The adsorption properties of two zeolite types, faujasite (NaY, ZnY, CoY) and LTA-4A zeolite (NaA, ZnA, CoA), towards technetium were studied in batch static experiments. The Si/Al ratio, acidity, dealumination, chargebalance cations of zeolite, contact time and temperature determined the adsorption efficiency. The maximum removal efficiency of 98.8% and Kdvalue (2.06 × 10−4 cm3 g−1) was achieved using CoY (zeolite type Y). The kinetics of technetium adsorption followed the pseudo-second order model. The TcO2adsorption is mainly due to the hydrogen bonds between protons of the zeolitic structural OH groups (Bronsted acid center) and oxygen from the TcO2−.
Keywords:
technetium / zeolite / Adsorption / kinetics
Source:
Journal of Radioanalytical and Nuclear Chemistry, 2018, 317, 1, 215-225
TY - JOUR
AU - Hercigonja, Radmila V.
AU - Vranješ-Đurić, Sanja
AU - Mirković, Marija D.
AU - Marković, Bojana M.
AU - Maksin, Danijela D.
AU - Marković, Bojana N.
AU - Nastasović, Aleksandra B.
PY - 2018
UR - http://link.springer.com/10.1007/s10967-018-5893-2
UR - http://vinar.vin.bg.ac.rs/handle/123456789/7729
AB - The adsorption properties of two zeolite types, faujasite (NaY, ZnY, CoY) and LTA-4A zeolite (NaA, ZnA, CoA), towards technetium were studied in batch static experiments. The Si/Al ratio, acidity, dealumination, chargebalance cations of zeolite, contact time and temperature determined the adsorption efficiency. The maximum removal efficiency of 98.8% and Kdvalue (2.06 × 10−4 cm3 g−1) was achieved using CoY (zeolite type Y). The kinetics of technetium adsorption followed the pseudo-second order model. The TcO2adsorption is mainly due to the hydrogen bonds between protons of the zeolitic structural OH groups (Bronsted acid center) and oxygen from the TcO2−.
T2 - Journal of Radioanalytical and Nuclear Chemistry
T1 - Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+
VL - 317
IS - 1
SP - 215
EP - 225
DO - 10.1007/s10967-018-5893-2
ER -
@article{
author = "Hercigonja, Radmila V. and Vranješ-Đurić, Sanja and Mirković, Marija D. and Marković, Bojana M. and Maksin, Danijela D. and Marković, Bojana N. and Nastasović, Aleksandra B.",
year = "2018",
url = "http://link.springer.com/10.1007/s10967-018-5893-2, http://vinar.vin.bg.ac.rs/handle/123456789/7729",
abstract = "The adsorption properties of two zeolite types, faujasite (NaY, ZnY, CoY) and LTA-4A zeolite (NaA, ZnA, CoA), towards technetium were studied in batch static experiments. The Si/Al ratio, acidity, dealumination, chargebalance cations of zeolite, contact time and temperature determined the adsorption efficiency. The maximum removal efficiency of 98.8% and Kdvalue (2.06 × 10−4 cm3 g−1) was achieved using CoY (zeolite type Y). The kinetics of technetium adsorption followed the pseudo-second order model. The TcO2adsorption is mainly due to the hydrogen bonds between protons of the zeolitic structural OH groups (Bronsted acid center) and oxygen from the TcO2−.",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
title = "Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+",
volume = "317",
number = "1",
pages = "215-225",
doi = "10.1007/s10967-018-5893-2"
}
Hercigonja RV, Vranješ-Đurić S, Mirković MD, Marković BM, Maksin DD, Marković BN, Nastasović AB. Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+. Journal of Radioanalytical and Nuclear Chemistry. 2018;317(1):215-225
Hercigonja, R. V., Vranješ-Đurić, S., Mirković, M. D., Marković, B. M., Maksin, D. D., Marković, B. N.,& Nastasović, A. B. (2018). Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+.
Journal of Radioanalytical and Nuclear Chemistry, 317(1), 215-225.
https://doi.org/10.1007/s10967-018-5893-2
Hercigonja Radmila V., Vranješ-Đurić Sanja, Mirković Marija D., Marković Bojana M., Maksin Danijela D., Marković Bojana N., Nastasović Aleksandra B., "Technetium removal from the aqueous solution using zeolites A and Y containing transition metal ions Co2+ and Zn2+" 317, no. 1 (2018):215-225,
https://doi.org/10.1007/s10967-018-5893-2 .
, 