Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione
Samo za registrovane korisnike
2018
Autori
Đorđević, AleksandarŠojić Merkulov, Daniela
Lazarević, Marina
Borišev, Ivana
Medić, Igor
Pavlović, Vladimir B.
Miljević, Bojan
Abramović, Biljana
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The surface modification of commercial TiO2 Hombikat (TiO2) using nanoparticles of fullerene C60 with tetrahydrofuran (THF-nC60), as well as fullerenol C60(OH)24 nanoparticles (FNP) was investigated in this study. Characterization of THF-nC60, FNP, TiO2, TiO2/THF-nC60, and TiO2/FNP was studied by using DES, ELS, TEM, SEM, DRS and BET measurements and their photoactivity has been examined on the mesotrione degradation under simulated sunlight. It was found that FNP in self-assembled nanocomposite TiO2/FNP increased negatively charge, as well as catalytic surface of TiO2. In addition, TiO2/FNP exhibits a shift of band gap energy to lower values compared to TiO2 and TiO2/THF-nC60. BET surface area has not showed significant differences among catalysts. Furthermore, it was found that the highest photoactivity was obtained for TiO2/FNP system. Besides, influence of different concentrations of electron acceptors (H2O2 and KBrO3), as well as scavengers on the kinetics of mesotrione removal in... aqueous solution with/without TiO2 and FNP under simulated sunlight was investigated. Namely, addition of mentioned electron acceptors has resulted in higher mesotrione degradation efficiency compared to O2 alone. Besides, in the first period substrate degradation probably takes place via hydroxyl radicals and after 60 min of irradiation the reaction mechanism proceeds mainly via holes. The most efficient system for mesotrione degradation and mineralization were TiO2/7 mM KBrO3 and TiO2/7 mM KBrO3/40 μl FNP, respectively. © 2017 Elsevier Ltd
Ključne reči:
characterization / electron acceptors / photocatalysis / scavengers / TiO2/FNP / TiO2/THF-nC60Izvor:
Chemosphere, 2018, 196, 145-152Izdavač:
- Elsevier
Finansiranje / projekti:
- Razvoj i primena multifunkcionalnih materijala na bazi domaćih sirovina modernizacijom tradicionalnih tehnologija (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45008)
- Razvoj metoda praćenja i uklanjanja biološki aktivnih supstanci u cilju unapređenja kvaliteta životne sredine (RS-MESTD-Basic Research (BR or ON)-172042)
- Funkcionalni, funkcionalizovani i usavršeni nano materijali (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
Napomena:
- Supporting information: https://hdl.handle.net/21.15107/rcub_dais_3787
Povezane informacije:
- Povezani sadržaj
https://hdl.handle.net/21.15107/rcub_dais_3787
DOI: 10.1016/j.chemosphere.2017.12.160
ISSN: 0045-6535
WoS: 000425075500018
Scopus: 2-s2.0-85039772328
Institucija/grupa
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Đorđević, Aleksandar AU - Šojić Merkulov, Daniela AU - Lazarević, Marina AU - Borišev, Ivana AU - Medić, Igor AU - Pavlović, Vladimir B. AU - Miljević, Bojan AU - Abramović, Biljana PY - 2018 UR - https://dais.sanu.ac.rs/123456789/3743 AB - The surface modification of commercial TiO2 Hombikat (TiO2) using nanoparticles of fullerene C60 with tetrahydrofuran (THF-nC60), as well as fullerenol C60(OH)24 nanoparticles (FNP) was investigated in this study. Characterization of THF-nC60, FNP, TiO2, TiO2/THF-nC60, and TiO2/FNP was studied by using DES, ELS, TEM, SEM, DRS and BET measurements and their photoactivity has been examined on the mesotrione degradation under simulated sunlight. It was found that FNP in self-assembled nanocomposite TiO2/FNP increased negatively charge, as well as catalytic surface of TiO2. In addition, TiO2/FNP exhibits a shift of band gap energy to lower values compared to TiO2 and TiO2/THF-nC60. BET surface area has not showed significant differences among catalysts. Furthermore, it was found that the highest photoactivity was obtained for TiO2/FNP system. Besides, influence of different concentrations of electron acceptors (H2O2 and KBrO3), as well as scavengers on the kinetics of mesotrione removal in aqueous solution with/without TiO2 and FNP under simulated sunlight was investigated. Namely, addition of mentioned electron acceptors has resulted in higher mesotrione degradation efficiency compared to O2 alone. Besides, in the first period substrate degradation probably takes place via hydroxyl radicals and after 60 min of irradiation the reaction mechanism proceeds mainly via holes. The most efficient system for mesotrione degradation and mineralization were TiO2/7 mM KBrO3 and TiO2/7 mM KBrO3/40 μl FNP, respectively. © 2017 Elsevier Ltd PB - Elsevier T2 - Chemosphere T1 - Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione SP - 145 EP - 152 VL - 196 DO - 10.1016/j.chemosphere.2017.12.160 UR - https://hdl.handle.net/21.15107/rcub_dais_3743 ER -
@article{ author = "Đorđević, Aleksandar and Šojić Merkulov, Daniela and Lazarević, Marina and Borišev, Ivana and Medić, Igor and Pavlović, Vladimir B. and Miljević, Bojan and Abramović, Biljana", year = "2018", abstract = "The surface modification of commercial TiO2 Hombikat (TiO2) using nanoparticles of fullerene C60 with tetrahydrofuran (THF-nC60), as well as fullerenol C60(OH)24 nanoparticles (FNP) was investigated in this study. Characterization of THF-nC60, FNP, TiO2, TiO2/THF-nC60, and TiO2/FNP was studied by using DES, ELS, TEM, SEM, DRS and BET measurements and their photoactivity has been examined on the mesotrione degradation under simulated sunlight. It was found that FNP in self-assembled nanocomposite TiO2/FNP increased negatively charge, as well as catalytic surface of TiO2. In addition, TiO2/FNP exhibits a shift of band gap energy to lower values compared to TiO2 and TiO2/THF-nC60. BET surface area has not showed significant differences among catalysts. Furthermore, it was found that the highest photoactivity was obtained for TiO2/FNP system. Besides, influence of different concentrations of electron acceptors (H2O2 and KBrO3), as well as scavengers on the kinetics of mesotrione removal in aqueous solution with/without TiO2 and FNP under simulated sunlight was investigated. Namely, addition of mentioned electron acceptors has resulted in higher mesotrione degradation efficiency compared to O2 alone. Besides, in the first period substrate degradation probably takes place via hydroxyl radicals and after 60 min of irradiation the reaction mechanism proceeds mainly via holes. The most efficient system for mesotrione degradation and mineralization were TiO2/7 mM KBrO3 and TiO2/7 mM KBrO3/40 μl FNP, respectively. © 2017 Elsevier Ltd", publisher = "Elsevier", journal = "Chemosphere", title = "Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione", pages = "145-152", volume = "196", doi = "10.1016/j.chemosphere.2017.12.160", url = "https://hdl.handle.net/21.15107/rcub_dais_3743" }
Đorđević, A., Šojić Merkulov, D., Lazarević, M., Borišev, I., Medić, I., Pavlović, V. B., Miljević, B.,& Abramović, B.. (2018). Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione. in Chemosphere Elsevier., 196, 145-152. https://doi.org/10.1016/j.chemosphere.2017.12.160 https://hdl.handle.net/21.15107/rcub_dais_3743
Đorđević A, Šojić Merkulov D, Lazarević M, Borišev I, Medić I, Pavlović VB, Miljević B, Abramović B. Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione. in Chemosphere. 2018;196:145-152. doi:10.1016/j.chemosphere.2017.12.160 https://hdl.handle.net/21.15107/rcub_dais_3743 .
Đorđević, Aleksandar, Šojić Merkulov, Daniela, Lazarević, Marina, Borišev, Ivana, Medić, Igor, Pavlović, Vladimir B., Miljević, Bojan, Abramović, Biljana, "Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione" in Chemosphere, 196 (2018):145-152, https://doi.org/10.1016/j.chemosphere.2017.12.160 ., https://hdl.handle.net/21.15107/rcub_dais_3743 .