Application of polyvinyl alcohol/polypropylene/zinc oxide nanocomposites as sensor: modeling approach

Badry, Rania; Fahmy, Alaa; Ibrahim, Asmaa; Elhaes, Hanan; Ibrahim, Medhat

doi:10.1007/s11082-020-02646-5

Cited by 14 publications

(2 citation statements)

References 39 publications

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“… Nickel oxide encapsulated polypyrrole H 2 O 2 Sensing ability in both gas and liquid with excellent sensing parameters like the limit of detection 0.073692 ppm in gas and 0.073649 ppm in the liquid [ 65 ] 9 Polyethylene and ZnS Hydrazine The efficient and high sensitivity of ∼ 89.3 µA cm − 2 µM with a detection limit of 1.07 µM [ 66 ] 10 Chitosan and dipeptide Ochratoxin A The linear range of 0.1–100 ng mL − 1 and detection limit of 0.03 ng mL − 1 [ 67 ] 11 ZnO. polyvinyl alcohol and polypropylene H 2 S Enhances the electronic characteristics for chemical sensing [ 68 ] …”

Section: Chemical Sensormentioning

confidence: 99%

Century Impact of Macromolecules for Advances of Sensing Sciences

Shukla

2022

Chemistry Africa

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Impact of macro molecular theory on the progress of sensing sciences and technology has been presented in the light of materials developments, advances in physical and chemical properties. The chronological advances in the properties of macromolecules have significantly improved the sensing performances towards gases, heavy metals, biomolecules, hydrocarbon, and energetic compounds in terms of unexplored sensing parameters, durability, and working lifetime. In this review article, efforts have been made to correlate the advances in structure and interactivity of macro-molecules with their sensing behavior and working performances. The significant findings on the macromolecules towards advancing the sensing sciences are highlighted with the suitable illustration and schemes to establish it as a potential “microanalytical technique” along with existing challenges. Graphical Abstract

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Section: Chemical Sensormentioning

confidence: 99%

Century Impact of Macromolecules for Advances of Sensing Sciences

Shukla

2022

Chemistry Africa

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“…Additionally, it is widely applied in cosmetics, pharmaceutics, food science, optoelectronics, agriculture fields [18][19][20] and transparent UV protection films [21]. Among these applications, ZnO nanostructures can be used to detect hydrogen sulphide(H2S) gas in the air [22]. Research has suggested that nanocomposites based on polymer/ metal oxides enhance the polymer's properties so far.…”

Section: Introductionmentioning

confidence: 99%

The Detection of NH3, H2S and HBr Gases by Carboxymethyl Cellulose Sodium / ZnO Nanocomposites: A Theoretical Study

Conference¹

2021

Egypt. J. Chem.

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Toxic gases, such as ammonia (NH3), hydrogen sulphide (H2S) and hydrogen bromide (HBr) gases, even at very low gas concentrations, have harmful effects on human health. Accordingly, environmental monitoring, industrial plants, automotive, air quality assurance technology, and various low-concentration gases must be reliably detected. The effect of NH3, H2S and HBr gases on the sensitivity of carboxymethyl cellulose sodium (CMC) nanocomposites has been studied theoretically using density functional theory (DFT) at B3LYP/Lanl2dz basis set. Total dipole moment (TDM), electronic band gap energy (ΔE) and molecular electrostatic potentials (MESPs) for CMC, CMC/ZnO and CMC/ZnO/ different gases are calculated. The results showed that the sensitivity of CMC increased due to the interaction with ZnO molecules through both complex and adsorb interactions, as TDM of CMC increased to35.1708 Debye and ΔE decreased to0.2645 eV. Also, TDM increased to 28.7687, 31.5937 and 32.8856 Debye upon the exposure of the CMC/ ZnO surface to NH3, H2S and HBr gases respectively. Additionally, MESP maps confirmed the results of the electronic properties where the sensitivity increased due to the increment in the dimer CMC electronegativity. Therefore, the proposed CMC/ ZnO structure could be used as a sensor for NH3, H2S and HBr gases.

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Enhancing the optical properties of chitosan, carboxymethyl cellulose, sodium alginate modified with nano metal oxide and graphene oxide

et al. 2022

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The solution casting method was utilized to synthesize nanocomposite lms of chitosan (Cs)/CuO, Cs/graphene oxide (GO), carboxymethyl cellulose (CMC)/TiO 2 , CMC/GO, sodium alginate (Na Alg)/TiO 2 , and Na-Alg/GO owing to their various applications. The in uence of CuO, TiO 2 and GO concentration on the optical properties of Cs, CMC and Na-Alg lms was studied by UV-Vis Spectroscopy. The absorbance of Cs, CMC and Na-Alg increased with increasing the ller content, thus re ecting the dependence of Cs, CMC, and Na-Alg properties on the nano ller content, and con rming the interactions between individual polymers and CuO, TiO 2 and GO nanoparticles. The obtained absorbance values were then used to calculate the absorption coe cient and, hence, the optical band gap values. The characteristic absorption bands of CuO and TiO 2 underwent a redshift by increasing the ller content. The results showed that the optical band gap of Cs, CMC, and Na-Alg decreased with ller content, and they possessed 1, 2 and 2 band gaps respectively. The obtained results recommended that Cs, CMC, and Na-Alg nanocomposites can be used in optoelectronic devices.

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Application of polyvinyl alcohol/polypropylene/zinc oxide nanocomposites as sensor: modeling approach

Cited by 14 publications

References 39 publications

Century Impact of Macromolecules for Advances of Sensing Sciences

Century Impact of Macromolecules for Advances of Sensing Sciences

The Detection of NH3, H2S and HBr Gases by Carboxymethyl Cellulose Sodium / ZnO Nanocomposites: A Theoretical Study

Enhancing the optical properties of chitosan, carboxymethyl cellulose, sodium alginate modified with nano metal oxide and graphene oxide

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