Natural clinoptilolite (CLI) exhibited a high efficacy in ciprofloxacin (CIP) removal from aqueous solution by adsorption. However, the regeneration of the spent adsorbent was a challenge since the adsorption occurred via electrostatic interactions and ion-exchange reaction. Herein, the feasibility of non-thermal plasma (NTP) was studied for the regeneration of ciprofloxacin-containing clinoptilolite (CIP-CLI) in five successive adsorption/NTP regeneration cycles. The NTP treatments were performed using a surface dielectric barrier discharge (SDBD) operating at atmospheric pressure in air. Plasma discharge gap, sample mass, and electrode surfaces were varied to find optimal regeneration parameters. For the plasma source with an electrode surface of 37.2 cm2, the 2 mm electrode gap and 20 min of plasma treatment were found as optimal parameters (sample mass of 0.2 g). The plasma treatment did not affect clinoptilolite features which were concluded from a study of textural properties and... powder X-ray diffraction (PXRD) analysis. X-ray photoelectron spectroscopy (XPS) showed a decrease of total carbon content with around 10% of carbon residual left on the surface. The CLI adsorption capacity can be regenerated to at least 90% of its initial capacity during the five successive cycles, showing the involvement of plasma reactive species in decomposition of adsorbed CIP.
This research was supported by the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement, MSCA-ITN-2018 [grant number 812880]
TY - JOUR
AU - Kalebić, Barbara
AU - Škoro, Nikola
AU - Kovač, Janez
AU - Rajić, Nevenka
PY - 2022
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5066
AB - Natural clinoptilolite (CLI) exhibited a high efficacy in ciprofloxacin (CIP) removal from aqueous solution by adsorption. However, the regeneration of the spent adsorbent was a challenge since the adsorption occurred via electrostatic interactions and ion-exchange reaction. Herein, the feasibility of non-thermal plasma (NTP) was studied for the regeneration of ciprofloxacin-containing clinoptilolite (CIP-CLI) in five successive adsorption/NTP regeneration cycles. The NTP treatments were performed using a surface dielectric barrier discharge (SDBD) operating at atmospheric pressure in air. Plasma discharge gap, sample mass, and electrode surfaces were varied to find optimal regeneration parameters. For the plasma source with an electrode surface of 37.2 cm2, the 2 mm electrode gap and 20 min of plasma treatment were found as optimal parameters (sample mass of 0.2 g). The plasma treatment did not affect clinoptilolite features which were concluded from a study of textural properties and powder X-ray diffraction (PXRD) analysis. X-ray photoelectron spectroscopy (XPS) showed a decrease of total carbon content with around 10% of carbon residual left on the surface. The CLI adsorption capacity can be regenerated to at least 90% of its initial capacity during the five successive cycles, showing the involvement of plasma reactive species in decomposition of adsorbed CIP.
PB - Elsevier
T2 - Applied Surface Science
T1 - Regeneration of the ciprofloxacin-loaded clinoptilolite by non-thermal atmospheric plasma
SP - 153379
SP - 153379
VL - 593
DO - doi.org/10.1016/j.apsusc.2022.153379
ER -
@article{
author = "Kalebić, Barbara and Škoro, Nikola and Kovač, Janez and Rajić, Nevenka",
year = "2022",
abstract = "Natural clinoptilolite (CLI) exhibited a high efficacy in ciprofloxacin (CIP) removal from aqueous solution by adsorption. However, the regeneration of the spent adsorbent was a challenge since the adsorption occurred via electrostatic interactions and ion-exchange reaction. Herein, the feasibility of non-thermal plasma (NTP) was studied for the regeneration of ciprofloxacin-containing clinoptilolite (CIP-CLI) in five successive adsorption/NTP regeneration cycles. The NTP treatments were performed using a surface dielectric barrier discharge (SDBD) operating at atmospheric pressure in air. Plasma discharge gap, sample mass, and electrode surfaces were varied to find optimal regeneration parameters. For the plasma source with an electrode surface of 37.2 cm2, the 2 mm electrode gap and 20 min of plasma treatment were found as optimal parameters (sample mass of 0.2 g). The plasma treatment did not affect clinoptilolite features which were concluded from a study of textural properties and powder X-ray diffraction (PXRD) analysis. X-ray photoelectron spectroscopy (XPS) showed a decrease of total carbon content with around 10% of carbon residual left on the surface. The CLI adsorption capacity can be regenerated to at least 90% of its initial capacity during the five successive cycles, showing the involvement of plasma reactive species in decomposition of adsorbed CIP.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Regeneration of the ciprofloxacin-loaded clinoptilolite by non-thermal atmospheric plasma",
pages = "153379-153379",
volume = "593",
doi = "doi.org/10.1016/j.apsusc.2022.153379"
}
Kalebić, B., Škoro, N., Kovač, J.,& Rajić, N.. (2022). Regeneration of the ciprofloxacin-loaded clinoptilolite by non-thermal atmospheric plasma. in Applied Surface Science
Elsevier., 593, 153379.
https://doi.org/doi.org/10.1016/j.apsusc.2022.153379
Kalebić B, Škoro N, Kovač J, Rajić N. Regeneration of the ciprofloxacin-loaded clinoptilolite by non-thermal atmospheric plasma. in Applied Surface Science. 2022;593:153379.
doi:doi.org/10.1016/j.apsusc.2022.153379 .
Kalebić, Barbara, Škoro, Nikola, Kovač, Janez, Rajić, Nevenka, "Regeneration of the ciprofloxacin-loaded clinoptilolite by non-thermal atmospheric plasma" in Applied Surface Science, 593 (2022):153379,
https://doi.org/doi.org/10.1016/j.apsusc.2022.153379 . .
