-based frameworks (CTFs). In the current study, a covalent triazine framework (CTF-0) was evaluated as an electrochemical sensor against industrial pollutants i.e., O3, NO, SO2, SO3, and CO2.![]()
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Affiliation(s)
- Sehrish Sarfaraz
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, Pakistan, 22060
| | - Muhammad Yar
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, Pakistan, 22060
| | - Muhammad Ans
- Department of Chemistry, University of Agriculture Faisalabad, 38000, Faisalabad, Pakistan
| | - Mazhar Amjad Gilani
- Department of Chemistry, COMSATS University Islamabad, Lahore Campus, 54600, Pakistan
| | - Ralf Ludwig
- Universität Rostock, Institut für Chemie, Abteilung für Physikalische Chemie, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Muhammad Ali Hashmi
- Department of Chemistry, Division of Science & Technology, University of Education, 54770 Lahore, Pakistan
| | - Masroor Hussain
- Department of Data Science, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, KPK, Pakistan
| | - Shabbir Muhammad
- Department of Chemistry, College of Science, King Khalid University, P. O. Box 9004, Abha, 61413, Saudi Arabia
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, Pakistan, 22060
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12
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Ramirez-de-Arellano JM, Canales M, Magaña LF. Carbon Nanostructures Doped with Transition Metals for Pollutant Gas Adsorption Systems. Molecules 2021; 26:5346. [PMID: 34500783 PMCID: PMC8434604 DOI: 10.3390/molecules26175346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 12/15/2022] Open
Abstract
The adsorption of molecules usually increases capacity and/or strength with the doping of surfaces with transition metals; furthermore, carbon nanostructures, i.e., graphene, carbon nanotubes, fullerenes, graphdiyne, etc., have a large specific area for gas adsorption. This review focuses on the reports (experimental or theoretical) of systems using these structures decorated with transition metals for mainly pollutant molecules' adsorption. Furthermore, we aim to present the expanding application of nanomaterials on environmental problems, mainly over the last 10 years. We found a wide range of pollutant molecules investigated for adsorption in carbon nanostructures, including greenhouse gases, anticancer drugs, and chemical warfare agents, among many more.
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Affiliation(s)
- J. M. Ramirez-de-Arellano
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501, Monterrey 64849, Mexico;
| | - M. Canales
- Universidad Autónoma Metropolitana Unidad Azcapotzalco, Av. San Pablo Xalpa No. 180, Colonia Reynosa Tamaulipas, Delegación Azcapotzalco, Ciudad de México 02200, Mexico;
| | - L. F. Magaña
- Instituto de Física, Universidad Nacional Autónoma de Mexico, Apartado Postal 20-364, Ciudad de México 01000, Mexico
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13
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Cruz-Martínez H, Rojas-Chávez H, Montejo-Alvaro F, Peña-Castañeda YA, Matadamas-Ortiz PT, Medina DI. Recent Developments in Graphene-Based Toxic Gas Sensors: A Theoretical Overview. SENSORS (BASEL, SWITZERLAND) 2021; 21:1992. [PMID: 33799914 PMCID: PMC8001952 DOI: 10.3390/s21061992] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 12/18/2022]
Abstract
Detecting and monitoring air-polluting gases such as carbon monoxide (CO), nitrogen oxides (NOx), and sulfur oxides (SOx) are critical, as these gases are toxic and harm the ecosystem and the human health. Therefore, it is necessary to design high-performance gas sensors for toxic gas detection. In this sense, graphene-based materials are promising for use as toxic gas sensors. In addition to experimental investigations, first-principle methods have enabled graphene-based sensor design to progress by leaps and bounds. This review presents a detailed analysis of graphene-based toxic gas sensors by using first-principle methods. The modifications made to graphene, such as decorated, defective, and doped to improve the detection of NOx, SOx, and CO toxic gases are revised and analyzed. In general, graphene decorated with transition metals, defective graphene, and doped graphene have a higher sensibility toward the toxic gases than pristine graphene. This review shows the relevance of using first-principle studies for the design of novel and efficient toxic gas sensors. The theoretical results obtained to date can greatly help experimental groups to design novel and efficient graphene-based toxic gas sensors.
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Affiliation(s)
- Heriberto Cruz-Martínez
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico; (H.C.-M.); (F.M.-A.)
| | - Hugo Rojas-Chávez
- Tecnológico Nacional de México, Instituto Tecnológico de Tláhuac II, Camino Real 625, Tláhuac, Ciudad de México 13508, Mexico;
| | - Fernando Montejo-Alvaro
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico; (H.C.-M.); (F.M.-A.)
| | - Yesica A. Peña-Castañeda
- Colegio de Ciencia y Tecnología, Universidad Autónoma de la Ciudad de México, Av. Fray Servando Teresa de Mier 92, Cuauhtémoc, Ciudad de México 06080, Mexico;
| | - Pastor T. Matadamas-Ortiz
- Instituto Politécnico Nacional, CIIDIR-OAXACA, Hornos No. 1003, Noche Buena, Santa Cruz Xoxocotlán 71230, Mexico
| | - Dora I. Medina
- Tecnologico de Monterrey, School of Engineering and Sciences, Atizapan de Zaragoza, Estado de México 52926, Mexico
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