Preparation and Characterization of CuO Nano Particles Using Sol-Gel Method and Its Application as CuO/ Al&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt; Supported Catalyst

Eltoum, Mohammed Sulieman Ali; Nasr, Rufaa Mohamed Osman; Omer, Hager Mohamed Ahmed

doi:10.11648/j.nano.20200802.11

Cited by 2 publications

(2 citation statements)

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“…2θ = 32.51, 35.54, 38.71, 48.72, 53.49, 58.26, 61.52, 65.81, 66.22, there are sharp characteristic diffraction peaks with large intensity, which correspond to crystal planes (110), (111−), (111), (202−), (020), (202), (113−), (022), and (311−), respectively, and the cell constants a, b, c are 0.4688, 0.3423, and 0.5132 nm, respectively, which is consistent with the standard diffraction pattern PDF # 48–1548, that is, CuO species with monoclinic structure. 33 Meanwhile, no peaks of other phases or impurities are observed in the XRD patterns, indicating that the product has good crystallinity, complete crystal structure, and high purity. In addition, the five diffraction peaks also reveal significant broadening, indicating that each product contains very small crystal structures, i.e.…”

Section: Resultsmentioning

confidence: 99%

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Wang,

Lai,

Yang

et al. 2023

Polymers and Polymer Composites

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Macroporous cation exchange resins (CER) were used as carriers, and CuO loaded cation exchange resin composites was successfully prepared under thermostatic oscillation and hydrothermal conditions. The results showed that the as-prepared composites exhibited obvious shell-core structure. The different amounts of NaOH affected the micro morphology of CuO on the surface and in the internal pores of the resin, and also affected the percentage content of Cu element. XRD characterization clearly revealed that the products were monoclinic crystal system CuO species with a grain size of about 16 nm. The highest degradation rate of polyacrylamide (PAM) by CuO@IER-1g reached 81.94%, after 6 cycles CuO@CER-1g has still good photocatalytic activity, and the decrease in degradation rate was the combined effect from the adsorption of ion exchange resins and the electron-hole pairs formed by CuO and a series of free radical transfer reactions under ultraviolet light. This study has important theoretical basis and practical significance for enriching ion exchange theory, developing the photocatalytic industry, and purifying the environment.

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Section: Resultsmentioning

confidence: 99%

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Wang,

Lai,

Yang

et al. 2023

Polymers and Polymer Composites

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“…a continuous liquid network (gel) [4,7]. Once the gel is formed, it can be coated and dried to form thin films, as will be discussed, or be further dried, and densified at higher temperatures to fine powder, depending on the application [5], see Figure 3.…”

Section: Figurementioning

confidence: 99%

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

Hassen¹,

Sayed²,

Al‐Ghamdi³

et al. 2023

Sol-Gel Method - Recent Advances

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Two main approaches for nanomaterials fabrication are the top-down and the bottom-up methods. The first is limited to mechanical grinding, thermal evaporation, ion sputtering, arc discharge, pulsed laser ablation, and other physical and chemical vapor deposition. These routes are costly, consume higher energy, and require complex technology such as ultrahigh vacuum. The bottom-up methods refer to the production of complex nanostructured materials from atoms and molecules. This approach is relatively simple and low in cost. However, it requires a good knowledge of the optical properties of the particles and their modifications when the particles are integrated with nanostructures. One of the widest bottom-up methods is the sol–gel. It involves a solution or sol (single-phase liquid) that undergoes a sol–gel transition (stable suspension of colloidal particles). In this chapter, we throw light on the history of sol–gel, its advantages, and limitations, operating this method for the production of different types of nanomaterials in the form of powders or thin films. In addition, some applications of the sol–gel-derived nanosized materials will be discussed.

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Preparation and Characterization of CuO Nano Particles Using Sol-Gel Method and Its Application as CuO/ Al<sub>2</sub>O<sub>3</sub> Supported Catalyst

Cited by 2 publications

References 1 publication

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Synthesis of Some Functional Oxides and Their Composites Using Sol-Gel Method

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