Acid leaching of natural chrysotile asbestos to mesoporous silica fibers
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2018
Authors
Maletaškić, JelenaStanković, Nadežda
Daneu, Nina
Babić, Biljana M.
Stoiljković, Milovan
Yoshida, Katsumi
Matović, Branko
Article (Published version)
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© 2017, Springer-Verlag GmbH
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Nanofibrous silica with a high surface area was produced from chrysotile by the acid-leaching method. Natural mineral chrysotile asbestos from Stragari, Korlace in Serbia was used as the starting material. The fibers were modified by chemical treatment with 1 M HCl and the mineral dissolution was monitored by transmission electron microscopy, X-ray powder diffraction, inductively coupled plasma spectrometry and low-temperature nitrogen adsorption techniques to highlight the effects of the leaching process. The results showed that the applied concentration of acid solution and processing time of 4 h were sufficient to effectively remove the magnesium hydroxide layer and transform the crystal structure of the hazardous starting chrysotile to porous SiO2 nanofibers. With prolonged acid leaching, the specific surface area, S (BET), calculated by BET equation, was increased from 147 up to 435 m(2) g(- 1), with micropores representing a significant part of the specific surface.
Keywords:
chrysotile asbestos / leaching / silica fibers / TEMSource:
Physics and Chemistry of Minerals, 2018, 45, 4, 343-351Funding / projects:
- Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Slovenian-Serbian bilateral collaboration [BI-RS/12-13-019]
- Slovenian research agency [P2-0084]
- Tokyo Institute of Technology, Laboratory for Advanced Nuclear Energy, Institute of Innovative Research
DOI: 10.1007/s00269-017-0924-z
ISSN: 0342-1791
WoS: 000430587200004
Scopus: 2-s2.0-85030851597
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VinčaTY - JOUR AU - Maletaškić, Jelena AU - Stanković, Nadežda AU - Daneu, Nina AU - Babić, Biljana M. AU - Stoiljković, Milovan AU - Yoshida, Katsumi AU - Matović, Branko PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7663 AB - Nanofibrous silica with a high surface area was produced from chrysotile by the acid-leaching method. Natural mineral chrysotile asbestos from Stragari, Korlace in Serbia was used as the starting material. The fibers were modified by chemical treatment with 1 M HCl and the mineral dissolution was monitored by transmission electron microscopy, X-ray powder diffraction, inductively coupled plasma spectrometry and low-temperature nitrogen adsorption techniques to highlight the effects of the leaching process. The results showed that the applied concentration of acid solution and processing time of 4 h were sufficient to effectively remove the magnesium hydroxide layer and transform the crystal structure of the hazardous starting chrysotile to porous SiO2 nanofibers. With prolonged acid leaching, the specific surface area, S (BET), calculated by BET equation, was increased from 147 up to 435 m(2) g(- 1), with micropores representing a significant part of the specific surface. T2 - Physics and Chemistry of Minerals T1 - Acid leaching of natural chrysotile asbestos to mesoporous silica fibers VL - 45 IS - 4 SP - 343 EP - 351 DO - 10.1007/s00269-017-0924-z ER -
@article{ author = "Maletaškić, Jelena and Stanković, Nadežda and Daneu, Nina and Babić, Biljana M. and Stoiljković, Milovan and Yoshida, Katsumi and Matović, Branko", year = "2018", abstract = "Nanofibrous silica with a high surface area was produced from chrysotile by the acid-leaching method. Natural mineral chrysotile asbestos from Stragari, Korlace in Serbia was used as the starting material. The fibers were modified by chemical treatment with 1 M HCl and the mineral dissolution was monitored by transmission electron microscopy, X-ray powder diffraction, inductively coupled plasma spectrometry and low-temperature nitrogen adsorption techniques to highlight the effects of the leaching process. The results showed that the applied concentration of acid solution and processing time of 4 h were sufficient to effectively remove the magnesium hydroxide layer and transform the crystal structure of the hazardous starting chrysotile to porous SiO2 nanofibers. With prolonged acid leaching, the specific surface area, S (BET), calculated by BET equation, was increased from 147 up to 435 m(2) g(- 1), with micropores representing a significant part of the specific surface.", journal = "Physics and Chemistry of Minerals", title = "Acid leaching of natural chrysotile asbestos to mesoporous silica fibers", volume = "45", number = "4", pages = "343-351", doi = "10.1007/s00269-017-0924-z" }
Maletaškić, J., Stanković, N., Daneu, N., Babić, B. M., Stoiljković, M., Yoshida, K.,& Matović, B.. (2018). Acid leaching of natural chrysotile asbestos to mesoporous silica fibers. in Physics and Chemistry of Minerals, 45(4), 343-351. https://doi.org/10.1007/s00269-017-0924-z
Maletaškić J, Stanković N, Daneu N, Babić BM, Stoiljković M, Yoshida K, Matović B. Acid leaching of natural chrysotile asbestos to mesoporous silica fibers. in Physics and Chemistry of Minerals. 2018;45(4):343-351. doi:10.1007/s00269-017-0924-z .
Maletaškić, Jelena, Stanković, Nadežda, Daneu, Nina, Babić, Biljana M., Stoiljković, Milovan, Yoshida, Katsumi, Matović, Branko, "Acid leaching of natural chrysotile asbestos to mesoporous silica fibers" in Physics and Chemistry of Minerals, 45, no. 4 (2018):343-351, https://doi.org/10.1007/s00269-017-0924-z . .