Mineralogical and chemical characterization of DD3 kaolin from the east of Algeria

Senoussi, Hamza; Osmani, Hocine; Courtois, Christian; Bourahli, M. E. H.

doi:10.1016/j.bsecv.2015.12.001

Cited by 26 publications

(20 citation statements)

References 14 publications

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“…This peak is disappeared along increasing EDAPTMS due to the insertion of the molecules. The similar pattern is also reported from the modification of kaolin [19]. The identified conformation is also in agreement with the surface parameter evaluated from the N2 adsorption-desorption profile ( Fig.…”

Section: Materials Characterizationsupporting

confidence: 90%

N-[3-(Trimethoxysilyl)propyl] ethylenediamine Functionalized Saponite as Adsorbent of Nickel from Aqueous Solution

Fatimah¹,

Yudha²

2017

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Surface modification of saponite clay by surface functionalization using N-[3-(Trimethoxysilyl)propyl]ethylenediamine was performed. This study of the physicochemical characteristics of modified saponite as a function of its functional compound content was investigated using XRD, a gas sorption analyzer, FTIR, TG analysis and SEM. It was observed that the content of N-[3-(Trimethoxysilyl)propyl]ethylenediamine increases the basal spacing (d001) of the saponite structure, which changes the specific surface area and surface profile of the solid. The study of nickel adsorption provides evidence of the increased adsorption capacity of the modified saponite. The adsorption follows pseudo-second order kinetics and fits the Langmuir, Temkin and Dubinin-Radushkevich (D-R) adsorption isotherms. Increased content of the modifying agent results in increased adsorption capacity. The material is reusable because regenerated materials retain greater than 90% of the adsorption capacity of fresh material.

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Section: Materials Characterizationsupporting

confidence: 90%

N-[3-(Trimethoxysilyl)propyl] ethylenediamine Functionalized Saponite as Adsorbent of Nickel from Aqueous Solution

Fatimah¹,

Yudha²

2017

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“…2a). The normal state reflection of clay fraction (particle size less than 2 μm) helps to identify the clay minerals in the absence of other non-clay minerals intervention (Senoussi et al., 2015). So in this study, major XRD reflection of normal state (Fig.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of electrical porcelain insulator from ceramic raw materials of Oromia region, Ethiopia

Merga

Murthy

Zereffa

et al. 2019

Heliyon

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Electrical porcelain insulator was fabricated from local ceramic raw materials, Bombowha kaolin/clay, Arero feldspar and Arero quartz available in Ethiopia. The raw materials mineralogy, chemical composition, and thermal properties were characterized by using x-ray diffractometer (XRD), atomic absorption spectrometer (AAS) and thermogravimetry (TGA), respectively. Plasticity of clay was determined according to Atterberg plasticity test. Based on the raw materials chemical composition, five different porcelain insulator test bodies were prepared at firing temperature of 1000 °C, 1100 °C, 1200 °C and 1300 °C. Water absorbance, apparent porosity, bulk density, dielectric strength and microstructure of fired porcelain insulators were studied as a function of firing temperature. The XRD and AAS results revealed that in Bombowha clay, kaolinite mineral was found to be a major mineral constituent with appreciable silica (46.84 wt%) and alumina (36.74 wt%) content with moderate plasticity (PI = 19–21%). The Arero feldspar belongs to anorthoclase feldspar minerals with less alkali content (Na 2 O + K 2 0) of <7wt %. Among the tested porcelain insulator bodies, the test body with composition of 45% kaolin, 45% feldspar and 10 % quartz exhibited superior properties of having a water absorbance of 0.010%, porosity of 0.088%, density of 2.466 g/cm 3 , dielectric strength of 8 Kv/mm at firing temperature of 1300 °C with mullite and quartz phase embedded in sufficient glassy phase. Therefore, the experimental result confirmed that standard porcelain insulator can be fabricated from locally available ceramic raw materials (clay and quartz) in Ethiopia at optimized condition.

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“…X-ray powder diffraction of the two kaolin samples was performed on an Xpert Pro MPD diffractometer (XRD, Malvern Panalytica, Eindhoven, Netherlands), which was operated at 40 kV and 40 mA with a Cu Kα (λ = 1.5406 Å) radiation. The samples were air desiccated and placed on the spinner of XRD, followed by scanning for 2θ ranging from 5° to 90° with a scan rate of 4 °/min and a step size of 0.02 [2,50]. Mineral compositions of the two clays were identified with JADE6.5 software.…”

Section: Methodsmentioning

confidence: 99%

Characterization and Hemostatic Potential of Two Kaolins from Southern China

Gan

Hu²,

Meng

et al. 2019

Molecules

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The physicochemical properties and potential hemostatic application of Wenchang kaolin and Maoming kaolin were inspected and evaluated. Chemical composition analysis, Fourier transform infrared (FTIR) spectroscopy, surface area determination, X-ray diffraction, particle size, scanning electron microscopy (SEM) observations, and zeta potential analysis were performed to quantify the physical and chemical properties of the two kaolins. The results showed that both kaolins have typical FTIR bands of kaolinite with a weight fraction for kaolinite over 90 wt%. Larger conglobate aggregates of Maoming kaolin demonstrated wider particle size distributions with two peaks at 3.17 and 35.57 μm, while the book-like Wenchang kaolin had narrow particle size distribution, with a frequent size of 5.64 μm. Furthermore, thrombelastography, the whole blood clotting tests (WBCT), plasma recalcification time (PRT) measurement, and MTT assay were performed to measure the clotting activities and biocompatibility of the two kaolins. The results showed that both kaolins could promote blood coagulation with good cytocompatibility, while Wenchang kaolin had a better procoagulant activity than Maoming kaolin. These findings demonstrated Wenchang kaolin to be a more suitable local source material for application as a hemostatic agent.

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Mineralogical and chemical characterization of DD3 kaolin from the east of Algeria

Cited by 26 publications

References 14 publications

N-[3-(Trimethoxysilyl)propyl] ethylenediamine Functionalized Saponite as Adsorbent of Nickel from Aqueous Solution

N-[3-(Trimethoxysilyl)propyl] ethylenediamine Functionalized Saponite as Adsorbent of Nickel from Aqueous Solution

Fabrication of electrical porcelain insulator from ceramic raw materials of Oromia region, Ethiopia

Characterization and Hemostatic Potential of Two Kaolins from Southern China

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