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Article

Molecularly Imprinted Polymers for the Removal of Antide-Pressants from Contaminated Wastewater

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Department of Environmental Sciences, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
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Jozef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia
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Department of Biomedical Sciences and Biofilms-Research Center for Biointerfaces (BRCB), Faculty of Health and Society, Malmö University, 20506 Malmö, Sweden
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School of Chemistry and Chemical Engineering, Queens University Belfast, Belfast BT9 5AG, UK
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Department of Biopharmacy and Pharmacokinetics, Faculty of Pharmacy, University of Ljubljana, Askerceva 7, 1000 Ljubljana, Slovenia
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Center for Electron Microscopy and Microanalysis (CEMM), Jamova 39, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Academic Editor: Marta Otero
Polymers 2021, 13(1), 120; https://doi.org/10.3390/polym13010120
Received: 24 November 2020 / Revised: 21 December 2020 / Accepted: 23 December 2020 / Published: 30 December 2020
Selective serotonin reuptake inhibitors (SSRIs) are a class of antidepressants regularly detected in the environment. This indicates that the existing wastewater treatment techniques are not successfully removing them beforehand. This study investigated the potential of molecularly imprinted polymers (MIPs) to serve as sorbents for removal of SSRIs in water treatment. Sertraline was chosen as the template for imprinting. We optimized the composition of MIPs in order to obtain materials with highest capacity, affinity, and selectivity for sertraline. We report the maximum capacity of MIP for sertraline in water at 72.6 mg g−1, and the maximum imprinting factor at 3.7. The MIPs were cross-reactive towards other SSRIs and the metabolite norsertraline. They showed a stable performance in wastewater-relevant pH range between 6 and 8, and were reusable after a short washing cycle. Despite having a smaller surface area between 27.4 and 193.8 m2·g−1, as compared to that of the activated carbon at 1400 m2·g−1, their sorption capabilities in wastewaters were generally superior. The MIPs with higher surface area and pore volume that formed more non-specific interactions with the targets considerably contributed to the overall removal efficiency, which made them better suited for use in wastewater treatment. View Full-Text
Keywords: molecular imprinting; polymer; wastewater treatment; sertraline; cross-reactivity; SSRI; template; sorbent molecular imprinting; polymer; wastewater treatment; sertraline; cross-reactivity; SSRI; template; sorbent
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MDPI and ACS Style

Gornik, T.; Shinde, S.; Lamovsek, L.; Koblar, M.; Heath, E.; Sellergren, B.; Kosjek, T. Molecularly Imprinted Polymers for the Removal of Antide-Pressants from Contaminated Wastewater. Polymers 2021, 13, 120. https://doi.org/10.3390/polym13010120

AMA Style

Gornik T, Shinde S, Lamovsek L, Koblar M, Heath E, Sellergren B, Kosjek T. Molecularly Imprinted Polymers for the Removal of Antide-Pressants from Contaminated Wastewater. Polymers. 2021; 13(1):120. https://doi.org/10.3390/polym13010120

Chicago/Turabian Style

Gornik, Tjasa, Sudhirkumar Shinde, Lea Lamovsek, Maja Koblar, Ester Heath, Börje Sellergren, and Tina Kosjek. 2021. "Molecularly Imprinted Polymers for the Removal of Antide-Pressants from Contaminated Wastewater" Polymers 13, no. 1: 120. https://doi.org/10.3390/polym13010120

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