Removal of sulfamethoxazole sulfonamide antibiotic from water by high silica zeolites: A study of the involved host–guest interactions by a combined structural, spectroscopic, and computational approach

Blasioli, Sonia; Martucci, Annalisa; Paul, Geo; Gigli, Lara; Cossi, Maurizio; Johnston, Cliff T.; Marchese, Leonardo; Braschi, Ilaria

doi:10.1016/j.jcis.2013.12.039

Cited by 73 publications

(84 citation statements)

References 31 publications

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“…Topological symmetry of the unloaded material is cubic Fd-3m, but it has been highlighted that the embedding of organic compounds can decrease the symmetry to Fd-3 [10][11][12][13]43]. A careful examination of powder diffraction patterns after chlorobenzene adsorption highlights that Y-CB peak positions are quite similar to those of the as-synthetized material in all the 2θ range investigated.…”

Section: Y-cbmentioning

confidence: 97%

“…Additionally, based on the W sites refined distance these sites interact with both each other and chlorine atoms forming oligomers (W2-W2 = 2.93 Å, W3-Cl = 3.21 Å and W1-W2 = 2.93 and 2.74 Å, respectively) that strongly interact with the framework oxygen atoms via chlorine (Figure 4a). According to the recent literature [5][6][7][8][10][11][12][13]29,44], the strong interactions among organic molecules-H2O short chain-frameworks play a relevant role in stabilizing the guest structures within the zeolite porosity.…”

Section: The T-o-t Bond Angles Adopt a Wide Range Of Values From 12mentioning

confidence: 99%

“…Actually, the physical method based on adsorption processes is a recuperative method exploited for in situ water treatments which combines high flexibility of the system, efficiency even at low concentration levels, low energy, cheap operating costs, and possible waste reductions [3]. Different adsorbent materials can be employed, and their efficiency depends on the host-guest interactions between sorbent and sorbate [4][5][6][7][8][9][10][11][12][13]. In general, carbonaceous adsorbents are low cost materials, widely employed in remediation technology.…”

Section: Introductionmentioning

confidence: 99%

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Insights into Adsorption of Chlorobenzene in High Silica MFI and FAU Zeolites Gained from Chromatographic and Diffractometric Techniques

et al. 2018

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Abstract:In this work, the capability of two commercial high silica zeolites (HSZs), namely ZSM-5 and Y, for the removal of chlorobenzene (CB) from water was investigated by combining chromatographic and diffractometric techniques. The adsorption isotherms and kinetics of CB on ZSM-5 and Y zeolites were determined from batch tests. The adsorption kinetics were very fast; the time to reach equilibrium was less than 10 min. The equilibrium data of CB on the two HSZs showed dissimilarities that are particularly evident in the adsorption data concerning the low concentration range, where Y zeolite is characterized by low adsorption. On the contrary, at higher solution concentrations the adsorption capacity of Y is higher than that of ZSM-5. The crystalline structures of Y and ZSM-5 saturated with CB were investigated by X-ray diffraction (XRD) techniques. Rietveld refinement analyses of XRD data allowed for quantitative probing of the structural modifications of both zeolites after CB adsorption and provided insight into the preferred zeolite adsorption sites in both microporous materials. The refined framework-extraframework bond distances confirm that interactions between the selected organic contaminant and hydrophobic zeolites are mediated via co-adsorbed H 2 O. The occurrence of H 2 O-CB-framework oxygen oligomers explains variations in both the unit cell parameters and the shape of the channels, clearly confirming that water plays a very relevant role in controlling the diffusion and adsorption processes in hydrophobic zeolites.

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Section: Y-cbmentioning

confidence: 97%

Section: The T-o-t Bond Angles Adopt a Wide Range Of Values From 12mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Insights into Adsorption of Chlorobenzene in High Silica MFI and FAU Zeolites Gained from Chromatographic and Diffractometric Techniques

et al. 2018

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“…39,40 In its Si-rich form, mordenite has been used for the adsorption of pollutants from aqueous media. [41][42][43][44][45][46] Otherwise, it is worth noting that mordenite has never been exploited up to now to incorporate organic molecules under pressure.…”

Section: Introductionmentioning

confidence: 99%

Pressure-induced penetration of guest molecules in high-silica zeolites: the case of mordenite

Arletti

Leardini

Vezzalini

et al. 2015

Phys. Chem. Chem. Phys.

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A synthetic high-silica mordenite (HS-MOR) has been compressed in both non-penetrating (silicone oil, s.o.) and penetrating [methanol : ethanol : water (16 : 3 : 1) (m.e.w.), water : ethanol (3 : 1) (w.e.), and ethylene glycol (e.gl.)] pressure transmitting media (PTM). In situ high-pressure (HP) synchrotron X-ray powder diffraction (XRPD) experiments allowed the unit cell parameters to be followed up to 1.6, 1.8, 8.4, and 6.7 GPa in s.o., w.e., m.e.w., and e.gl., respectively. Moreover, e.gl. was also used as a PTM in in situ HP Raman and ex situ IR experiments. The structural refinement of HS-MOR compressed in e.gl.at 0.1 GPa -the lowest investigated pressure -revealed the presence of 3.5 ethylene glycol molecules per unit cell. The infrared spectrum of the recovered sample, after compression to 1 GPa, is consistent with the insertion of ethylene glycol molecules in the pores. XRPD and Raman spectroscopy experiments performed under pressure indicated the insertion of a small number of guest molecules. Ethylene glycol is partially retained inside mordenite upon pressure release. A symmetry lowering was observed in s.o. above 0.8 GPa, while above 1.6 GPa the patterns indicated a rapid loss of long range order. From ambient pressure (P amb ) to 1.6 GPa, a high cell volume contraction (DV = À9.5%) was determined. The patterns collected with penetrating PTM suggested the penetration of guest molecules into the porous host matrix, starting from a very low P regime. The entrapment of PTM molecules inside micropores contributes to the stiffening of the structure and, as a consequence, to the decrease of the compressibility with respect to that measured in s.o. From the structural point of view, HS-MOR reacts to compression and to the penetration of different guest species with appropriate framework deformations. Interestingly, ethylene glycol is partially retained inside mordenite upon pressure release, which is of importance for potential application of this composite material.

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“…Additionally, the first four technologies are also challenged by easily influenced by the surrounding environment, generating secondary pollution, and needing complex equipment. Adsorption removal investigations featured with cost-effective, flexibility, simple design, easy operation and insensitivity to toxic pollutants, have been conducted on carbon materials [11,12], metal oxide [13], polymers [14], zeolites [15,16]. However, all of the above mentioned adsorbents are limited by the pore size exclusion as most of antibiotics molecules are in the range of nanometers, or lack of functionalities which is important for the adsorption of antibiotics possessing complex molecular formula and different functional groups.…”

Section: Introductionmentioning

confidence: 99%

Elucidating the electrostatic interaction of sulfonic acid functionalized SBA-15 for ciprofloxain adsorption

Gao

Zhang

et al. 2015

Applied Surface Science

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Removal of sulfamethoxazole sulfonamide antibiotic from water by high silica zeolites: A study of the involved host–guest interactions by a combined structural, spectroscopic, and computational approach

Cited by 73 publications

References 31 publications

Insights into Adsorption of Chlorobenzene in High Silica MFI and FAU Zeolites Gained from Chromatographic and Diffractometric Techniques

Insights into Adsorption of Chlorobenzene in High Silica MFI and FAU Zeolites Gained from Chromatographic and Diffractometric Techniques

Pressure-induced penetration of guest molecules in high-silica zeolites: the case of mordenite

Elucidating the electrostatic interaction of sulfonic acid functionalized SBA-15 for ciprofloxain adsorption

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