TY  - JOUR
AU  - Dimitrijević, Silvana B.
AU  - Veličković, Suzana
AU  - Ivanović, Aleksandra T.
AU  - Veljković, Filip M.
AU  - Jovanović, Milan M.
AU  - Kamberović, Željko
AU  - Dimitrijević, Stevan P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10138
AB  - A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 °C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 °C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.
T2  - International Journal of Refractory Metals and Hard Materials
T2  - International Journal of Refractory Metals and Hard MaterialsInternational Journal of Refractory Metals and Hard Materials
T1  - Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching
VL  - 101
SP  - 105695
DO  - 10.1016/j.ijrmhm.2021.105695
ER  - 

@article{
author = "Dimitrijević, Silvana B. and Veličković, Suzana and Ivanović, Aleksandra T. and Veljković, Filip M. and Jovanović, Milan M. and Kamberović, Željko and Dimitrijević, Stevan P.",
year = "2021",
abstract = "A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 °C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 °C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.",
journal = "International Journal of Refractory Metals and Hard Materials, International Journal of Refractory Metals and Hard MaterialsInternational Journal of Refractory Metals and Hard Materials",
title = "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching",
volume = "101",
pages = "105695",
doi = "10.1016/j.ijrmhm.2021.105695"
}

Dimitrijević, S. B., Veličković, S., Ivanović, A. T., Veljković, F. M., Jovanović, M. M., Kamberović, Ž.,& Dimitrijević, S. P.. (2021). Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals and Hard Materials, 101, 105695.
https://doi.org/10.1016/j.ijrmhm.2021.105695

Dimitrijević SB, Veličković S, Ivanović AT, Veljković FM, Jovanović MM, Kamberović Ž, Dimitrijević SP. Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals and Hard Materials. 2021;101:105695.
doi:10.1016/j.ijrmhm.2021.105695 .

Dimitrijević, Silvana B., Veličković, Suzana, Ivanović, Aleksandra T., Veljković, Filip M., Jovanović, Milan M., Kamberović, Željko, Dimitrijević, Stevan P., "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching" in International Journal of Refractory Metals and Hard Materials, 101 (2021):105695,
https://doi.org/10.1016/j.ijrmhm.2021.105695 . .

TY  - JOUR
AU  - Jevtić, Sonja
AU  - Stefanović, Anđela
AU  - Stanković, Dalibor M.
AU  - Pergal, Marija V.
AU  - Ivanović, Aleksandra T.
AU  - Jokić, Anja
AU  - Petković, Branka B.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7589
AB  - Bentazone (BZ) is selective contact-past herbicide with suspected reproductive toxicity potential for human due to possible contamination of ground and surface waters. This work presents simple, rapid, sensitive and accurate determination of bentazone at unmodified boron-doped diamond electrode, using differential pulse voltammetry in Britton-Robinson buffer (pH 4, oxidation peak at 1.0 V). Under optimized DPV conditions linear calibration curve was obtained for range of 2 to 100 mu M, with a detection limit of 0.5 mu M. The effect of possible interfering agents is negligible, confirming good selectivity of the method. The method was successfully applied to determination of bentazone in spiked river water samples. This electrochemical determination of bentazone represents a favorable alternative to other used time-consuming and expensive analytical techniques and procedures.
T2  - Diamond and Related Materials
T1  - Boron-doped diamond electrode - A prestigious unmodified carbon electrode for simple and fast determination of bentazone in river water samples
VL  - 81
SP  - 133
EP  - 137
DO  - 10.1016/j.diamond.2017.12.009
ER  - 

@article{
author = "Jevtić, Sonja and Stefanović, Anđela and Stanković, Dalibor M. and Pergal, Marija V. and Ivanović, Aleksandra T. and Jokić, Anja and Petković, Branka B.",
year = "2018",
abstract = "Bentazone (BZ) is selective contact-past herbicide with suspected reproductive toxicity potential for human due to possible contamination of ground and surface waters. This work presents simple, rapid, sensitive and accurate determination of bentazone at unmodified boron-doped diamond electrode, using differential pulse voltammetry in Britton-Robinson buffer (pH 4, oxidation peak at 1.0 V). Under optimized DPV conditions linear calibration curve was obtained for range of 2 to 100 mu M, with a detection limit of 0.5 mu M. The effect of possible interfering agents is negligible, confirming good selectivity of the method. The method was successfully applied to determination of bentazone in spiked river water samples. This electrochemical determination of bentazone represents a favorable alternative to other used time-consuming and expensive analytical techniques and procedures.",
journal = "Diamond and Related Materials",
title = "Boron-doped diamond electrode - A prestigious unmodified carbon electrode for simple and fast determination of bentazone in river water samples",
volume = "81",
pages = "133-137",
doi = "10.1016/j.diamond.2017.12.009"
}

Jevtić, S., Stefanović, A., Stanković, D. M., Pergal, M. V., Ivanović, A. T., Jokić, A.,& Petković, B. B.. (2018). Boron-doped diamond electrode - A prestigious unmodified carbon electrode for simple and fast determination of bentazone in river water samples. in Diamond and Related Materials, 81, 133-137.
https://doi.org/10.1016/j.diamond.2017.12.009

Jevtić S, Stefanović A, Stanković DM, Pergal MV, Ivanović AT, Jokić A, Petković BB. Boron-doped diamond electrode - A prestigious unmodified carbon electrode for simple and fast determination of bentazone in river water samples. in Diamond and Related Materials. 2018;81:133-137.
doi:10.1016/j.diamond.2017.12.009 .

Jevtić, Sonja, Stefanović, Anđela, Stanković, Dalibor M., Pergal, Marija V., Ivanović, Aleksandra T., Jokić, Anja, Petković, Branka B., "Boron-doped diamond electrode - A prestigious unmodified carbon electrode for simple and fast determination of bentazone in river water samples" in Diamond and Related Materials, 81 (2018):133-137,
https://doi.org/10.1016/j.diamond.2017.12.009 . .