TY  - JOUR
AU  - Kaludjerović, Lazar
AU  - Tomić, Zorica
AU  - Ašanin, Darko P.
AU  - Durović-Pejcev, Rada D.
AU  - Kresović, Branka
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4667
AB  - The results presented in this paper show an impact of the concentration of the aromatic organic cation on the adsorption of acetochlor on the surface of the organic-modified montmorillonite. Natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification in this experiment. Cation exchange capacity of this montmorillonite (86mmol 100g(-1) of clay) was determined using the methylene blue method. In pretreatment, montmorillonite was modified with NaCl. For the purpose of organic modification, three different concentrations of phenyltrimethylammonium chloride (PTMA) have been selected, based on calculated CEC value: 43mmol 100g(-1) of clay (0.5 CEC), 86mmol 100g(-1) of clay (1 CEC) and 129mmol 100g(-1) of clay (1.5 CEC). The changes in the properties of the inorganic and organic modified montmorillonite were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and batch equilibrium method. Freundlich coefficients show higher uptake of the herbicide by montmorillonite modified with PTMA, compared to inorganic-modified montmorillonite. The results also indicate the influence of the organic cation concentration on the adsorption of the selected herbicide.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
T1  - Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite
EP  - 509
IS  - 8
SP  - 503
VL  - 53
DO  - 10.1080/03601234.2018.1462930
ER  - 

@article{
author = "Kaludjerović, Lazar and Tomić, Zorica and Ašanin, Darko P. and Durović-Pejcev, Rada D. and Kresović, Branka",
year = "2018",
abstract = "The results presented in this paper show an impact of the concentration of the aromatic organic cation on the adsorption of acetochlor on the surface of the organic-modified montmorillonite. Natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification in this experiment. Cation exchange capacity of this montmorillonite (86mmol 100g(-1) of clay) was determined using the methylene blue method. In pretreatment, montmorillonite was modified with NaCl. For the purpose of organic modification, three different concentrations of phenyltrimethylammonium chloride (PTMA) have been selected, based on calculated CEC value: 43mmol 100g(-1) of clay (0.5 CEC), 86mmol 100g(-1) of clay (1 CEC) and 129mmol 100g(-1) of clay (1.5 CEC). The changes in the properties of the inorganic and organic modified montmorillonite were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and batch equilibrium method. Freundlich coefficients show higher uptake of the herbicide by montmorillonite modified with PTMA, compared to inorganic-modified montmorillonite. The results also indicate the influence of the organic cation concentration on the adsorption of the selected herbicide.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was",
title = "Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite",
pages = "509-503",
number = "8",
volume = "53",
doi = "10.1080/03601234.2018.1462930"
}

Kaludjerović, L., Tomić, Z., Ašanin, D. P., Durović-Pejcev, R. D.,& Kresović, B.. (2018). Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
Taylor & Francis Inc, Philadelphia., 53(8), 503-509.
https://doi.org/10.1080/03601234.2018.1462930

Kaludjerović L, Tomić Z, Ašanin DP, Durović-Pejcev RD, Kresović B. Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was. 2018;53(8):503-509.
doi:10.1080/03601234.2018.1462930 .

Kaludjerović, Lazar, Tomić, Zorica, Ašanin, Darko P., Durović-Pejcev, Rada D., Kresović, Branka, "Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite" in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was, 53, no. 8 (2018):503-509,
https://doi.org/10.1080/03601234.2018.1462930 . .

TY  - JOUR
AU  - Kaludjerović, Lazar
AU  - Tomić, Zorica
AU  - Durović-Pejcev, Rada D.
AU  - Vulić, Predrag J.
AU  - Ašanin, Darko P.
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4337
AB  - This study was undertaken to determine the impact of the organic complex concentration on the adsorption of herbicide (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification. Cation-exchange capacity of this montmorillonite was determined using a methylene blue method (86mmol/100g of clay). Montmorillonite has been modified first with NaCl and then with hexadecyltrimethylammonium bromide (HDTMA-bromide) organic complex. Saturation of cation exchange capacity (CEC) was 50%, 100%, and 150%. Changes in the properties of the inorganic and organic montmorillonite have been examined using the X-ray diffraction, Fourier transform infrared spectroscopy, and batch equilibrium method. Montmorillonite modified with HDTMA-bromide demonstrated higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, it can be seen that the adsorption of acetochlor decreased in the series: 0.5 CEC HM > 1 CEC HM > 1.5 CEC HM > NaM.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
T1  - Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite
EP  - 297
IS  - 5
SP  - 291
VL  - 52
DO  - 10.1080/03601234.2017.1281636
ER  - 

@article{
author = "Kaludjerović, Lazar and Tomić, Zorica and Durović-Pejcev, Rada D. and Vulić, Predrag J. and Ašanin, Darko P.",
year = "2017",
abstract = "This study was undertaken to determine the impact of the organic complex concentration on the adsorption of herbicide (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification. Cation-exchange capacity of this montmorillonite was determined using a methylene blue method (86mmol/100g of clay). Montmorillonite has been modified first with NaCl and then with hexadecyltrimethylammonium bromide (HDTMA-bromide) organic complex. Saturation of cation exchange capacity (CEC) was 50%, 100%, and 150%. Changes in the properties of the inorganic and organic montmorillonite have been examined using the X-ray diffraction, Fourier transform infrared spectroscopy, and batch equilibrium method. Montmorillonite modified with HDTMA-bromide demonstrated higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, it can be seen that the adsorption of acetochlor decreased in the series: 0.5 CEC HM > 1 CEC HM > 1.5 CEC HM > NaM.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was",
title = "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite",
pages = "297-291",
number = "5",
volume = "52",
doi = "10.1080/03601234.2017.1281636"
}

Kaludjerović, L., Tomić, Z., Durović-Pejcev, R. D., Vulić, P. J.,& Ašanin, D. P.. (2017). Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
Taylor & Francis Inc, Philadelphia., 52(5), 291-297.
https://doi.org/10.1080/03601234.2017.1281636

Kaludjerović L, Tomić Z, Durović-Pejcev RD, Vulić PJ, Ašanin DP. Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was. 2017;52(5):291-297.
doi:10.1080/03601234.2017.1281636 .

Kaludjerović, Lazar, Tomić, Zorica, Durović-Pejcev, Rada D., Vulić, Predrag J., Ašanin, Darko P., "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite" in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was, 52, no. 5 (2017):291-297,
https://doi.org/10.1080/03601234.2017.1281636 . .

TY  - JOUR
AU  - Tomić, Zorica
AU  - Ašanin, Darko P.
AU  - Durović-Pejcev, Rada D.
AU  - Djordjević, Aleksandar
AU  - Makreski, Petre
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3832
AB  - The results of sorption of acetochlor herbicide with different concentrations (1-15 mu g/mL) in inorganic- and organic-modified bentonite are presented. Acetochlor sorption in both bentonite types was studied by attenuated total reflectance spectroscopy in the mid-infrared region and by batch equilibrium method. Infrared spectroscopy results suggest that the interaction of acetochlor with inorganic (or organic) bentonite takes place by mechanism involving the carbonyl stretching vibration and phenyl ring in the acetochlor molecule. The increase of the acetochlor concentration results in red shift of both corresponding band wavenumbers. Batch adsorption study pointed out more expressed sorption of acetochlor in organic bentonite.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Spectroscopy Letters
T1  - Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption
EP  - 690
IS  - 9
SP  - 685
VL  - 48
DO  - 10.1080/00387010.2014.962705
ER  - 

@article{
author = "Tomić, Zorica and Ašanin, Darko P. and Durović-Pejcev, Rada D. and Djordjević, Aleksandar and Makreski, Petre",
year = "2015",
abstract = "The results of sorption of acetochlor herbicide with different concentrations (1-15 mu g/mL) in inorganic- and organic-modified bentonite are presented. Acetochlor sorption in both bentonite types was studied by attenuated total reflectance spectroscopy in the mid-infrared region and by batch equilibrium method. Infrared spectroscopy results suggest that the interaction of acetochlor with inorganic (or organic) bentonite takes place by mechanism involving the carbonyl stretching vibration and phenyl ring in the acetochlor molecule. The increase of the acetochlor concentration results in red shift of both corresponding band wavenumbers. Batch adsorption study pointed out more expressed sorption of acetochlor in organic bentonite.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Spectroscopy Letters",
title = "Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption",
pages = "690-685",
number = "9",
volume = "48",
doi = "10.1080/00387010.2014.962705"
}

Tomić, Z., Ašanin, D. P., Durović-Pejcev, R. D., Djordjević, A.,& Makreski, P.. (2015). Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption. in Spectroscopy Letters
Taylor & Francis Inc, Philadelphia., 48(9), 685-690.
https://doi.org/10.1080/00387010.2014.962705

Tomić Z, Ašanin DP, Durović-Pejcev RD, Djordjević A, Makreski P. Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption. in Spectroscopy Letters. 2015;48(9):685-690.
doi:10.1080/00387010.2014.962705 .

Tomić, Zorica, Ašanin, Darko P., Durović-Pejcev, Rada D., Djordjević, Aleksandar, Makreski, Petre, "Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption" in Spectroscopy Letters, 48, no. 9 (2015):685-690,
https://doi.org/10.1080/00387010.2014.962705 . .

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  - Ašanin, Darko P.
AU  - Antić-Mladenović, Svetlana
AU  - Poharc-Logar, Vesna
AU  - Makreski, Petre
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3028
AB  - Near-infrared (NIR) and mid-infrared (MIR) spectroscopy are irreplaceable methods for characterization of bentonites. The paper presents work on bentonites modified with inorganic Na+ and organic HDTMA(+) (hexaclecyltrimethylammonium) cations and treated by 1.5, 3, 4.5 and 6M H2SO4. The characterization was based on the assignment of the stretching (nu) and bending (delta) vibrations observed in the MIR region and the first overtone [2 nu(R-H)] and combination [nu(R-H)+delta(R-H)] modes of R-H groups (R=O, C) in the NIR region. NIR spectrum shows the characteristic OH and CH bonds for organomontmorillonite. The effect of larger alkylammonium cations on the vibrations of Si-O and OH bonds in montmorillonite layers is observed. A few key-bands in the NIR region show the change of water in the interlayer montmorillonite. The intensities of the overtone (7080 and 6840cm(-1)) and combination (5242cm(-1)) bands of H2O have considerably decreased as a result of hydrophobic character of the NaOM. Spectra of acid-treated samples show a gradual decrease in the intensities of the OH overtone (near 7100-7000cm(-1)) and combination bands (4600-4300cm(-1)) reflecting a fewer number of octahedral atoms. This paper also points out that ATR technique and the 2nd derivative spectrum enables much precise band assignment.
PB  - Elsevier, Amsterdam
T2  - Vibrational Spectroscopy
T1  - NIR and MIR spectroscopic characteristics of hydrophilic and hydrophobic bentonite treated with sulphuric acid
EP  - 103
SP  - 95
VL  - 58
DO  - 10.1016/j.vibspec.2011.11.002
ER  - 

@article{
author = "Tomić, Zorica and Ašanin, Darko P. and Antić-Mladenović, Svetlana and Poharc-Logar, Vesna and Makreski, Petre",
year = "2012",
abstract = "Near-infrared (NIR) and mid-infrared (MIR) spectroscopy are irreplaceable methods for characterization of bentonites. The paper presents work on bentonites modified with inorganic Na+ and organic HDTMA(+) (hexaclecyltrimethylammonium) cations and treated by 1.5, 3, 4.5 and 6M H2SO4. The characterization was based on the assignment of the stretching (nu) and bending (delta) vibrations observed in the MIR region and the first overtone [2 nu(R-H)] and combination [nu(R-H)+delta(R-H)] modes of R-H groups (R=O, C) in the NIR region. NIR spectrum shows the characteristic OH and CH bonds for organomontmorillonite. The effect of larger alkylammonium cations on the vibrations of Si-O and OH bonds in montmorillonite layers is observed. A few key-bands in the NIR region show the change of water in the interlayer montmorillonite. The intensities of the overtone (7080 and 6840cm(-1)) and combination (5242cm(-1)) bands of H2O have considerably decreased as a result of hydrophobic character of the NaOM. Spectra of acid-treated samples show a gradual decrease in the intensities of the OH overtone (near 7100-7000cm(-1)) and combination bands (4600-4300cm(-1)) reflecting a fewer number of octahedral atoms. This paper also points out that ATR technique and the 2nd derivative spectrum enables much precise band assignment.",
publisher = "Elsevier, Amsterdam",
journal = "Vibrational Spectroscopy",
title = "NIR and MIR spectroscopic characteristics of hydrophilic and hydrophobic bentonite treated with sulphuric acid",
pages = "103-95",
volume = "58",
doi = "10.1016/j.vibspec.2011.11.002"
}

Tomić, Z., Ašanin, D. P., Antić-Mladenović, S., Poharc-Logar, V.,& Makreski, P.. (2012). NIR and MIR spectroscopic characteristics of hydrophilic and hydrophobic bentonite treated with sulphuric acid. in Vibrational Spectroscopy
Elsevier, Amsterdam., 58, 95-103.
https://doi.org/10.1016/j.vibspec.2011.11.002

Tomić Z, Ašanin DP, Antić-Mladenović S, Poharc-Logar V, Makreski P. NIR and MIR spectroscopic characteristics of hydrophilic and hydrophobic bentonite treated with sulphuric acid. in Vibrational Spectroscopy. 2012;58:95-103.
doi:10.1016/j.vibspec.2011.11.002 .

Tomić, Zorica, Ašanin, Darko P., Antić-Mladenović, Svetlana, Poharc-Logar, Vesna, Makreski, Petre, "NIR and MIR spectroscopic characteristics of hydrophilic and hydrophobic bentonite treated with sulphuric acid" in Vibrational Spectroscopy, 58 (2012):95-103,
https://doi.org/10.1016/j.vibspec.2011.11.002 . .