Ftir ca- bentonite
WebSep 1, 2024 · Fourier Transform Infrared Analysis (FTIR) Fourier transform Infrared spectroscopy (FTIR) analysis was performed using a Perkin Elmer 1760 FTIR spectrometer operating in the range 4000 ... Some properties and potential applications of the Na- and Ca- bentonite of Ordu. Appl Clay Sci. 2011;54:159–65. Article CAS Google Scholar ... WebMay 1, 2016 · The concrete–bentonite interactions, and more general, concrete–clay interactions, have been studied as part of the expected geochemical reactions occurring within the composite engineered barriers in high-level radioactive waste in deep geological repositories (e.g. US DOE, 2014).The long-term result of such interactions has to be …
Ftir ca- bentonite
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WebMar 11, 2024 · A new approach to acid activation of raw Ca-bentonite was explored. The method consisted in dehydration of clay by thermal pretreatment at 200 °C, followed by immediate impregnation with H 2 SO 4 solution. ... (FTIR), 27 Al magic angle spinning nuclear magnetic resonance (MAS NMR), and chemical analysis. In the macroscopically … WebN2 - Solid catalyst of Ca@Al-Bentonite was prepared by modifying natural bentonite which collected from Bogor, Indonesia via pillarization of Al and wet impregnation of Ca particles. The catalyst was characterized by means of FTIR, XRD, XRF and BET surface area. The catalyst is successful to use for Aldol condensation in chalcone synthesis.
WebJan 10, 2012 · FTIR spectroscopy along with other characterizing method such as x-ray diffraction and x-ray fluorescence is used for characterization of bentonites. Adsorption peaks at 524, 466, and 917 cm −1 confirm the presence of montmorillonite. Webcatalysts respectively. XRF result identified the natural bentonite clay as Ca-bentonite clay with Ca-oxide having the most dominant component of 76.71%. XRF chemical compositions of the six activated Ca-bentonite clay catalysts when compared to the natural Ca-bentonite clay confirmed successful impregnation. The SEM images
WebMar 6, 2024 · The FTIR spectra were used to evaluate the group chemical bonds in bentonite samples, before and after calcination, as illustrated in Fig. 5. Tracks from bands between 470 and 1120 cm −1 correspond to the filosilicate structure, which is associated with the elongation and angular deformation of Si–O–Si and Si–O–Al. WebThe FTIR spectrum of PEG 8000 adsorbed on Na- smectite was similar to that obtained for PEG8000 adsorbed on Ca-smectite, with bands due to O H vibration at 3458 cm − 1 , alkyl CH vibration at ...
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WebThe resultant inorganic-organic montmorillonite complexes were characterized using FTIR, with a combination of XRD, TG and chemical analysis. This study indicates that the basal spacings of the CTAB-Al-montmorillonite complexes and the amounts of Al-contained pillars strongly depend on the surfactant loadings in the clay interlayer space ... initiative it-fitnessWebJun 1, 2016 · A modified procedure for bentonite purification and a new method for the quantitative characterization of bentonite using smectite content are reported. Bentonite found in a drill core of Tsunagi Mine, Niigata, Japan was evaluated by the new method to demonstrate the substantial increase in smectite content from 40% in the original … mn by countyWebMay 24, 2024 · The characteristic bands of the FTIR spectra of different bentonite samples clearly identified montmorillonite in the samples ... Samples from three mines (WH, XY, and ST) were all Ca-bentonite, and the main mineral impurities were quartz-type impurities. The Q m of sample ST was greatest (0.725 e/huc), followed by sample XY ... mn cadi waiver manualWebModification of bentonite was done by thermal treatment (80 °C), acid treatment (ethanoic acid) and pillaring (Fe, Ca, Al). Pillared and modified bentonite were analysed by XRD, XRF, FTIR and SEM. Adsorption of phosphate ions has resulted with 2 gm of adsorbent shown in Fig. 6. Modified bentonite was proved a potential and environment-friendly ... initiative job performance reviewWebAcid-treated bentonite shows a catalytic activity towards decomposition of isopropanol due to overall acidity whereas the selectivity accounts for the nature of its acid sites. The examination of the IR spectra using different basic probes such as 2,6-dimethylpyridine, pyridine and CD3CN shows the presence of various types of acid sites. The Lewis acid … mn by countiesWebMay 27, 2008 · Development of FTIR spectroscopy as an analytical tool to determine the amount of bentonite (montmorillonite) in the modified moulding sands has been the aim of the present study. Modification of moulding sands with the dust generated during foundry process has been investigated in this paper. 2. Materials and methods. initiative job application emailWebOct 10, 2024 · Geographical location of clay types. Kaolin clay was collected from the geographical location of Ijapo estate area of Akure in Ondo state, south–west region of Nigeria with longitude and latitude of 7 0 16′06.0′′N and 5 0 12′17.1′′E, respectively. While bentonite clay was collected from the geographical location of deposit of Afuze in Edo … mn campground for sale