Formation and properties of cements prepared from zinc oxide and aqueous solutions of zinc nitrate

Synthesising zinc oxide nanoparticles to get certain specific characteristics to be applied in Enhanced oil recovery (EOR) is still challenging to date. In this work, zinc oxide (ZnO) nanoparticles were synthesised using the sol-gel method by dissolving zinc nitrate hexahydrate in nitric acid. The ZnO crystal and particles morphology and structure were determined using X-ray Diffractometer (XRD) and Field Emission Scanning Electron Microscope (FESEM). In this study, a microwave oven was used for annealing ZnO without insulating a sample in any casket. The results show that 30 and 40 minutes of annealing and stirring for 1 hour influenced the morphology and size of zinc oxide particles in nanoscale. These parameters could be tailored to generate a range of nanoparticle morphology (agglomerated nanoparticles in a corn-like morphology), a crystal size with the mean size of 70.5 and 74.9 nm and a main growth at the peak [10. EOR experiment were conducted by dispersing 0.10 wt% ZnO NPs in distilled water to form a ZnO nanofluid. Then the fluid was injected into the medium in the 3rd stage of the oil recovery to present EOR stage. It was found that ZnO nanofluid has the ability to extract 8% of the original oil in place (OOIP).

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New Epoxy Poly(dimethyl acrylamide) Polymer for the Dispersion of ZnO Nanoparticles

Advanced Science Engineering and Medicine ◽

10.1166/asem.2020.2683 ◽

2020 ◽

Vol 12 (10) ◽

pp. 1231-1235

Author(s):

V. Sorna Gowri ◽

Raj Kumar Sen ◽

Sunil Kumar Sanghi ◽

Avanish Kumar Srivastava

Keyword(s):

Zinc Oxide ◽

Polymer Matrix ◽

Zinc Oxide Nanoparticles ◽

Thermo Gravimetric Analysis ◽

Oxide Particle ◽

Zinc Nitrate ◽

Oxide Nanoparticles ◽

Gravimetric Analysis ◽

Good Thermal Stability ◽

Copolymer Composites

A series of novel Zinc Oxide (ZnO) copolymer composites films with different Zinc Oxide concentration were prepared through incorporation of pre-made Zinc Oxide particle in to copolymer epoxy poly(dimethyl acrylamide). The copolymer epoxy poly(dimethyl acrylamide) was synthesized by free radical polymerization to disperse the Zinc Oxide nanoparticles. The Zinc Oxide nanoparticles with the diameter of 19 nm–35 nm were synthesized from zinc nitrate via a wet chemical method. The aim of the work is to develop a new method/process/material for the dispersion of Zinc Oxide nanoparticles and testing the performance of these composites films. Thermo gravimetric analysis show that Zinc Oxide nanoparticles were successfully incorporated into the polymer matrix and the Zinc Oxide copolymer composites have a good thermal stability. The micro structural analysis also show newly synthesized polymer disperse the nanoparticles well as evidenced by Scanning Electron Microscopy (SEM) analysis. The uniformly dispersed Zinc Oxide nanoparticle in the polymer matrix and the particles almost remained in their original shape and size even after incorporation in the polymer matrix. Fourier transform infrared spectroscopy (FT-IR) shift of the copolymer adsorbed Zinc Oxide nanoparticles confirmed that polymer molecules chain was anchored on the surface of the nanoparticles.

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Prunus domestica dye extraction for fabrication of zinc oxide based dye-sensitized solar cells

BIBECHANA ◽

10.3126/bibechana.v13i0.13341 ◽

2015 ◽

Vol 13 ◽

pp. 23-28

Author(s):

Leela Pradhan Joshi

Keyword(s):

Zinc Oxide ◽

Solar Cells ◽

Short Circuit ◽

Dye Sensitized Solar Cells ◽

Short Circuit Current ◽

Zinc Nitrate ◽

Open Circuit ◽

Dye Sensitized ◽

Dye Extraction ◽

Sensitized Solar Cells

Aluminium doped Zinc Oxide (AZO) seed layers were deposited on Fluorine doped Tin Oxide (FTO) substrates using a spin coating technique. These were then immersed in growth solutions of zinc nitrate, hexamethylenetetramine and distilled water to develop nanoplates of Zinc Oxide (ZnO). The nanostructures of ZnO grown on FTO were studied using x-ray diffraction techniques. Dye-sensitized solar cells (DSSC) were fabricated using two prepared electrodes, one of dye-loaded zinc oxide and another that was platinum coated. The electrolyte used was potassium iodide iodine solution. The performance of the assembled DSCCs was tested by drawing an IV curve. The results showed that the short circuit current and open circuit voltages were about 10 microamperes and 270 millivolts respectively.BIBECHANA 13 (2016) 23-28

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A pectin/chitosan/zinc oxide nanocomposite for adsorption/photocatalytic remediation of carbamazepine in water samples

RSC Advances ◽

10.1039/d0ra08010a ◽

2020 ◽

Vol 10 (67) ◽

pp. 40697-40708

Author(s):

Olivia A. Attallah ◽

Mahmoud Rabee

Keyword(s):

Zinc Oxide ◽

Aqueous Solutions ◽

Water Samples ◽

Direct Sunlight

The present study investigates a synergistic adsorption/photodegradation technique catalyzed by a pectin/chitosan/zinc oxide (Pec/CS/ZnO) nanocomposite for the removal of carbamazepine (CBZ) in aqueous solutions under direct sunlight.

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