Metal-organo-zinc oxide materials: Investigation on the structural, optical and electrical properties

Bouazizi, Nabil; Ajala, F.; Bettaibi, A.; Khelil, M.; Benghnia, A.; Bargougui, R.; Louhichi, S.; Labiadh, Lazhar; Slama, Romdhane Ben; Chaouachi, Béchir; Khirouni, K.; Houas, Ammar; Azzouz, Abdelkrim

doi:10.1016/j.jallcom.2015.09.188

Cited by 28 publications

(9 citation statements)

References 52 publications

(43 reference statements)

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“…ZnO powders doped with Fe nanoparticles through an in situ dispersion method showed improved conductivity and capacitance as compared to undoped ZnO nanoparticles [31]. HMDA grafted and Fe nanoparticles doped ZnO nanoparticles showed excellent conductivity which was attributed to the formation of effective proton-conductivity on the surface of the ZnO as well as proton transfer between Fe nanoparticles [32]. Fe-doped TiO 2 nanoparticles displayed superior photocatalytic degradation of methylene blue dye, phenol and toxic organic compounds as compared to undoped TiO 2 under UV and visible light illumination [33][34][35].…”

Section: Introductionmentioning

confidence: 98%

Iron-Doped Titanium Dioxide Nanoparticles As Potential Scaffold for Hydrazine Chemical Sensor Applications

et al. 2020

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Herein, we report the fabrication of a modified glassy carbon electrode (GCE) with high-performance hydrazine sensor based on Fe-doped TiO 2 nanoparticles prepared via a facile and low-cost hydrothermal method. The structural morphology, crystalline, crystallite size, vibrational and scattering properties were examined through different characterization techniques, including FESEM, XRD, FTIR, UV-Vis, Raman and photoluminescence spectroscopy. FESEM analysis revealed the high-density synthesis of Fe-doped TiO 2 nanoparticles with the average diameter of 25 ± 5 nm. The average crystallite size of the synthesized nanoparticles was found to be around 14 nm. As-fabricated hydrazine chemical sensors exhibited 1.44 µA µM −1 cm −2 and 0.236 µM sensitivity and limit of detection (LOD), respectively. Linear dynamic ranged from 0.2 to 30 µM concentrations. Furthermore, the Fe-doped TiO 2 modified GCE showed a negligible inference behavior towards ascorbic acid, uric acid, glucose, SO 4 2− , NO 3 − , Pb 2+ and Ca 2+ ions on the hydrazine sensing performance. Thus, Fe-doped TiO 2 modified GCE can be efficiently used as an economical, easy to fabricate and selective sensing of hydrazine and its derivatives.

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Section: Introductionmentioning

confidence: 98%

Iron-Doped Titanium Dioxide Nanoparticles As Potential Scaffold for Hydrazine Chemical Sensor Applications

et al. 2020

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“…Furthermore, if the frequency increases both Z 0 and Z 00 decrease and above 10 5 Hz both values merge with X-axis. This result indicates suggested that there exists a relaxation phenomenon [54]. It is evident from the figures that the peak frequency shifts toward higher frequencies and could be attributed to the dependence of the relaxation process.…”

Section: Relaxation Phenomenonmentioning

confidence: 68%

Controlled synthesis and electrical conduction properties of anatase TiO2 nanoparticles via the polyol method

et al. 2016

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This paper reports the preparation and characterization of titanium dioxide nanoparticles (TiO 2 -NPs) with pure anatase phases using polyol synthesis process. The preparation state and the particle size are controlled by varying the synthesis parameters such as the precursor concentration, hydrolysis rate and the synthesis time. Nanoparticles were characterized by X-ray diffractometry, TEM, FT-IR spectroscopy and the measure of the complex impedance spectroscopy. Their physicochemical properties were investigated to optimize the synthesis conditions. FT-IR spectra exhibit broad peaks where anatase phases of TiO 2 demonstrate very sharp peaks. The structural characterization by XRD confirms that there is a formation of anatase TiO 2 -NPs phases at 550°C and the crystalline size is in the range of 19-25 nm. The crystallite size of the TiO 2 core decreases with the concentration of titanium tetrachloride TiCl 4 precursor. Electrical properties and relaxation phenomenon of the material were studied at several temperatures.

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“…The PA nanocomposites were showed two absorption bands at 306 and 377 nm. According to previous works, the UV-Vis absorption of the neat ZnO nanoparticles appeared between 300 and 400 nm [77]. Therefore, it can be said that this red shift have been due to the presence of ZnO nanoparticles.…”

Section: Characterization Of Pa/zno Nanocompositesmentioning

confidence: 78%

New nanocomposites based on polyamide containing imine groups reinforced with functionalized polyethyleneimine‐modified ZnO nanoparticles; fabrication, characterization and lead ion adsorption studies

2018

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New polyamide (PA)/ZnO nanocomposites were prepared using polyethyleneimine (PEI) surface‐modified ZnO nanoparticles (PSMZ) by solution mixing method. PSMZ was prepared via imine linkages between PEI and silane‐amine functionalized ZnO nanoparticles. Multifunctional PA containing imine groups was synthesized by direct polycondensation reaction and used as a polymer matrix. X‐ray diffraction (XRD) and field‐emission scanning electron microscopy results showed that the ZnO nanoparticles were uniformly distributed in the PA matrix. The UV–Vis spectra of the nanocomposites exhibited reduction in absorption intensities due to high interactions between functional groups of PSMZ and PA. The thermogravimetric analysis results exhibited that the temperature at 10 mass% loss (T10) increased from 314 to 352°C for PA nanocomposite containing 6 mass% of PSMZ, as well as enhancement of char residue compared with the neat PA. Also, the synthesized PA and corresponding nanocomposites were used as effective adsorbent for the lead ions removal from aqueous solution, which the results showed up to 100% removal efficiency. POLYM. COMPOS., 40:2602–2616, 2019. © 2018 Society of Plastics Engineers

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Metal-organo-zinc oxide materials: Investigation on the structural, optical and electrical properties

Cited by 28 publications

References 52 publications

Iron-Doped Titanium Dioxide Nanoparticles As Potential Scaffold for Hydrazine Chemical Sensor Applications

Iron-Doped Titanium Dioxide Nanoparticles As Potential Scaffold for Hydrazine Chemical Sensor Applications

Controlled synthesis and electrical conduction properties of anatase TiO2 nanoparticles via the polyol method

New nanocomposites based on polyamide containing imine groups reinforced with functionalized polyethyleneimine‐modified ZnO nanoparticles; fabrication, characterization and lead ion adsorption studies

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