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
Djordjević, AleksandarSojić-Merkulov, Daniela
Lazarević, Marina
Borisev, Ivana
Medić, Igor
Pavlović, Vladimir
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 C-60 with tetrahydrofuran (THF-nC(60)), as well as fullerenol C-60(OH)(24) nanoparticles (FNP) was investigated in this study. Characterization of THF-nC(60), FNP, TiO2, TiO2/THF-nC(60), 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-nC(60). 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 mesotrion...e 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 O-2 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 mu l FNP, respectively.
Ključne reči:
TiO2/THF-nC(60) / TiO2/FNP / Characterization / Photocatalysis / Electron acceptors / ScavengersIzvor:
Chemosphere, 2018, 196, 145-152Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Funkcionalni, funkcionalizovani i usavršeni nano materijali (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- Razvoj metoda praćenja i uklanjanja biološki aktivnih supstanci u cilju unapređenja kvaliteta životne sredine (RS-MESTD-Basic Research (BR or ON)-172042)
- Razvoj i primena multifunkcionalnih materijala na bazi domaćih sirovina modernizacijom tradicionalnih tehnologija (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45008)
DOI: 10.1016/j.chemosphere.2017.12.160
ISSN: 0045-6535
PubMed: 29294428
WoS: 000425075500018
Scopus: 2-s2.0-85039772328
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Djordjević, Aleksandar AU - Sojić-Merkulov, Daniela AU - Lazarević, Marina AU - Borisev, Ivana AU - Medić, Igor AU - Pavlović, Vladimir AU - Miljević, Bojan AU - Abramović, Biljana PY - 2018 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4752 AB - The surface modification of commercial TiO2 Hombikat (TiO2) using nanoparticles of fullerene C-60 with tetrahydrofuran (THF-nC(60)), as well as fullerenol C-60(OH)(24) nanoparticles (FNP) was investigated in this study. Characterization of THF-nC(60), FNP, TiO2, TiO2/THF-nC(60), 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-nC(60). 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 O-2 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 mu l FNP, respectively. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Chemosphere T1 - Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione EP - 152 SP - 145 VL - 196 DO - 10.1016/j.chemosphere.2017.12.160 ER -
@article{ author = "Djordjević, Aleksandar and Sojić-Merkulov, Daniela and Lazarević, Marina and Borisev, Ivana and Medić, Igor and Pavlović, Vladimir and Miljević, Bojan and Abramović, Biljana", year = "2018", abstract = "The surface modification of commercial TiO2 Hombikat (TiO2) using nanoparticles of fullerene C-60 with tetrahydrofuran (THF-nC(60)), as well as fullerenol C-60(OH)(24) nanoparticles (FNP) was investigated in this study. Characterization of THF-nC(60), FNP, TiO2, TiO2/THF-nC(60), 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-nC(60). 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 O-2 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 mu l FNP, respectively.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Chemosphere", title = "Enhancement of nano titanium dioxide coatings by fullerene and polyhydroxy fullerene in the photocatalytic degradation of the herbicide mesotrione", pages = "152-145", volume = "196", doi = "10.1016/j.chemosphere.2017.12.160" }
Djordjević, A., Sojić-Merkulov, D., Lazarević, M., Borisev, I., Medić, I., Pavlović, V., 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 Pergamon-Elsevier Science Ltd, Oxford., 196, 145-152. https://doi.org/10.1016/j.chemosphere.2017.12.160
Djordjević A, Sojić-Merkulov D, Lazarević M, Borisev I, Medić I, Pavlović V, 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 .
Djordjević, Aleksandar, Sojić-Merkulov, Daniela, Lazarević, Marina, Borisev, Ivana, Medić, Igor, Pavlović, Vladimir, 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 . .