From Adsorbent to Photocatalyst: The Sensitization Effect of SnO<sub<2</sub< Surface towards Dye Photodecomposition
Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its...
Ausführliche Beschreibung
Autor*in: |
Kinga Michalec [verfasserIn] Anna Kusior [verfasserIn] |
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E-Artikel |
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Englisch |
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2021 |
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In: Molecules - MDPI AG, 2003, 26(2021), 23, p 7123 |
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Übergeordnetes Werk: |
volume:26 ; year:2021 ; number:23, p 7123 |
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DOI / URN: |
10.3390/molecules26237123 |
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Katalog-ID: |
DOAJ015911861 |
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10.3390/molecules26237123 doi (DE-627)DOAJ015911861 (DE-599)DOAJ627c483cfd8940d1881eeacd75fad35c DE-627 ger DE-627 rakwb eng QD241-441 Kinga Michalec verfasserin aut From Adsorbent to Photocatalyst: The Sensitization Effect of SnO<sub<2</sub< Surface towards Dye Photodecomposition 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its affinity towards various dyes and reusability. In this work, we studied the adsorptive/photocatalytic properties of hollow-spherical raspberry-like SnO<sub<2</sub< and its SnO<sub<2</sub</SnS<sub<2</sub< heterostructures that were obtained via a chemical conversion method using three different concentrations of a sulfide precursor (thioacetamide). The adsorptive/photocatalytic properties of the samples towards cationic rhodamine B (RhB) and anionic indigo carmine (IC) were analyzed using uncommon wall zeta potential measurements, hydrodynamic diameter studies, and adsorption/photodecomposition tests. Moreover, after conducting cyclic experiments, we investigated the (micro)structural changes of the reused photocatalysts by scanning electron microscopy and Fourier-transform infrared spectroscopy. The obtained results revealed that the sensitization of SnO<sub<2</sub< resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS<sub<2</sub< content was unstable due to its (micro)structure. This work demonstrates that dye adsorption/desorption processes may overlap the results of cyclic photodecomposition kinetics. heterostructure SnO<sub<2</sub< SnS<sub<2</sub< photocatalysis adsorption sensitization Organic chemistry Anna Kusior verfasserin aut In Molecules MDPI AG, 2003 26(2021), 23, p 7123 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:26 year:2021 number:23, p 7123 https://doi.org/10.3390/molecules26237123 kostenfrei https://doaj.org/article/627c483cfd8940d1881eeacd75fad35c kostenfrei https://www.mdpi.com/1420-3049/26/23/7123 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2021 23, p 7123 |
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10.3390/molecules26237123 doi (DE-627)DOAJ015911861 (DE-599)DOAJ627c483cfd8940d1881eeacd75fad35c DE-627 ger DE-627 rakwb eng QD241-441 Kinga Michalec verfasserin aut From Adsorbent to Photocatalyst: The Sensitization Effect of SnO<sub<2</sub< Surface towards Dye Photodecomposition 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its affinity towards various dyes and reusability. In this work, we studied the adsorptive/photocatalytic properties of hollow-spherical raspberry-like SnO<sub<2</sub< and its SnO<sub<2</sub</SnS<sub<2</sub< heterostructures that were obtained via a chemical conversion method using three different concentrations of a sulfide precursor (thioacetamide). The adsorptive/photocatalytic properties of the samples towards cationic rhodamine B (RhB) and anionic indigo carmine (IC) were analyzed using uncommon wall zeta potential measurements, hydrodynamic diameter studies, and adsorption/photodecomposition tests. Moreover, after conducting cyclic experiments, we investigated the (micro)structural changes of the reused photocatalysts by scanning electron microscopy and Fourier-transform infrared spectroscopy. The obtained results revealed that the sensitization of SnO<sub<2</sub< resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS<sub<2</sub< content was unstable due to its (micro)structure. This work demonstrates that dye adsorption/desorption processes may overlap the results of cyclic photodecomposition kinetics. heterostructure SnO<sub<2</sub< SnS<sub<2</sub< photocatalysis adsorption sensitization Organic chemistry Anna Kusior verfasserin aut In Molecules MDPI AG, 2003 26(2021), 23, p 7123 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:26 year:2021 number:23, p 7123 https://doi.org/10.3390/molecules26237123 kostenfrei https://doaj.org/article/627c483cfd8940d1881eeacd75fad35c kostenfrei https://www.mdpi.com/1420-3049/26/23/7123 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 26 2021 23, p 7123 |
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QD241-441 From Adsorbent to Photocatalyst: The Sensitization Effect of SnO<sub<2</sub< Surface towards Dye Photodecomposition heterostructure SnO<sub<2</sub< SnS<sub<2</sub< photocatalysis adsorption sensitization |
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From Adsorbent to Photocatalyst: The Sensitization Effect of SnO<sub<2</sub< Surface towards Dye Photodecomposition |
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Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its affinity towards various dyes and reusability. In this work, we studied the adsorptive/photocatalytic properties of hollow-spherical raspberry-like SnO<sub<2</sub< and its SnO<sub<2</sub</SnS<sub<2</sub< heterostructures that were obtained via a chemical conversion method using three different concentrations of a sulfide precursor (thioacetamide). The adsorptive/photocatalytic properties of the samples towards cationic rhodamine B (RhB) and anionic indigo carmine (IC) were analyzed using uncommon wall zeta potential measurements, hydrodynamic diameter studies, and adsorption/photodecomposition tests. Moreover, after conducting cyclic experiments, we investigated the (micro)structural changes of the reused photocatalysts by scanning electron microscopy and Fourier-transform infrared spectroscopy. The obtained results revealed that the sensitization of SnO<sub<2</sub< resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS<sub<2</sub< content was unstable due to its (micro)structure. This work demonstrates that dye adsorption/desorption processes may overlap the results of cyclic photodecomposition kinetics. |
abstractGer |
Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its affinity towards various dyes and reusability. In this work, we studied the adsorptive/photocatalytic properties of hollow-spherical raspberry-like SnO<sub<2</sub< and its SnO<sub<2</sub</SnS<sub<2</sub< heterostructures that were obtained via a chemical conversion method using three different concentrations of a sulfide precursor (thioacetamide). The adsorptive/photocatalytic properties of the samples towards cationic rhodamine B (RhB) and anionic indigo carmine (IC) were analyzed using uncommon wall zeta potential measurements, hydrodynamic diameter studies, and adsorption/photodecomposition tests. Moreover, after conducting cyclic experiments, we investigated the (micro)structural changes of the reused photocatalysts by scanning electron microscopy and Fourier-transform infrared spectroscopy. The obtained results revealed that the sensitization of SnO<sub<2</sub< resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS<sub<2</sub< content was unstable due to its (micro)structure. This work demonstrates that dye adsorption/desorption processes may overlap the results of cyclic photodecomposition kinetics. |
abstract_unstemmed |
Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its affinity towards various dyes and reusability. In this work, we studied the adsorptive/photocatalytic properties of hollow-spherical raspberry-like SnO<sub<2</sub< and its SnO<sub<2</sub</SnS<sub<2</sub< heterostructures that were obtained via a chemical conversion method using three different concentrations of a sulfide precursor (thioacetamide). The adsorptive/photocatalytic properties of the samples towards cationic rhodamine B (RhB) and anionic indigo carmine (IC) were analyzed using uncommon wall zeta potential measurements, hydrodynamic diameter studies, and adsorption/photodecomposition tests. Moreover, after conducting cyclic experiments, we investigated the (micro)structural changes of the reused photocatalysts by scanning electron microscopy and Fourier-transform infrared spectroscopy. The obtained results revealed that the sensitization of SnO<sub<2</sub< resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS<sub<2</sub< content was unstable due to its (micro)structure. This work demonstrates that dye adsorption/desorption processes may overlap the results of cyclic photodecomposition kinetics. |
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From Adsorbent to Photocatalyst: The Sensitization Effect of SnO<sub<2</sub< Surface towards Dye Photodecomposition |
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The obtained results revealed that the sensitization of SnO<sub<2</sub< resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS<sub<2</sub< content was unstable due to its (micro)structure. 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