This study concerns the results of Physicochemical and mineralogical characterization of a Moroccan bentonite (bentonite Azzouzet) and determination of its nature and its chemical structure. Several techniques were used; in particular X-ray diffraction (XRD), scanning electron microscopy coupled with EDX microanalysis (SEM-EDX), differential thermal and gravimetric analyses (DTA-TGA) and finally infrared Fourier transform (FTIR) and X-ray fluorescence (XRF). The bentonite fine fraction (< 2 µm in size), was characterized by BET method for specific surface area, and a cation- exchange capacity.The X-ray diffraction analysis supplemented by gravimetric analysis showed that Azzouzet bentonite is primarily (smectite) (49 wt %) with the presence of feldspar (34 wt %), Quartz (5 wt %), magnetite (7 wt %) and amorphous iron oxide (3 wt %). It has a cation- exchange capacity of 73,3 meq/100g and a specific surface area by using surface area analyser and N2 gaz was used as adsorbate under atmosphere of 31 m²/g.the structural formula calculated for bentonite has shown that the montmorillonite has a high charge density. SEM-EDX, X-ray, chemical analysis and Infrared spectroscopy demonstrated that this montmorillonite contains iron Fe3 + in the octahedral sheet. The origin of the charge sheets is tetraedral (Si4) (Al2.12 Mg0.15), with the montmorillonite character of the bentonite (15%) is present (less than 50% octahedral charge) with a phase rich in iron.
Published in | International Journal of Materials Science and Applications (Volume 3, Issue 2) |
DOI | 10.11648/j.ijmsa.20140302.16 |
Page(s) | 42-48 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2014. Published by Science Publishing Group |
XRD, (DTA-TGA) (SEM-EDX), FTIR, FX, Bentonite, Azzouzet, Montmorillonite, Morocco
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APA Style
Azzeddine Er-ramly, Abdelali Ider. (2014). Physico - Chemical and Mineralogical Characterization of a Moroccan Bentonite (Azzouzet) and Determination of its Nature and its Chemical Structure. International Journal of Materials Science and Applications, 3(2), 42-48. https://doi.org/10.11648/j.ijmsa.20140302.16
ACS Style
Azzeddine Er-ramly; Abdelali Ider. Physico - Chemical and Mineralogical Characterization of a Moroccan Bentonite (Azzouzet) and Determination of its Nature and its Chemical Structure. Int. J. Mater. Sci. Appl. 2014, 3(2), 42-48. doi: 10.11648/j.ijmsa.20140302.16
@article{10.11648/j.ijmsa.20140302.16, author = {Azzeddine Er-ramly and Abdelali Ider}, title = {Physico - Chemical and Mineralogical Characterization of a Moroccan Bentonite (Azzouzet) and Determination of its Nature and its Chemical Structure}, journal = {International Journal of Materials Science and Applications}, volume = {3}, number = {2}, pages = {42-48}, doi = {10.11648/j.ijmsa.20140302.16}, url = {https://doi.org/10.11648/j.ijmsa.20140302.16}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20140302.16}, abstract = {This study concerns the results of Physicochemical and mineralogical characterization of a Moroccan bentonite (bentonite Azzouzet) and determination of its nature and its chemical structure. Several techniques were used; in particular X-ray diffraction (XRD), scanning electron microscopy coupled with EDX microanalysis (SEM-EDX), differential thermal and gravimetric analyses (DTA-TGA) and finally infrared Fourier transform (FTIR) and X-ray fluorescence (XRF). The bentonite fine fraction (< 2 µm in size), was characterized by BET method for specific surface area, and a cation- exchange capacity.The X-ray diffraction analysis supplemented by gravimetric analysis showed that Azzouzet bentonite is primarily (smectite) (49 wt %) with the presence of feldspar (34 wt %), Quartz (5 wt %), magnetite (7 wt %) and amorphous iron oxide (3 wt %). It has a cation- exchange capacity of 73,3 meq/100g and a specific surface area by using surface area analyser and N2 gaz was used as adsorbate under atmosphere of 31 m²/g.the structural formula calculated for bentonite has shown that the montmorillonite has a high charge density. SEM-EDX, X-ray, chemical analysis and Infrared spectroscopy demonstrated that this montmorillonite contains iron Fe3 + in the octahedral sheet. The origin of the charge sheets is tetraedral (Si4) (Al2.12 Mg0.15), with the montmorillonite character of the bentonite (15%) is present (less than 50% octahedral charge) with a phase rich in iron.}, year = {2014} }
TY - JOUR T1 - Physico - Chemical and Mineralogical Characterization of a Moroccan Bentonite (Azzouzet) and Determination of its Nature and its Chemical Structure AU - Azzeddine Er-ramly AU - Abdelali Ider Y1 - 2014/03/20 PY - 2014 N1 - https://doi.org/10.11648/j.ijmsa.20140302.16 DO - 10.11648/j.ijmsa.20140302.16 T2 - International Journal of Materials Science and Applications JF - International Journal of Materials Science and Applications JO - International Journal of Materials Science and Applications SP - 42 EP - 48 PB - Science Publishing Group SN - 2327-2643 UR - https://doi.org/10.11648/j.ijmsa.20140302.16 AB - This study concerns the results of Physicochemical and mineralogical characterization of a Moroccan bentonite (bentonite Azzouzet) and determination of its nature and its chemical structure. Several techniques were used; in particular X-ray diffraction (XRD), scanning electron microscopy coupled with EDX microanalysis (SEM-EDX), differential thermal and gravimetric analyses (DTA-TGA) and finally infrared Fourier transform (FTIR) and X-ray fluorescence (XRF). The bentonite fine fraction (< 2 µm in size), was characterized by BET method for specific surface area, and a cation- exchange capacity.The X-ray diffraction analysis supplemented by gravimetric analysis showed that Azzouzet bentonite is primarily (smectite) (49 wt %) with the presence of feldspar (34 wt %), Quartz (5 wt %), magnetite (7 wt %) and amorphous iron oxide (3 wt %). It has a cation- exchange capacity of 73,3 meq/100g and a specific surface area by using surface area analyser and N2 gaz was used as adsorbate under atmosphere of 31 m²/g.the structural formula calculated for bentonite has shown that the montmorillonite has a high charge density. SEM-EDX, X-ray, chemical analysis and Infrared spectroscopy demonstrated that this montmorillonite contains iron Fe3 + in the octahedral sheet. The origin of the charge sheets is tetraedral (Si4) (Al2.12 Mg0.15), with the montmorillonite character of the bentonite (15%) is present (less than 50% octahedral charge) with a phase rich in iron. VL - 3 IS - 2 ER -