Immobilization of hexavalent chromium by fly ash-based geopolymers
Samo za registrovane korisnike
2017
Autori
Nikolić, VioletaKomljenović, Miroslav M
Džunuzović, Nataša
Ivanović, Tijana
Miladinović, Zoran P.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this paper the immobilization of hexavalent chromium (Cr (VI)) by fly ash (FA)-based geopolymers was investigated, depending on FA characteristics, mechanical activation of FA, geopolymer synthesis conditions and concentration of Cr added. The effectiveness of Cr immobilization was determined via investigation of geopolymer compressive strength and Cr leaching. Structural changes of geopolymers during the Cr immobilization were assessed by means of gas adsorption, XRD, and NMR analysis. FA reactivity was a key factor determining both physical-mechanical and immobilizing properties of geopolymers. Mechanical activation of FA caused an increase of both geopolymer strength and effectiveness of Cr immobilization. The presence of Cr induced physical-mechanical and structural changes in geopolymers. The correlation between concentration of Cr leached and geopolymer physical-mechanical and structural parameters was established.
Ključne reči:
Powder processing / Physical properties / Mechanical properties / Geopolymers / Environmental degradationIzvor:
Composites Part B-Engineering, 2017, 112, 213-223Izdavač:
- Elsevier Sci Ltd, Oxford
Finansiranje / projekti:
- Geopolimeri - Razvoj tehnologije za konverziju industrijskog otpada u funkcionalne materijale (RS-34026)
DOI: 10.1016/j.compositesb.2016.12.024
ISSN: 1359-8368
WoS: 000399517300022
Scopus: 2-s2.0-85009471744
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Nikolić, Violeta AU - Komljenović, Miroslav M AU - Džunuzović, Nataša AU - Ivanović, Tijana AU - Miladinović, Zoran P. PY - 2017 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1041 AB - In this paper the immobilization of hexavalent chromium (Cr (VI)) by fly ash (FA)-based geopolymers was investigated, depending on FA characteristics, mechanical activation of FA, geopolymer synthesis conditions and concentration of Cr added. The effectiveness of Cr immobilization was determined via investigation of geopolymer compressive strength and Cr leaching. Structural changes of geopolymers during the Cr immobilization were assessed by means of gas adsorption, XRD, and NMR analysis. FA reactivity was a key factor determining both physical-mechanical and immobilizing properties of geopolymers. Mechanical activation of FA caused an increase of both geopolymer strength and effectiveness of Cr immobilization. The presence of Cr induced physical-mechanical and structural changes in geopolymers. The correlation between concentration of Cr leached and geopolymer physical-mechanical and structural parameters was established. PB - Elsevier Sci Ltd, Oxford T2 - Composites Part B-Engineering T1 - Immobilization of hexavalent chromium by fly ash-based geopolymers EP - 223 SP - 213 VL - 112 DO - 10.1016/j.compositesb.2016.12.024 ER -
@article{ author = "Nikolić, Violeta and Komljenović, Miroslav M and Džunuzović, Nataša and Ivanović, Tijana and Miladinović, Zoran P.", year = "2017", abstract = "In this paper the immobilization of hexavalent chromium (Cr (VI)) by fly ash (FA)-based geopolymers was investigated, depending on FA characteristics, mechanical activation of FA, geopolymer synthesis conditions and concentration of Cr added. The effectiveness of Cr immobilization was determined via investigation of geopolymer compressive strength and Cr leaching. Structural changes of geopolymers during the Cr immobilization were assessed by means of gas adsorption, XRD, and NMR analysis. FA reactivity was a key factor determining both physical-mechanical and immobilizing properties of geopolymers. Mechanical activation of FA caused an increase of both geopolymer strength and effectiveness of Cr immobilization. The presence of Cr induced physical-mechanical and structural changes in geopolymers. The correlation between concentration of Cr leached and geopolymer physical-mechanical and structural parameters was established.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Composites Part B-Engineering", title = "Immobilization of hexavalent chromium by fly ash-based geopolymers", pages = "223-213", volume = "112", doi = "10.1016/j.compositesb.2016.12.024" }
Nikolić, V., Komljenović, M. M., Džunuzović, N., Ivanović, T.,& Miladinović, Z. P.. (2017). Immobilization of hexavalent chromium by fly ash-based geopolymers. in Composites Part B-Engineering Elsevier Sci Ltd, Oxford., 112, 213-223. https://doi.org/10.1016/j.compositesb.2016.12.024
Nikolić V, Komljenović MM, Džunuzović N, Ivanović T, Miladinović ZP. Immobilization of hexavalent chromium by fly ash-based geopolymers. in Composites Part B-Engineering. 2017;112:213-223. doi:10.1016/j.compositesb.2016.12.024 .
Nikolić, Violeta, Komljenović, Miroslav M, Džunuzović, Nataša, Ivanović, Tijana, Miladinović, Zoran P., "Immobilization of hexavalent chromium by fly ash-based geopolymers" in Composites Part B-Engineering, 112 (2017):213-223, https://doi.org/10.1016/j.compositesb.2016.12.024 . .