The influence of modification on structural, textural and adsorption properties of bentonite
Uticaj modifikacije na strukturna, teksturalna i adsorpciona svojstva bentonita

2008
Authors
Jović-Jovičić, Nataša
Milutinović Nikolić, Aleksandra

Gržetić, Ivan

Banković, Predrag

Marković, Branislav Ž.

Jovanović, Dušan M.
Article (Published version)
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Show full item recordAbstract
Natural bentonite clay from the Bogovina locality in Serbia was Na-exchanged and modified using hexadecyll-trimethylammonium bromide as surfactant and organobentonite was obtained. The influence of modifications on the structural, textural and sorption properties of bentonite was investigated. It was estimated that modifications solely replace exchangeable cations in smectite layers, whereas other admixture minerals (quartz, calcite, feldspar) in bentonite remain unaffected. According to X-ray results the modification lead to changes in the smectite structure by either decreasing, for Na-bentonite, or increasing, for organobentonite, the interplanar spacing, JQOI- The appearance of three new bands in IR spectra of HDTMA-bentonite comparing to those of raw and Na-bentonite assigned to the methylene vibrations confirmed the embedding of aliphatic cations into smectite structure. In organobentonite a significant change in textural properties was observed. In particular, specific surface a...rea dramatically decreased while originally meso and microporous material became almost completely non-porous. Despite almost insignificant specific surface area the synthesized organobentonite due to gained organophyllity of its surface exhibits exquisite adsorption properties toward investigated textile dyes having adsorption capacity approx. 2 times higher than activated carbon.
Prirodna bentonitna glina sa lokaliteta Bogovina u Srbiji je natrijumski izmenjena i modifikovana heksadeciltrimetil amonijum-bromidom kao surfaktantom, pri čemu je dobijen organobentonit. Ispitivan je uticaj modifikacije na strukturu, teksturalna i adsorpciona svojstva bentonita. Utvrđeno je da primenjeni postupci modifikacije dovode isključivo do izmene katjona u medulamelamom sloju smektita, dok modifikacija ne deluje na druge prateće minerale u bentonitu (kvare, kalcit, feldspat). Uprkos neznatnoj specifičnoj površini sintetizovani organobentonit zahvaljujući novodobijenoj organofilnosti površine pokazuje izuzetna adsorpciona svojstva prema tekstilnim bojama, imajući adsorpcioni kapacitet oko 2 puta veći od aktivnog uglja.
Keywords:
bentonite / organobentonite / characterization / modification / adsorption / bentonit / organo-bentonit / karakterizacija / modifikacija / adsorpcijaSource:
Hemijska industrija, 2008, 62, 3, 131-137Publisher:
- Assoc Chemical Engineers Serbia, Belgrade
Funding / projects:
- Project MESTD, br. TR 6712B
DOI: 10.2298/HEMIND0803131J
ISSN: 0367-598X
WoS: 000257697700007
Scopus: 2-s2.0-77952908454
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IHTMTY - JOUR AU - Jović-Jovičić, Nataša AU - Milutinović Nikolić, Aleksandra AU - Gržetić, Ivan AU - Banković, Predrag AU - Marković, Branislav Ž. AU - Jovanović, Dušan M. PY - 2008 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/440 AB - Natural bentonite clay from the Bogovina locality in Serbia was Na-exchanged and modified using hexadecyll-trimethylammonium bromide as surfactant and organobentonite was obtained. The influence of modifications on the structural, textural and sorption properties of bentonite was investigated. It was estimated that modifications solely replace exchangeable cations in smectite layers, whereas other admixture minerals (quartz, calcite, feldspar) in bentonite remain unaffected. According to X-ray results the modification lead to changes in the smectite structure by either decreasing, for Na-bentonite, or increasing, for organobentonite, the interplanar spacing, JQOI- The appearance of three new bands in IR spectra of HDTMA-bentonite comparing to those of raw and Na-bentonite assigned to the methylene vibrations confirmed the embedding of aliphatic cations into smectite structure. In organobentonite a significant change in textural properties was observed. In particular, specific surface area dramatically decreased while originally meso and microporous material became almost completely non-porous. Despite almost insignificant specific surface area the synthesized organobentonite due to gained organophyllity of its surface exhibits exquisite adsorption properties toward investigated textile dyes having adsorption capacity approx. 2 times higher than activated carbon. AB - Prirodna bentonitna glina sa lokaliteta Bogovina u Srbiji je natrijumski izmenjena i modifikovana heksadeciltrimetil amonijum-bromidom kao surfaktantom, pri čemu je dobijen organobentonit. Ispitivan je uticaj modifikacije na strukturu, teksturalna i adsorpciona svojstva bentonita. Utvrđeno je da primenjeni postupci modifikacije dovode isključivo do izmene katjona u medulamelamom sloju smektita, dok modifikacija ne deluje na druge prateće minerale u bentonitu (kvare, kalcit, feldspat). Uprkos neznatnoj specifičnoj površini sintetizovani organobentonit zahvaljujući novodobijenoj organofilnosti površine pokazuje izuzetna adsorpciona svojstva prema tekstilnim bojama, imajući adsorpcioni kapacitet oko 2 puta veći od aktivnog uglja. PB - Assoc Chemical Engineers Serbia, Belgrade T2 - Hemijska industrija T1 - The influence of modification on structural, textural and adsorption properties of bentonite T1 - Uticaj modifikacije na strukturna, teksturalna i adsorpciona svojstva bentonita VL - 62 IS - 3 SP - 131 EP - 137 DO - 10.2298/HEMIND0803131J ER -
@article{ author = "Jović-Jovičić, Nataša and Milutinović Nikolić, Aleksandra and Gržetić, Ivan and Banković, Predrag and Marković, Branislav Ž. and Jovanović, Dušan M.", year = "2008", abstract = "Natural bentonite clay from the Bogovina locality in Serbia was Na-exchanged and modified using hexadecyll-trimethylammonium bromide as surfactant and organobentonite was obtained. The influence of modifications on the structural, textural and sorption properties of bentonite was investigated. It was estimated that modifications solely replace exchangeable cations in smectite layers, whereas other admixture minerals (quartz, calcite, feldspar) in bentonite remain unaffected. According to X-ray results the modification lead to changes in the smectite structure by either decreasing, for Na-bentonite, or increasing, for organobentonite, the interplanar spacing, JQOI- The appearance of three new bands in IR spectra of HDTMA-bentonite comparing to those of raw and Na-bentonite assigned to the methylene vibrations confirmed the embedding of aliphatic cations into smectite structure. In organobentonite a significant change in textural properties was observed. In particular, specific surface area dramatically decreased while originally meso and microporous material became almost completely non-porous. Despite almost insignificant specific surface area the synthesized organobentonite due to gained organophyllity of its surface exhibits exquisite adsorption properties toward investigated textile dyes having adsorption capacity approx. 2 times higher than activated carbon., Prirodna bentonitna glina sa lokaliteta Bogovina u Srbiji je natrijumski izmenjena i modifikovana heksadeciltrimetil amonijum-bromidom kao surfaktantom, pri čemu je dobijen organobentonit. Ispitivan je uticaj modifikacije na strukturu, teksturalna i adsorpciona svojstva bentonita. Utvrđeno je da primenjeni postupci modifikacije dovode isključivo do izmene katjona u medulamelamom sloju smektita, dok modifikacija ne deluje na druge prateće minerale u bentonitu (kvare, kalcit, feldspat). Uprkos neznatnoj specifičnoj površini sintetizovani organobentonit zahvaljujući novodobijenoj organofilnosti površine pokazuje izuzetna adsorpciona svojstva prema tekstilnim bojama, imajući adsorpcioni kapacitet oko 2 puta veći od aktivnog uglja.", publisher = "Assoc Chemical Engineers Serbia, Belgrade", journal = "Hemijska industrija", title = "The influence of modification on structural, textural and adsorption properties of bentonite, Uticaj modifikacije na strukturna, teksturalna i adsorpciona svojstva bentonita", volume = "62", number = "3", pages = "131-137", doi = "10.2298/HEMIND0803131J" }
Jović-Jovičić, N., Milutinović Nikolić, A., Gržetić, I., Banković, P., Marković, B. Ž.,& Jovanović, D. M.. (2008). The influence of modification on structural, textural and adsorption properties of bentonite. in Hemijska industrija Assoc Chemical Engineers Serbia, Belgrade., 62(3), 131-137. https://doi.org/10.2298/HEMIND0803131J
Jović-Jovičić N, Milutinović Nikolić A, Gržetić I, Banković P, Marković BŽ, Jovanović DM. The influence of modification on structural, textural and adsorption properties of bentonite. in Hemijska industrija. 2008;62(3):131-137. doi:10.2298/HEMIND0803131J .
Jović-Jovičić, Nataša, Milutinović Nikolić, Aleksandra, Gržetić, Ivan, Banković, Predrag, Marković, Branislav Ž., Jovanović, Dušan M., "The influence of modification on structural, textural and adsorption properties of bentonite" in Hemijska industrija, 62, no. 3 (2008):131-137, https://doi.org/10.2298/HEMIND0803131J . .