TY  - JOUR
AU  - Jevrosimov, Irina
AU  - Kragulj-Isakovski, Marijana
AU  - Apostolović, Tamara
AU  - Maletić, Snežana
AU  - Razić, Slavica
AU  - Mihajlović, Marija
AU  - Tricković, Jelena
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/591
AB  - This work investigates the adsorption mechanism of alachlor and pentachlorobenzene on chars (hydrochars and biochars) originated from Miscanthus giganteus and sugar beet shreds. Two different processes were used: hydrothermal conversion at three temperatures (180, 200, and 220 degrees C) and slow pyrolysis at 400 degrees C. Specific surface area (SSA) for all investigated chars ranged 3.87-260 m(2)/g, whereby biochars had a higher SSA. For hydrochars from sugar beet shreds, both the SSA (3.87-5.53 m(2)/g) and pore volume (0.023-0.0277 cm(3)/g) increased with increasing temperature, while the opposite trend was observed for hydrochars from miscanthus. The opposite trend could be a consequence of the different chemical composition of the used feedstock such as hemicelluloses and cellulose which can produce volatile organic products at higher temperatures and may cause the reduction of SSA. All adsorption isotherms were well described by the Freundlich model. The nonlinearity of the isotherms ranged from 0.450 to 0.986. K-d values for both investigated compounds followed the order: hydrochars from sugar beet shred  LT  hydrochars from miscanthus  LT  biochars, implying that the SSA of the chars affects the adsorption mechanism. In general, all the investigated adsorbents demonstrated higher adsorption affinity for pentachlorobenzene in comparison with alachlor, implying that hydrophobic interactions enhanced the adsorption of the more hydrophobic organic compound. In addition, for all hydrochars, adsorption affinities for the smaller pentachlorobenzene are significantly greater than for the larger alachlor, probably due to its ability to better penetrate into the pores of the adsorbents. This type of research is necessary to obtain safe adsorbents for water remediation.
PB  - Springer International Publishing Ag, Cham
T2  - Chemical Papers
T1  - Mechanisms of alachlor and pentachlorobenzene adsorption on biochar and hydrochar originating from Miscanthus giganteus and sugar beet shreds
EP  - 2120
IS  - 5
SP  - 2105
VL  - 75
DO  - 10.1007/s11696-020-01439-0
UR  - conv_899
ER  - 

@article{
author = "Jevrosimov, Irina and Kragulj-Isakovski, Marijana and Apostolović, Tamara and Maletić, Snežana and Razić, Slavica and Mihajlović, Marija and Tricković, Jelena",
year = "2021",
abstract = "This work investigates the adsorption mechanism of alachlor and pentachlorobenzene on chars (hydrochars and biochars) originated from Miscanthus giganteus and sugar beet shreds. Two different processes were used: hydrothermal conversion at three temperatures (180, 200, and 220 degrees C) and slow pyrolysis at 400 degrees C. Specific surface area (SSA) for all investigated chars ranged 3.87-260 m(2)/g, whereby biochars had a higher SSA. For hydrochars from sugar beet shreds, both the SSA (3.87-5.53 m(2)/g) and pore volume (0.023-0.0277 cm(3)/g) increased with increasing temperature, while the opposite trend was observed for hydrochars from miscanthus. The opposite trend could be a consequence of the different chemical composition of the used feedstock such as hemicelluloses and cellulose which can produce volatile organic products at higher temperatures and may cause the reduction of SSA. All adsorption isotherms were well described by the Freundlich model. The nonlinearity of the isotherms ranged from 0.450 to 0.986. K-d values for both investigated compounds followed the order: hydrochars from sugar beet shred  LT  hydrochars from miscanthus  LT  biochars, implying that the SSA of the chars affects the adsorption mechanism. In general, all the investigated adsorbents demonstrated higher adsorption affinity for pentachlorobenzene in comparison with alachlor, implying that hydrophobic interactions enhanced the adsorption of the more hydrophobic organic compound. In addition, for all hydrochars, adsorption affinities for the smaller pentachlorobenzene are significantly greater than for the larger alachlor, probably due to its ability to better penetrate into the pores of the adsorbents. This type of research is necessary to obtain safe adsorbents for water remediation.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Chemical Papers",
title = "Mechanisms of alachlor and pentachlorobenzene adsorption on biochar and hydrochar originating from Miscanthus giganteus and sugar beet shreds",
pages = "2120-2105",
number = "5",
volume = "75",
doi = "10.1007/s11696-020-01439-0",
url = "conv_899"
}

Jevrosimov, I., Kragulj-Isakovski, M., Apostolović, T., Maletić, S., Razić, S., Mihajlović, M.,& Tricković, J.. (2021). Mechanisms of alachlor and pentachlorobenzene adsorption on biochar and hydrochar originating from Miscanthus giganteus and sugar beet shreds. in Chemical Papers
Springer International Publishing Ag, Cham., 75(5), 2105-2120.
https://doi.org/10.1007/s11696-020-01439-0
conv_899

Jevrosimov I, Kragulj-Isakovski M, Apostolović T, Maletić S, Razić S, Mihajlović M, Tricković J. Mechanisms of alachlor and pentachlorobenzene adsorption on biochar and hydrochar originating from Miscanthus giganteus and sugar beet shreds. in Chemical Papers. 2021;75(5):2105-2120.
doi:10.1007/s11696-020-01439-0
conv_899 .

Jevrosimov, Irina, Kragulj-Isakovski, Marijana, Apostolović, Tamara, Maletić, Snežana, Razić, Slavica, Mihajlović, Marija, Tricković, Jelena, "Mechanisms of alachlor and pentachlorobenzene adsorption on biochar and hydrochar originating from Miscanthus giganteus and sugar beet shreds" in Chemical Papers, 75, no. 5 (2021):2105-2120,
https://doi.org/10.1007/s11696-020-01439-0 .,
conv_899 .