Characterization of Philippine natural bentonite
Philippine natural bentonite is characterized using X-ray diffractometer (XRD), scanning electron microscope (SEM), chemical analysis, thermogravimetric-differential scanning calorimetry (TG-DSC), and Fourier transform infrared (FTIR) analysis. The cation exchange capacity (CEC) was also measured. X...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2021-01-01
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| Series: | Experimental Results |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S2516712X21000162/type/journal_article |
| _version_ | 1811156301687816192 |
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| author | Eleanor M. Olegario Mon Bryan Z. Gili Mert Celikin |
| author_facet | Eleanor M. Olegario Mon Bryan Z. Gili Mert Celikin |
| author_sort | Eleanor M. Olegario |
| collection | DOAJ |
| description | Philippine natural bentonite is characterized using X-ray diffractometer (XRD), scanning electron microscope (SEM), chemical analysis, thermogravimetric-differential scanning calorimetry (TG-DSC), and Fourier transform infrared (FTIR) analysis. The cation exchange capacity (CEC) was also measured. XRD shows that the mineral is composed primarily of mordenite, hectorite, and montmorillonite. SEM shows the flaky and porous structure of the bentonite powder. Chemical analyses show that SiO2 (47.90 wt%) and Al2O3 (14.02 wt%) are the major components of the clay. TG-DSC shows that the mineral contains 15.55% moisture. IR transmittance spectrum shows the common vibration bands present in the sample which include O–H stretching of inter-porous water, symmetric and asymmetric stretching of hydroxyl functional groups, asymmetrical stretching of internal tetrahedra (O–Si–O and O–Al–O), symmetrical stretching of external linkages, and so on. The measured CEC were found to be 91.37 and 43.01 meq/100 g according to the ammonium acetate method and barium acetate method, respectively. |
| first_indexed | 2024-04-10T04:48:10Z |
| format | Article |
| id | doaj.art-57a60363f3214254b57771d7a424113d |
| institution | Directory Open Access Journal |
| issn | 2516-712X |
| language | English |
| last_indexed | 2024-04-10T04:48:10Z |
| publishDate | 2021-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Experimental Results |
| spelling | doaj.art-57a60363f3214254b57771d7a424113d2023-03-09T12:34:18ZengCambridge University PressExperimental Results2516-712X2021-01-01210.1017/exp.2021.16Characterization of Philippine natural bentoniteEleanor M. Olegario0Mon Bryan Z. Gili1https://orcid.org/0000-0003-1242-2510Mert Celikin2Department of Mining, Metallurgical and Materials Engineering, University of the Philippines Diliman, Quezon City, PhilippinesDepartment of Science and Technology, Philippine Nuclear Research Institute, Quezon City, PhilippinesUniversity College Dublin, Mechanical and Materials Engineering, Dublin, Ireland, 4Philippine natural bentonite is characterized using X-ray diffractometer (XRD), scanning electron microscope (SEM), chemical analysis, thermogravimetric-differential scanning calorimetry (TG-DSC), and Fourier transform infrared (FTIR) analysis. The cation exchange capacity (CEC) was also measured. XRD shows that the mineral is composed primarily of mordenite, hectorite, and montmorillonite. SEM shows the flaky and porous structure of the bentonite powder. Chemical analyses show that SiO2 (47.90 wt%) and Al2O3 (14.02 wt%) are the major components of the clay. TG-DSC shows that the mineral contains 15.55% moisture. IR transmittance spectrum shows the common vibration bands present in the sample which include O–H stretching of inter-porous water, symmetric and asymmetric stretching of hydroxyl functional groups, asymmetrical stretching of internal tetrahedra (O–Si–O and O–Al–O), symmetrical stretching of external linkages, and so on. The measured CEC were found to be 91.37 and 43.01 meq/100 g according to the ammonium acetate method and barium acetate method, respectively.https://www.cambridge.org/core/product/identifier/S2516712X21000162/type/journal_articlebentoniteFTIRmontmorilloniteTG-DSCXRD |
| spellingShingle | Eleanor M. Olegario Mon Bryan Z. Gili Mert Celikin Characterization of Philippine natural bentonite Experimental Results bentonite FTIR montmorillonite TG-DSC XRD |
| title | Characterization of Philippine natural bentonite |
| title_full | Characterization of Philippine natural bentonite |
| title_fullStr | Characterization of Philippine natural bentonite |
| title_full_unstemmed | Characterization of Philippine natural bentonite |
| title_short | Characterization of Philippine natural bentonite |
| title_sort | characterization of philippine natural bentonite |
| topic | bentonite FTIR montmorillonite TG-DSC XRD |
| url | https://www.cambridge.org/core/product/identifier/S2516712X21000162/type/journal_article |
| work_keys_str_mv | AT eleanormolegario characterizationofphilippinenaturalbentonite AT monbryanzgili characterizationofphilippinenaturalbentonite AT mertcelikin characterizationofphilippinenaturalbentonite |