Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study
Abstract
The possibility of removal of pharmaceutically active substances, atenolol, diclofenac sodium and salicylic acid, from water solutions using hierarchical form of zeolite ZSM-5 is investigated in this paper. Mesopore formation in ZSM-5 was achieved using alkaline treatment. Zeolitic samples were characterized by X-ray diffraction, low temperature nitrogen adsorption, solid-state 27A1 MAS NMR, point of zero charge determination and microcalorimetry - volumetry of ammonia adsorption. Adsorption isotherms of pharmaceutically active substances were obtained and liquid calorimetric experiments were used to evaluate the strength of interactions. The capacity for salicylic acid adsorption measured for the mesoporous sample did not significantly differ from the results obtained for the parent ZSM-5. However, in the case of atenolol and diclofenac sodium, mesoporous ZSM-5 exhibited increased adsorption capacities. Calorimetric data revealed higher heats of atenolol adsorption on mesoporous ZSM-5..., compared to the parent. Based on similar acidity and surface charge determined for the two samples, our results show that geometry and dimensions of both zeolite pores and adsorbing molecules play a crucial role in the studied adsorption processes and that tailoring ZSM-5 porosity by desilication can be used to expand its applicability in depollution processes.
Keywords:
Hierarchical ZSM-5 / Pharmaceutically active compounds / Adsorption / Liquid calorimetrySource:
Arabian Journal of Chemistry, 2020, 13, 1, 1945-1954Publisher:
- Elsevier, Amsterdam
Funding / projects:
- Oxide-based environmentally-friendly porous materials for genotoxic substances removal (RS-MESTD-Basic Research (BR or ON)-172018)
DOI: 10.1016/j.arabjc.2018.02.012
ISSN: 1878-5352
WoS: 000505076000148
Scopus: 2-s2.0-85044355787
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Rac, Vladislav AU - Rakić, Vesna AU - Stošić, Dušan AU - Pavlović, Vladimir AU - Bosnar, Sanja AU - Auroux, Aline PY - 2020 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5365 AB - The possibility of removal of pharmaceutically active substances, atenolol, diclofenac sodium and salicylic acid, from water solutions using hierarchical form of zeolite ZSM-5 is investigated in this paper. Mesopore formation in ZSM-5 was achieved using alkaline treatment. Zeolitic samples were characterized by X-ray diffraction, low temperature nitrogen adsorption, solid-state 27A1 MAS NMR, point of zero charge determination and microcalorimetry - volumetry of ammonia adsorption. Adsorption isotherms of pharmaceutically active substances were obtained and liquid calorimetric experiments were used to evaluate the strength of interactions. The capacity for salicylic acid adsorption measured for the mesoporous sample did not significantly differ from the results obtained for the parent ZSM-5. However, in the case of atenolol and diclofenac sodium, mesoporous ZSM-5 exhibited increased adsorption capacities. Calorimetric data revealed higher heats of atenolol adsorption on mesoporous ZSM-5, compared to the parent. Based on similar acidity and surface charge determined for the two samples, our results show that geometry and dimensions of both zeolite pores and adsorbing molecules play a crucial role in the studied adsorption processes and that tailoring ZSM-5 porosity by desilication can be used to expand its applicability in depollution processes. PB - Elsevier, Amsterdam T2 - Arabian Journal of Chemistry T1 - Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study EP - 1954 IS - 1 SP - 1945 VL - 13 DO - 10.1016/j.arabjc.2018.02.012 ER -
@article{ author = "Rac, Vladislav and Rakić, Vesna and Stošić, Dušan and Pavlović, Vladimir and Bosnar, Sanja and Auroux, Aline", year = "2020", abstract = "The possibility of removal of pharmaceutically active substances, atenolol, diclofenac sodium and salicylic acid, from water solutions using hierarchical form of zeolite ZSM-5 is investigated in this paper. Mesopore formation in ZSM-5 was achieved using alkaline treatment. Zeolitic samples were characterized by X-ray diffraction, low temperature nitrogen adsorption, solid-state 27A1 MAS NMR, point of zero charge determination and microcalorimetry - volumetry of ammonia adsorption. Adsorption isotherms of pharmaceutically active substances were obtained and liquid calorimetric experiments were used to evaluate the strength of interactions. The capacity for salicylic acid adsorption measured for the mesoporous sample did not significantly differ from the results obtained for the parent ZSM-5. However, in the case of atenolol and diclofenac sodium, mesoporous ZSM-5 exhibited increased adsorption capacities. Calorimetric data revealed higher heats of atenolol adsorption on mesoporous ZSM-5, compared to the parent. Based on similar acidity and surface charge determined for the two samples, our results show that geometry and dimensions of both zeolite pores and adsorbing molecules play a crucial role in the studied adsorption processes and that tailoring ZSM-5 porosity by desilication can be used to expand its applicability in depollution processes.", publisher = "Elsevier, Amsterdam", journal = "Arabian Journal of Chemistry", title = "Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study", pages = "1954-1945", number = "1", volume = "13", doi = "10.1016/j.arabjc.2018.02.012" }
Rac, V., Rakić, V., Stošić, D., Pavlović, V., Bosnar, S.,& Auroux, A.. (2020). Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study. in Arabian Journal of Chemistry Elsevier, Amsterdam., 13(1), 1945-1954. https://doi.org/10.1016/j.arabjc.2018.02.012
Rac V, Rakić V, Stošić D, Pavlović V, Bosnar S, Auroux A. Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study. in Arabian Journal of Chemistry. 2020;13(1):1945-1954. doi:10.1016/j.arabjc.2018.02.012 .
Rac, Vladislav, Rakić, Vesna, Stošić, Dušan, Pavlović, Vladimir, Bosnar, Sanja, Auroux, Aline, "Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study" in Arabian Journal of Chemistry, 13, no. 1 (2020):1945-1954, https://doi.org/10.1016/j.arabjc.2018.02.012 . .