Study the Effect of Doping with Chromium Chloride on Silica Aerogel Properties Prepared with Ambient Pressure

Al-Sharueez, Israa F.; Twej, Wesam A. A.

doi:10.9790/4861-0903012832

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…al, according to the findings, the aerogel's hydrophobic characteristic may be improved by the doping method. Doped aerogel has a lower density than undoped aerogel, meaning its particles are smaller and its surface is more uniform [21]. In this study, aerogels in ambient pressure are prepared and investigate the Raman and fluorescence and absorption spectrum in different cases as sol, gel, and aerogel.…”

Section: Introductionmentioning

confidence: 99%

Raman Spectroscopy and Structural Characteristics of Copper-Ion-Doped Silica Sol, Gel, and Aerogel

Anaad

2023

basjs

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This work presents the synthesis of silica sol, gel, and aerogel. To achieve a hydrophobic silica gel infused with copper chloride, a surface modification was performed on the sample. Furthermore, The present study focused on the examination of the evolutionary patterns of composition profiles in sol, gel, and aerogel materials. This investigation aimed to analyze the spectral properties of fluorescence, absorption, Raman spectroscopy, and FTIR spectrum. Additionally, the surface morphology, topography, and square of the surface roughness were evaluated using advanced imaging techniques such as scanning electron microscopy with a field-emission source (FE-SEM) and Atomic Force Microscope (AFM) images. The results indicate that there are notable distinctions in peak regions and distribution between the fluorescence and absorption spectra. This distinction is particularly evident in the Raman spectrum of sol, gel, and aerogel samples, where variations in peak regions and distribution are observed. Furthermore, the dominance of homogeneity and nano-structure, as well as the presence of surface roughness and increased surface area, are clearly discernible in the AFM topography.

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Section: Introductionmentioning

confidence: 99%

Raman Spectroscopy and Structural Characteristics of Copper-Ion-Doped Silica Sol, Gel, and Aerogel

Anaad

2023

basjs

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“…investigated the effect of doping silica aerogel with CuCl2 via two-step acid-base catalysis at ambient pressure. It has been demonstrated that the doping method improves the hydrophobic properties of aerogels by lowering their density, resulting in smaller particle sizes and a more homogeneous surface (Al-Sharueez & Twej, 2017). Another study showed the effect of one type of rhodamine (6G) dye in different concentrations on improving some properties of silica aerogel (Israa F AL-Sharuee, 2021).…”

Section: Introductionmentioning

confidence: 99%

Comparison of the properties of silica aerogel doped with two different laser dyes: Crystal violet and Rhodamine B

Ahmed

Al-sharuee

2022

KJS publishes peer-review articles in Mathematics, Computer Sci

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In this paper, silica aerogel was doped with two laser dyes, Crystal violet and Rhodamine B, dissolved in ethanol. All samples were prepared in two different ways, with different concentrations and compared with non-doped prepared aerogel. The first way is the modification after the samples are converted to gel. The second way, the modification procedure, starts by adding the modified solution to the sol. TEOS was used as a precursor in two-step acid-base catalysis, and the silanol group trimethylchlorosilane + n-hexane was used as a surface modification. Fourier-transform infrared spectroscopy, field emission scanning electron microscope, X-ray diffraction, nitrogen adsorption-desorption isotherm, and contact angle measurements compared the characterization and structural properties of the two dyes. Results indicate that crystal violet gives better than Rhodamine B, as the contact angle measurement was 153°, total pour volume was 1.066 cm3/gm and the surface area was more significant than 970 m2/gm. While for Rhodamine B, the maximum contact angle was 146°, and the largest surface area was 899 m2/gm. And total pour volume was 1.6 cm3/gm.

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“…This technology should also confirm the need to require the oil by separating oil from water mixtures to meet the economic demands [7,8]. Many works prepare hydrophobic aerogel and researched with some parameters which influence on equality this product, such as 125 effect of catalysis [9], doping with metal ions [10]. In recent years many researchers have been interested in this field, where determine John G. and others the capacity of oil absorbing by aerogel after mixed with water their study give a good separation and extraction and moderate oil recovery [11].…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Aerogel as Sorbents for Iraqi Crude Oil Leaked In Water

Al-sharuee

2019

MJS

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A superhydrophobic aerogel has been utilized as adsorbed the Crude oil leaked during transport in the waters of the Tigris and Euphrates rivers, and determine the capacity absorbing of the aerogel powder for crude oil. This technique is very important to get rid of environmental pollution caused by the leakage of crude oil in water, which in turn cause the death of fish, this application is an important economic wealth in the country, preliminary tests on Tigris and Euphrates rivers mixed with the crude oil, by using the aerogel in powder form to clean the water from crude oil, the study depended on two parameters are surface area and contact angle. We found that the increasing on surface area lead to increasing on the capacity of adsorbing the crude oil from water, also this result with contact angle.

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Study the Effect of Doping with Chromium Chloride on Silica Aerogel Properties Prepared with Ambient Pressure

Cited by 4 publications

References 17 publications

Raman Spectroscopy and Structural Characteristics of Copper-Ion-Doped Silica Sol, Gel, and Aerogel

Raman Spectroscopy and Structural Characteristics of Copper-Ion-Doped Silica Sol, Gel, and Aerogel

Comparison of the properties of silica aerogel doped with two different laser dyes: Crystal violet and Rhodamine B

Superhydrophobic Aerogel as Sorbents for Iraqi Crude Oil Leaked In Water

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