Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium
Modified phillipsite samples were prepared with two different amounts (monolayer and bilayer coverage) of surfactants octadecyldimethylbenzylammonium chloride (O) and dodecylamine (D). Composites were characterized by Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR–AT...
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2022-12-01
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| author | Danijela Smiljanić Aleksandra Daković Milena Obradović Milica Ožegović Marija Marković George E. Rottinghaus Bruno de Gennaro |
| author_facet | Danijela Smiljanić Aleksandra Daković Milena Obradović Milica Ožegović Marija Marković George E. Rottinghaus Bruno de Gennaro |
| author_sort | Danijela Smiljanić |
| collection | DOAJ |
| description | Modified phillipsite samples were prepared with two different amounts (monolayer and bilayer coverage) of surfactants octadecyldimethylbenzylammonium chloride (O) and dodecylamine (D). Composites were characterized by Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR–ATR), thermal analysis and determination of zeta potential, and subsequently tested for removal of diclofenac sodium (DCF). Drug adsorption experiments were performed under different initial DCF concentrations and different contact times. In order to investigate the influence of the chemical structure of surfactants used for modification of phillipsite on the preparation and properties of composites and DCF adsorption, experimental data were compared with previously published results on DCF adsorption by composites containing phillipsite and the same amounts of surfactants cetylpyridinium chloride (C) and Arquad<sup>®</sup>2HT-75 (A). DCF adsorption isotherms for O and D composites showed a better fit with the Langmuir model with maximum adsorption capacities between 12.3 and 38.4 mg/g and are similar to those for C and A composites, while kinetics run followed a pseudo-second-order model. Composites containing either benzyl or pyridine functional groups showed higher adsorption of DCF, implying that surfactant structure has a significant impact on drug adsorption. Drug adsorption onto O, D, C and A composites was also confirmed by FTIR–ATR spectroscopy and zeta potential measurements. |
| first_indexed | 2024-03-09T13:15:15Z |
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| id | doaj.art-29bd6587e99c497ea67652918d1e6190 |
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| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T13:15:15Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
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| series | Catalysts |
| spelling | doaj.art-29bd6587e99c497ea67652918d1e61902023-11-30T21:36:45ZengMDPI AGCatalysts2073-43442022-12-011317110.3390/catal13010071Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac SodiumDanijela Smiljanić0Aleksandra Daković1Milena Obradović2Milica Ožegović3Marija Marković4George E. Rottinghaus5Bruno de Gennaro6Institute for Technology of Nuclear and Other Mineral Raw Materials, Franche D’ Epere 86, 11000 Belgrade, SerbiaInstitute for Technology of Nuclear and Other Mineral Raw Materials, Franche D’ Epere 86, 11000 Belgrade, SerbiaInstitute for Technology of Nuclear and Other Mineral Raw Materials, Franche D’ Epere 86, 11000 Belgrade, SerbiaInstitute for Technology of Nuclear and Other Mineral Raw Materials, Franche D’ Epere 86, 11000 Belgrade, SerbiaInstitute for Technology of Nuclear and Other Mineral Raw Materials, Franche D’ Epere 86, 11000 Belgrade, SerbiaVeterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USAACLabs—Applied Chemistry Labs, Department of Chemical, Materials Engineering and Industrial Production, University of Naples Federico II, P.le V. Tecchio 80, 80125 Naples, ItalyModified phillipsite samples were prepared with two different amounts (monolayer and bilayer coverage) of surfactants octadecyldimethylbenzylammonium chloride (O) and dodecylamine (D). Composites were characterized by Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR–ATR), thermal analysis and determination of zeta potential, and subsequently tested for removal of diclofenac sodium (DCF). Drug adsorption experiments were performed under different initial DCF concentrations and different contact times. In order to investigate the influence of the chemical structure of surfactants used for modification of phillipsite on the preparation and properties of composites and DCF adsorption, experimental data were compared with previously published results on DCF adsorption by composites containing phillipsite and the same amounts of surfactants cetylpyridinium chloride (C) and Arquad<sup>®</sup>2HT-75 (A). DCF adsorption isotherms for O and D composites showed a better fit with the Langmuir model with maximum adsorption capacities between 12.3 and 38.4 mg/g and are similar to those for C and A composites, while kinetics run followed a pseudo-second-order model. Composites containing either benzyl or pyridine functional groups showed higher adsorption of DCF, implying that surfactant structure has a significant impact on drug adsorption. Drug adsorption onto O, D, C and A composites was also confirmed by FTIR–ATR spectroscopy and zeta potential measurements.https://www.mdpi.com/2073-4344/13/1/71zeolite-rich tuffphillipsitesurfactant modificationdrug adsorptiondiclofenac |
| spellingShingle | Danijela Smiljanić Aleksandra Daković Milena Obradović Milica Ožegović Marija Marković George E. Rottinghaus Bruno de Gennaro Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium Catalysts zeolite-rich tuff phillipsite surfactant modification drug adsorption diclofenac |
| title | Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium |
| title_full | Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium |
| title_fullStr | Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium |
| title_full_unstemmed | Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium |
| title_short | Influence of the Type and the Amount of Surfactant in Phillipsite on Adsorption of Diclofenac Sodium |
| title_sort | influence of the type and the amount of surfactant in phillipsite on adsorption of diclofenac sodium |
| topic | zeolite-rich tuff phillipsite surfactant modification drug adsorption diclofenac |
| url | https://www.mdpi.com/2073-4344/13/1/71 |
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