TY  - JOUR
AU  - Vukčević, Marija M.
AU  - Pejić, Biljana M.
AU  - Pajić-Lijaković, Ivana
AU  - Kalijadis, Ana
AU  - Kostić, Mirjana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1897
AB  - Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon
VL  - 82
IS  - 12
SP  - 1417
EP  - 1431
DO  - 10.2298/JSC170310080V
ER  - 

@article{
author = "Vukčević, Marija M. and Pejić, Biljana M. and Pajić-Lijaković, Ivana and Kalijadis, Ana and Kostić, Mirjana M. and Laušević, Zoran and Laušević, Mila D.",
year = "2017",
abstract = "Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon",
volume = "82",
number = "12",
pages = "1417-1431",
doi = "10.2298/JSC170310080V"
}

Vukčević, M. M., Pejić, B. M., Pajić-Lijaković, I., Kalijadis, A., Kostić, M. M., Laušević, Z.,& Laušević, M. D.. (2017). Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society, 82(12), 1417-1431.
https://doi.org/10.2298/JSC170310080V

Vukčević MM, Pejić BM, Pajić-Lijaković I, Kalijadis A, Kostić MM, Laušević Z, Laušević MD. Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society. 2017;82(12):1417-1431.
doi:10.2298/JSC170310080V .

Vukčević, Marija M., Pejić, Biljana M., Pajić-Lijaković, Ivana, Kalijadis, Ana, Kostić, Mirjana M., Laušević, Zoran, Laušević, Mila D., "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon" in Journal of the Serbian Chemical Society, 82, no. 12 (2017):1417-1431,
https://doi.org/10.2298/JSC170310080V . .