Visible-light-responsive Al2O3 powder: Photocatalytic study
Нема приказа
Аутори
Zarubica, Aleksandra R.Ljupković, Radomir
Papan, Jelena
Vukoje, Ivana D.
Porobić, Slavica
Ahrenkiel, Scott Phillip
Nedeljković, Jovan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensit...ies. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.
Кључне речи:
Interfaces / Nanocomposites / Optical properties / Al2O3Извор:
Optical Materials, 2020, 106, 110013-Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
DOI: 10.1016/j.optmat.2020.110013
ISSN: 0925-3467
WoS: 000542134200040
Scopus: 2-s2.0-85084936094
Институција/група
VinčaTY - JOUR AU - Zarubica, Aleksandra R. AU - Ljupković, Radomir AU - Papan, Jelena AU - Vukoje, Ivana D. AU - Porobić, Slavica AU - Ahrenkiel, Scott Phillip AU - Nedeljković, Jovan PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9003 AB - A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity. T2 - Optical Materials T1 - Visible-light-responsive Al2O3 powder: Photocatalytic study VL - 106 SP - 110013 DO - 10.1016/j.optmat.2020.110013 ER -
@article{ author = "Zarubica, Aleksandra R. and Ljupković, Radomir and Papan, Jelena and Vukoje, Ivana D. and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan", year = "2020", abstract = "A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.", journal = "Optical Materials", title = "Visible-light-responsive Al2O3 powder: Photocatalytic study", volume = "106", pages = "110013", doi = "10.1016/j.optmat.2020.110013" }
Zarubica, A. R., Ljupković, R., Papan, J., Vukoje, I. D., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Visible-light-responsive Al2O3 powder: Photocatalytic study. in Optical Materials, 106, 110013. https://doi.org/10.1016/j.optmat.2020.110013
Zarubica AR, Ljupković R, Papan J, Vukoje ID, Porobić S, Ahrenkiel SP, Nedeljković J. Visible-light-responsive Al2O3 powder: Photocatalytic study. in Optical Materials. 2020;106:110013. doi:10.1016/j.optmat.2020.110013 .
Zarubica, Aleksandra R., Ljupković, Radomir, Papan, Jelena, Vukoje, Ivana D., Porobić, Slavica, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Visible-light-responsive Al2O3 powder: Photocatalytic study" in Optical Materials, 106 (2020):110013, https://doi.org/10.1016/j.optmat.2020.110013 . .