Ciprofloxacin removal using sepiolite-based adsorbents
Authors
Marjanović, VesnaJanković-Častvan, Ivona
Lazarević, Slavica
Radovanović, Željko
Janaćković, Đorđe
Petrović, Rada
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Ciprofloxacin (CIP) as a broad-spectrum quinolone antibiotic is extensively used in daily life and can be detected in municipal and pharmaceutical wastewaters, as well as natural waters. In this study, natural mineral sepiolite (SEP), SEP modified with hexadecyltrimethylammonium-bromide (HDAB) and SEP composites with graphene oxide (GO) were used as adsorbents for the removal of CIP from aqueous solutions. The composites were prepared at a mass ratio SEP to GO of 2 : 1, using SEP and SEP modified by [3-(2-aminoethylamino)propyl]trimethoxy-silane (APT). Thermogravimetric analysis, X-ray diffraction and nitrogen adsorption-desorption were used to characterize the obtained adsorbents. The adsorption of CIP was investigated at the pH value close to pH of natural waters. The concentration of CIP in aqueous solution was determined by UV-Vis spectroscopy. GO showed the highest adsorption capacity (~ 150 mg/g). The capacity of SEP was about 60 mg/g, while the SEP modification with HDAB has led... to a decrease in the adsorption capacity (~ 35 mg/g). The composite SEP/GO showed the higher adsorption capacity (~ 110 mg/g) than the composite SEP-APT/GO (~ 40 mg/g). The capacity of the composite SEP/GO was higher than of mixture of SEP and GO, which indicated a certain degree of GO exfoliation and intecalation of sepiolie particles, as it was shown by X-ray diffraction. Equilibrium data for all adsorbents, except for HDAB modified sepiolite, fitted well to the Langmuir isotherm model.
Keywords:
Adsorption, Ciprofloxacin, Sepiolite, Graphene oxideSource:
2nd International Conference on Advanced Production and Processing, Book of abstracts, 2022, 218-Publisher:
- University of Novi Sad, Faculty of Technology Novi Sad
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200287 (Innovation Center of the Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200287)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
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Tehnološko-metalurški fakultetTY - CONF AU - Marjanović, Vesna AU - Janković-Častvan, Ivona AU - Lazarević, Slavica AU - Radovanović, Željko AU - Janaćković, Đorđe AU - Petrović, Rada PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5920 AB - Ciprofloxacin (CIP) as a broad-spectrum quinolone antibiotic is extensively used in daily life and can be detected in municipal and pharmaceutical wastewaters, as well as natural waters. In this study, natural mineral sepiolite (SEP), SEP modified with hexadecyltrimethylammonium-bromide (HDAB) and SEP composites with graphene oxide (GO) were used as adsorbents for the removal of CIP from aqueous solutions. The composites were prepared at a mass ratio SEP to GO of 2 : 1, using SEP and SEP modified by [3-(2-aminoethylamino)propyl]trimethoxy-silane (APT). Thermogravimetric analysis, X-ray diffraction and nitrogen adsorption-desorption were used to characterize the obtained adsorbents. The adsorption of CIP was investigated at the pH value close to pH of natural waters. The concentration of CIP in aqueous solution was determined by UV-Vis spectroscopy. GO showed the highest adsorption capacity (~ 150 mg/g). The capacity of SEP was about 60 mg/g, while the SEP modification with HDAB has led to a decrease in the adsorption capacity (~ 35 mg/g). The composite SEP/GO showed the higher adsorption capacity (~ 110 mg/g) than the composite SEP-APT/GO (~ 40 mg/g). The capacity of the composite SEP/GO was higher than of mixture of SEP and GO, which indicated a certain degree of GO exfoliation and intecalation of sepiolie particles, as it was shown by X-ray diffraction. Equilibrium data for all adsorbents, except for HDAB modified sepiolite, fitted well to the Langmuir isotherm model. PB - University of Novi Sad, Faculty of Technology Novi Sad C3 - 2nd International Conference on Advanced Production and Processing, Book of abstracts T1 - Ciprofloxacin removal using sepiolite-based adsorbents SP - 218 SP - 218 UR - https://hdl.handle.net/21.15107/rcub_technorep_5920 ER -
@conference{ author = "Marjanović, Vesna and Janković-Častvan, Ivona and Lazarević, Slavica and Radovanović, Željko and Janaćković, Đorđe and Petrović, Rada", year = "2022", abstract = "Ciprofloxacin (CIP) as a broad-spectrum quinolone antibiotic is extensively used in daily life and can be detected in municipal and pharmaceutical wastewaters, as well as natural waters. In this study, natural mineral sepiolite (SEP), SEP modified with hexadecyltrimethylammonium-bromide (HDAB) and SEP composites with graphene oxide (GO) were used as adsorbents for the removal of CIP from aqueous solutions. The composites were prepared at a mass ratio SEP to GO of 2 : 1, using SEP and SEP modified by [3-(2-aminoethylamino)propyl]trimethoxy-silane (APT). Thermogravimetric analysis, X-ray diffraction and nitrogen adsorption-desorption were used to characterize the obtained adsorbents. The adsorption of CIP was investigated at the pH value close to pH of natural waters. The concentration of CIP in aqueous solution was determined by UV-Vis spectroscopy. GO showed the highest adsorption capacity (~ 150 mg/g). The capacity of SEP was about 60 mg/g, while the SEP modification with HDAB has led to a decrease in the adsorption capacity (~ 35 mg/g). The composite SEP/GO showed the higher adsorption capacity (~ 110 mg/g) than the composite SEP-APT/GO (~ 40 mg/g). The capacity of the composite SEP/GO was higher than of mixture of SEP and GO, which indicated a certain degree of GO exfoliation and intecalation of sepiolie particles, as it was shown by X-ray diffraction. Equilibrium data for all adsorbents, except for HDAB modified sepiolite, fitted well to the Langmuir isotherm model.", publisher = "University of Novi Sad, Faculty of Technology Novi Sad", journal = "2nd International Conference on Advanced Production and Processing, Book of abstracts", title = "Ciprofloxacin removal using sepiolite-based adsorbents", pages = "218-218", url = "https://hdl.handle.net/21.15107/rcub_technorep_5920" }
Marjanović, V., Janković-Častvan, I., Lazarević, S., Radovanović, Ž., Janaćković, Đ.,& Petrović, R.. (2022). Ciprofloxacin removal using sepiolite-based adsorbents. in 2nd International Conference on Advanced Production and Processing, Book of abstracts University of Novi Sad, Faculty of Technology Novi Sad., 218. https://hdl.handle.net/21.15107/rcub_technorep_5920
Marjanović V, Janković-Častvan I, Lazarević S, Radovanović Ž, Janaćković Đ, Petrović R. Ciprofloxacin removal using sepiolite-based adsorbents. in 2nd International Conference on Advanced Production and Processing, Book of abstracts. 2022;:218. https://hdl.handle.net/21.15107/rcub_technorep_5920 .
Marjanović, Vesna, Janković-Častvan, Ivona, Lazarević, Slavica, Radovanović, Željko, Janaćković, Đorđe, Petrović, Rada, "Ciprofloxacin removal using sepiolite-based adsorbents" in 2nd International Conference on Advanced Production and Processing, Book of abstracts (2022):218, https://hdl.handle.net/21.15107/rcub_technorep_5920 .