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Shan K, Dastan D, Zhang L, Yi ZZ, Zhai F, He Y, Huang M, Jafari A, Mohammed MKA, Zamani-Meymian MR, Farzaneh A. Ti-Doped AgNbO 3 as Novel Dense Diffusion Barriers of Limiting Current Oxygen Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38330073 DOI: 10.1021/acs.langmuir.3c03394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The oxygen sensors with limiting current derived from a dense diffusion barrier have an excellent advantage of detecting oxygen partial pressure by controlling the ratio of air and fuel in combustion environments. Therefore, AgNb1-xTixO3-δ (wherein x varies from 0.1 to 0.3) was prepared as such a dense diffusion barrier layer for sensor application. Among the investigated compositions as a new condensed barrier for the diffusion of sensors, AgNb1-xTixO3-δ (x = 0.1, 0.2, 0.3) exhibits oxygen ionic conductivities from 1.37 × 10-4 to 5.78 × 10-3 S·cm-1 in the temperature range of 600-900 °C and outstanding stable electrochemical properties. Herein, we employ these novel materials as dense diffusion barriers and 8 mol % zirconia stabilized by yttria (8YSZ) as a solid-state electrolyte for the fabrication of the oxygen sensors with limiting current. We observed a direct connection between the limiting current and oxygen content within the interval of 0.5-5.0 mol % at 800 °C and a low working voltage. The increase of Ti-doping amount in AgNbO3 accelerates the sensing response to oxygen gas and promotes the service life of the sensor.
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Affiliation(s)
- Ke Shan
- School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199, China
| | - Davoud Dastan
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York450850, United States
| | - Lili Zhang
- School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199, China
| | - Zhong-Zhou Yi
- School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199, China
| | - Fengrui Zhai
- School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199, China
| | - Yunlong He
- School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199, China
| | - Mengyang Huang
- School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199, China
| | - Azadeh Jafari
- Faculty of Applied Sciences, Simon Fraser University, MSE 4176, 250-13450 102nd Ave, Surrey, BC V3T 0A3 Canada
| | - Mustafa K A Mohammed
- College of Remote Sensing and Geophysics, Al-Karkh University of Science, Baghdad 10011, Iraq
| | | | - Azadeh Farzaneh
- Department of Physics, Faculty of Science, University of Isfahan, Isfahan 81746-73441, Iran
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Khan J, Bibi S, Naseem I, Ahmed S, Hafeez M, Ahmed K, Altaf F, Dastan D, Syed A, Jabir MS, Mohammed MKA, Tao L. Ternary Metal (Cu-Ni-Zn) Oxide Nanocomposite via an Environmentally Friendly Route. ACS OMEGA 2023; 8:21032-21041. [PMID: 37323397 PMCID: PMC10268284 DOI: 10.1021/acsomega.3c01896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023]
Abstract
In this work, we report the engineering of sub-30 nm nanocomposites of CuO/ZnO/NiO by using Dodonaea viscosa leaf extract. Zinc sulfate, nickel chloride, and copper sulfate were used as salt precursors, and isopropyl alcohol and water were used as solvents. The growth of nanocomposites was investigated by varying the concentrations of precursors and surfactants at pH 12. The as-prepared composites were characterized by XRD analysis and found to have CuO (monoclinic), ZnO (hexagonal primitive), and NiO (cubic) phases with an average size of 29 nm. FTIR analysis was performed to investigate the mode of fundamental bonding vibrations of the as-prepared nanocomposites. The vibrations of the prepared CuO/ZnO/NiO nanocomposite were detected at 760 and 628 cm-1, respectively. The optical bandgap energy of the CuO/NiO/ZnO nanocomposite was 3.08 eV. Ultraviolet-visible spectroscopy was performed to calculate the band gap by the Tauc approach. Antimicrobial and antioxidant activities of the synthesized CuO/NiO/ZnO nanocomposite were investigated. It was found that the antimicrobial activity of the synthesized nanocomposite increases with an increase in the concentration. The antioxidant activity of the synthesized nanocomposite was examined by using both ABTS and DPPH assays. The obtained results show an IC50 value of 0.110 for the synthesized nanocomposite compared to DPPH and ABTS (0.512), which is smaller than that of ascorbic acid (IC50 = 1.047). Such a low IC50 value ensures that the antioxidant potential of the nanocomposite is higher than that of ascorbic acid, which in turn shows their excellent antioxidant activity against both DPPH and ABTS.
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Affiliation(s)
- Jahanzeb Khan
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur, Azad Kashmir 10250, Pakistan
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Saiqa Bibi
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Irsa Naseem
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Shakeel Ahmed
- College
of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Muhammad Hafeez
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Khalil Ahmed
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur, Azad Kashmir 10250, Pakistan
| | - Faizah Altaf
- Department
of Environmental Sciences, Women University
of Azad Kashmir, Bagh 12500, Pakistan
| | - Davoud Dastan
- Department
of Materials Science and Engineering, Cornell
University, Ithaca, New York 14850, United States
| | - Asad Syed
- Department
of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Majid S. Jabir
- Department
of Applied Sciences, University of Technology-Iraq, 10011 Baghdad, Iraq
| | - Mustafa K. A. Mohammed
- College
of Remote Sensing and Geophysics, Al-Karkh
University of Science, Al-Karkh Side, Haifa St. Hamada Palace, Baghdad 10011, Iraq
| | - Lin Tao
- School
of Chemical Engineering, University of Science
and Technology Liaoning, Anshan, Liaoning CN 114051, P. R. China
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Zhu P, Dastan D, Liu L, Wu L, Shi Z, Chu QQ, Altaf F, Mohammed MK. Surface wettability of various phases of titania thin films: Atomic-scale simulation studies. J Mol Graph Model 2023; 118:108335. [DOI: 10.1016/j.jmgm.2022.108335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 08/28/2022] [Accepted: 09/14/2022] [Indexed: 10/14/2022]
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Timoumi A, Dastan D, Jamoussi B, Essalah K, Alsalmi OH, Bouguila N, Abassi H, Chakroun R, Shi Z, Ţălu Ş. Experimental and Theoretical Studies on Optical Properties of Tetra(Imidazole) of Palladium (II) Phthalocyanine. Molecules 2022; 27:molecules27196151. [PMID: 36234682 PMCID: PMC9573583 DOI: 10.3390/molecules27196151] [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: 08/16/2022] [Revised: 09/06/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
In this work, the optical properties of tetra(imidazole) of palladium phthalocyanine (PdPc(Im)4) in solution form and thin films on glass and fluorine-doped tin oxide (FTO) substrates were investigated via the thermal evaporation technique. The optical band gap was evaluated by ultraviolet–visible spectroscopy (UV-Vis). The energy band gap values were determined based on the Tauc graph. In addition, time-dependent density functional theory (TD-DFT) was used to simulate the UV-Vis absorption spectrum of the (PdPc(Im)4) molecule in the Dimethyl Sulfoxide (DMSO) solution phase. A good correlation was found between the DFT results and the experimental optical results. The band gap values between the experimental and DFT-simulated values are presented. The energy band gap of (PdPc(Im)4) obtained from the DFT calculations showed that it can be efficiently regulated. Frontier molecular orbitals and molecular electrostatic potentials were also proposed in this work. The surface study of the layers deposited on FTO was considered by atomic force microscopy (AFM) and scanning electron microscopy (SEM), and the results demonstrated good homogeneity covering the entire surface. The SEM image showed a homogeneous distribution of the grains with some spherical or rod-shaped structures and no agglomeration structures. This work rendered a strategy for regulating the energy band gap and compared the experimental observations obtained with theoretical studies, which provides a fundamental insight into the optical band for optoelectronic and thin-film solar cells.
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Affiliation(s)
- Abdelmajid Timoumi
- Department of Physics, Faculty of Applied Science, Umm AL-Qura University, Makkah 715, Saudi Arabia
- Correspondence: (A.T.); (D.D.); (Ş.Ţ.)
| | - Davoud Dastan
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14850, USA
- Correspondence: (A.T.); (D.D.); (Ş.Ţ.)
| | - Bassem Jamoussi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Khaled Essalah
- Institut Préparatoire aux Etudes d’Ingénieurs d’El Manar, Unité de Recherche en Sciences Fondamentales et Didactique, Equipe de Chimie Théorique et Réactivité (UR14ES10), Université Tunis El Manar, Tunis 2092, Tunisia
| | - Omar Hammed Alsalmi
- Department of Physics, Faculty of Applied Science, Umm AL-Qura University, Makkah 715, Saudi Arabia
| | - Noureddine Bouguila
- Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à L’Environnement, Faculté des Sciences, Université de Gabès, Cité Erriadh, Zrig, Gabès 6072, Tunisia
| | - Henda Abassi
- Laboratoire de Caracterisations, Applications et Modélisation de Matériaux, Faculte des Sciences de Tunis, Université Tunis El Manar, Campus Universitaire, Tunis 1068, Tunisia
| | - Radhouane Chakroun
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Zhicheng Shi
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Constantin Daicoviciu St., 400020 Cluj-Napoca, Romania
- Correspondence: (A.T.); (D.D.); (Ş.Ţ.)
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Ren HT, Pan Z, Cao WB, Li TT, Lou CW, Lin JH, Han X. Facile synthesis of Ti3C2 MXene-modified Bi2.15WO6 nanosheets with enhanced reactivity for photocatalytic reduction of Cr(VI). ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Structures, electronic and magnetic properties of the FexNy (x = 1–4, y = 1–4) adsorbed graphene. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04823-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rabiei H, Farhang Dehghan S, Montazer M, Khaloo SS, Koozekonan AG. UV protection properties of workwear fabrics coated with TiO2 nanoparticles. Front Public Health 2022; 10:929095. [PMID: 35979463 PMCID: PMC9376596 DOI: 10.3389/fpubh.2022.929095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/12/2022] [Indexed: 11/21/2022] Open
Abstract
The main purpose of this study was to evaluate the ultraviolet protective factor (UPF) of fabrics coated with TiO2 nanoparticles made using an in-situ synthesis method and more accurately assess the intrinsic properties of the textile. The cotton-polyester twill fabric (70–30%) (246.67 g/m2) was coated in-situ with TiO2 nanoparticles. In-situ coating is conducted in 4 steps; washing the fabrics, preparation of nanoparticles, injecting the nanoparticles into fabrics, and drying the fabric after coating. The scanning electron microscope (SEM) and X-ray diffraction (XRD), FTIR spectrometer, dynamic light scattering (DLS) and UV-Vis spectrophotometer were used to analyse the data of the coating and UPF results. Also, four standards such as ASTM D737, ISIRI 8332, ISIRI 4199, and ISIRI 567 were used for analyzing the intrinsic properties of a textile. The results of SEM, XRD and DLS altogether confirmed the in-situ formation of nanoparticles onto textile fibers. Moreover, the UPF value of the uncoated and coated fabrics was 3.67 and 55.82, respectively. It was shown that the in-situ deposition of TiO2 nanoparticles on fabric can provide adequate protection against UVR. Also, the results of analyzing the intrinsic properties of the textile showed that there were no significant differences in the intrinsic properties between the coated and uncoated fabrics. Based on the results, it can be concluded that the UV protective properties of workwear fabrics can be improved by coating TiO2 nanoparticles on them without any effect on the cooling effect of perspiration evaporation.
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Affiliation(s)
- Hadiseh Rabiei
- Student Research Committee, Department of Occupational Health and Safety at Work, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Farhang Dehghan
- Environmental and Occupational Hazards Control Research Center, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Somayeh Farhang Dehghan
| | - Majid Montazer
- Department of Textile Engineering, Amirkabir University of Technology, Functional Fibrous Structures and Environmental Enhancement (FFSEE), Amirkabir Nanotechnoloy Research Institute (ANTRI), Tehran, Iran
| | - Shokooh Sadat Khaloo
- Department of Health, Safety, and Environment (HSE), School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aysa Ghasemi Koozekonan
- Department of Health and Safety at Work, School of Public Health and Safety, Shahid Beheshti Medical Sciences, Tehran, Iran
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