TY  - JOUR
AU  - Tomić, Zorica
AU  - Ašanin, Darko P.
AU  - Durović, Rada
AU  - Djordjević, Aleksandar
AU  - Makreski, Petre
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2973
AB  - NIR spectroscopy is used to determine acetochlor herbicide adsorption on Na-montmorillonite (NaP) and organically modified montmorillonite (NaOM). Both montmorillonites NIR spectra shows bands at 7061 and 6791 cm(-1). Organo-montmorillonite is characterised by two emphasized bands at 5871 and 5667 cm(-1) that are attributed to the fundamental overtones of the mid-IR bands at 2916 and 2850 cm(-1). Bands at 6017 and 6013 cm(-1) are attributed to acetochlor adsorbed to organo-montmorillonite and Na-montmorillonite, which is confirmed by X-ray powder diffraction (XRPD). Greater quantity of acetochlor is adsorbed to organo-clays compared to non-modified montmorillonite. Acetochlor poses high risk to environmental contamination. Organo-clays are the most useful for removing acetochlor from water and soil.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Near-infrared spectroscopy study for determination of adsorbed acetochlor in the organic and inorganic bentonites
EP  - 52
SP  - 47
VL  - 98
DO  - 10.1016/j.saa.2012.08.035
ER  - 

@article{
author = "Tomić, Zorica and Ašanin, Darko P. and Durović, Rada and Djordjević, Aleksandar and Makreski, Petre",
year = "2012",
abstract = "NIR spectroscopy is used to determine acetochlor herbicide adsorption on Na-montmorillonite (NaP) and organically modified montmorillonite (NaOM). Both montmorillonites NIR spectra shows bands at 7061 and 6791 cm(-1). Organo-montmorillonite is characterised by two emphasized bands at 5871 and 5667 cm(-1) that are attributed to the fundamental overtones of the mid-IR bands at 2916 and 2850 cm(-1). Bands at 6017 and 6013 cm(-1) are attributed to acetochlor adsorbed to organo-montmorillonite and Na-montmorillonite, which is confirmed by X-ray powder diffraction (XRPD). Greater quantity of acetochlor is adsorbed to organo-clays compared to non-modified montmorillonite. Acetochlor poses high risk to environmental contamination. Organo-clays are the most useful for removing acetochlor from water and soil.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Near-infrared spectroscopy study for determination of adsorbed acetochlor in the organic and inorganic bentonites",
pages = "52-47",
volume = "98",
doi = "10.1016/j.saa.2012.08.035"
}

Tomić, Z., Ašanin, D. P., Durović, R., Djordjević, A.,& Makreski, P.. (2012). Near-infrared spectroscopy study for determination of adsorbed acetochlor in the organic and inorganic bentonites. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 98, 47-52.
https://doi.org/10.1016/j.saa.2012.08.035

Tomić Z, Ašanin DP, Durović R, Djordjević A, Makreski P. Near-infrared spectroscopy study for determination of adsorbed acetochlor in the organic and inorganic bentonites. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2012;98:47-52.
doi:10.1016/j.saa.2012.08.035 .

Tomić, Zorica, Ašanin, Darko P., Durović, Rada, Djordjević, Aleksandar, Makreski, Petre, "Near-infrared spectroscopy study for determination of adsorbed acetochlor in the organic and inorganic bentonites" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 98 (2012):47-52,
https://doi.org/10.1016/j.saa.2012.08.035 . .

TY  - JOUR
AU  - Tomić, Zorica
AU  - Logar, Vesna P.
AU  - Babić, Biljana M.
AU  - Rogan, Jelena R.
AU  - Makreski, Petre
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2679
AB  - Bentonite samples collected from vicinity of Petrovac and Aleksinac were treated with different sulfuric acid molarities. Acid attack dissolved the octahedral sheets by interlayer and edge attack. The effects of the H2SO4 acid caused an exchange of Al3+, Fe3+ and Mg2+ with H. ions leading to a modification of the smectite crystalline structure. The Mg and Fe substitution in the octahedral sheets promoted the dispersion of corresponding layers and formation of amorphous silicon. The activated bentonites, after the treatment of sulfuric acid, exhibited a lower cation-exchange capacity (CEC)and significant increase of specific surface area from 6 to 387 m(2) g(-1) (bentonite from Petrovac) and from 11 to 306 m(2) g(-1) (bentonite from Aleksinac). The acid reaction caused a splitting of particles within the octahedral sheet which led to an increase in specific surface area and decrease in CEC in both bentonites.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Comparison of structural, textural and thermal characteristics of pure and acid treated bentonites from Aleksinac and Petrovac (Serbia)
EP  - 395
IS  - 1
SP  - 389
VL  - 82
DO  - 10.1016/j.saa.2011.07.068
ER  - 

@article{
author = "Tomić, Zorica and Logar, Vesna P. and Babić, Biljana M. and Rogan, Jelena R. and Makreski, Petre",
year = "2011",
abstract = "Bentonite samples collected from vicinity of Petrovac and Aleksinac were treated with different sulfuric acid molarities. Acid attack dissolved the octahedral sheets by interlayer and edge attack. The effects of the H2SO4 acid caused an exchange of Al3+, Fe3+ and Mg2+ with H. ions leading to a modification of the smectite crystalline structure. The Mg and Fe substitution in the octahedral sheets promoted the dispersion of corresponding layers and formation of amorphous silicon. The activated bentonites, after the treatment of sulfuric acid, exhibited a lower cation-exchange capacity (CEC)and significant increase of specific surface area from 6 to 387 m(2) g(-1) (bentonite from Petrovac) and from 11 to 306 m(2) g(-1) (bentonite from Aleksinac). The acid reaction caused a splitting of particles within the octahedral sheet which led to an increase in specific surface area and decrease in CEC in both bentonites.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Comparison of structural, textural and thermal characteristics of pure and acid treated bentonites from Aleksinac and Petrovac (Serbia)",
pages = "395-389",
number = "1",
volume = "82",
doi = "10.1016/j.saa.2011.07.068"
}

Tomić, Z., Logar, V. P., Babić, B. M., Rogan, J. R.,& Makreski, P.. (2011). Comparison of structural, textural and thermal characteristics of pure and acid treated bentonites from Aleksinac and Petrovac (Serbia). in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 82(1), 389-395.
https://doi.org/10.1016/j.saa.2011.07.068

Tomić Z, Logar VP, Babić BM, Rogan JR, Makreski P. Comparison of structural, textural and thermal characteristics of pure and acid treated bentonites from Aleksinac and Petrovac (Serbia). in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2011;82(1):389-395.
doi:10.1016/j.saa.2011.07.068 .

Tomić, Zorica, Logar, Vesna P., Babić, Biljana M., Rogan, Jelena R., Makreski, Petre, "Comparison of structural, textural and thermal characteristics of pure and acid treated bentonites from Aleksinac and Petrovac (Serbia)" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 82, no. 1 (2011):389-395,
https://doi.org/10.1016/j.saa.2011.07.068 . .