Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron
Само за регистроване кориснике
2017
Аутори
Dugandžić, Ana M.Tomašević, Anđelka
Radišić, Marina
Šekuljica, Nataša
Mijin, Dušan
Petrović, Slobodan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In the present study, the photocatalytic degradation of nicosulfuron, using TiO2 as a catalyst under UV light (315-400 nm), was studied. The optimization of the nicosulfuron photodegradation was performed. It was found that the optimal concentration of the catalyst was 1 g L-1 at concentration of nicosulfuron solution of 20 mg L-1 while the highest reaction rate was obtained using 2 g L-1. The degradation rate was the highest at pH .= 5.0. Effects of anions (Cl-, SO42- NO3- and F-) and cations (Na+, Ca2+, Al3+) were investigated. In addition, the influence of isopropanol, acetone, and hydrogen peroxide was studied. It was shown that the photocatalytic degradation is mainly due to the reaction of nicosulfuron with (OH)-O-center dot in solution. Also, liquid chromatography coupled with mass spectrometry (HPLC-MS) was used to identify intermediates during the photocatalytic degradation of nicosulfuron. the mineralization was monitored with ion chromatography (IC) and total organic carbon ...(TOC) analysis. Although 100% HPLC removal of nicosulfuron was achieved, only 69% TOC removal after 90 min was recorded. The results of ion chromatography showed that the mineralization resulted in ammonium and nitrate ions during the process. The phytotoxicity experiments using mung bean seeds showed a reduction in phytotoxicity.
Кључне речи:
Titanium dioxide / Optimization / Inorganic ions / Acetone / Isopropanol / Hydrogen peroxideИзвор:
Journal of Photochemistry and Photobiology A-Chemistry, 2017, 336, 146-155Издавач:
- Elsevier Science Sa, Lausanne
Финансирање / пројекти:
- Проучавање синтезе, структуре и активности органских једињења природног и синтетског порекла (RS-172013)
- Развој и примена метода и материјала за мониторинг нових загађујућих и токсичних органских материја и тешких метала (RS-172007)
- Развој интегрисаних система управљања штетним организмима у биљној производњи са циљем превазилажења резистентности и унапређења квалитета и безбедности хране (RS-46008)
DOI: 10.1016/j.jphotochem.2016.12.031
ISSN: 1010-6030
WoS: 000394074500018
Scopus: 2-s2.0-85008684241
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Dugandžić, Ana M. AU - Tomašević, Anđelka AU - Radišić, Marina AU - Šekuljica, Nataša AU - Mijin, Dušan AU - Petrović, Slobodan PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3701 AB - In the present study, the photocatalytic degradation of nicosulfuron, using TiO2 as a catalyst under UV light (315-400 nm), was studied. The optimization of the nicosulfuron photodegradation was performed. It was found that the optimal concentration of the catalyst was 1 g L-1 at concentration of nicosulfuron solution of 20 mg L-1 while the highest reaction rate was obtained using 2 g L-1. The degradation rate was the highest at pH .= 5.0. Effects of anions (Cl-, SO42- NO3- and F-) and cations (Na+, Ca2+, Al3+) were investigated. In addition, the influence of isopropanol, acetone, and hydrogen peroxide was studied. It was shown that the photocatalytic degradation is mainly due to the reaction of nicosulfuron with (OH)-O-center dot in solution. Also, liquid chromatography coupled with mass spectrometry (HPLC-MS) was used to identify intermediates during the photocatalytic degradation of nicosulfuron. the mineralization was monitored with ion chromatography (IC) and total organic carbon (TOC) analysis. Although 100% HPLC removal of nicosulfuron was achieved, only 69% TOC removal after 90 min was recorded. The results of ion chromatography showed that the mineralization resulted in ammonium and nitrate ions during the process. The phytotoxicity experiments using mung bean seeds showed a reduction in phytotoxicity. PB - Elsevier Science Sa, Lausanne T2 - Journal of Photochemistry and Photobiology A-Chemistry T1 - Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron EP - 155 SP - 146 VL - 336 DO - 10.1016/j.jphotochem.2016.12.031 ER -
@article{ author = "Dugandžić, Ana M. and Tomašević, Anđelka and Radišić, Marina and Šekuljica, Nataša and Mijin, Dušan and Petrović, Slobodan", year = "2017", abstract = "In the present study, the photocatalytic degradation of nicosulfuron, using TiO2 as a catalyst under UV light (315-400 nm), was studied. The optimization of the nicosulfuron photodegradation was performed. It was found that the optimal concentration of the catalyst was 1 g L-1 at concentration of nicosulfuron solution of 20 mg L-1 while the highest reaction rate was obtained using 2 g L-1. The degradation rate was the highest at pH .= 5.0. Effects of anions (Cl-, SO42- NO3- and F-) and cations (Na+, Ca2+, Al3+) were investigated. In addition, the influence of isopropanol, acetone, and hydrogen peroxide was studied. It was shown that the photocatalytic degradation is mainly due to the reaction of nicosulfuron with (OH)-O-center dot in solution. Also, liquid chromatography coupled with mass spectrometry (HPLC-MS) was used to identify intermediates during the photocatalytic degradation of nicosulfuron. the mineralization was monitored with ion chromatography (IC) and total organic carbon (TOC) analysis. Although 100% HPLC removal of nicosulfuron was achieved, only 69% TOC removal after 90 min was recorded. The results of ion chromatography showed that the mineralization resulted in ammonium and nitrate ions during the process. The phytotoxicity experiments using mung bean seeds showed a reduction in phytotoxicity.", publisher = "Elsevier Science Sa, Lausanne", journal = "Journal of Photochemistry and Photobiology A-Chemistry", title = "Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron", pages = "155-146", volume = "336", doi = "10.1016/j.jphotochem.2016.12.031" }
Dugandžić, A. M., Tomašević, A., Radišić, M., Šekuljica, N., Mijin, D.,& Petrović, S.. (2017). Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron. in Journal of Photochemistry and Photobiology A-Chemistry Elsevier Science Sa, Lausanne., 336, 146-155. https://doi.org/10.1016/j.jphotochem.2016.12.031
Dugandžić AM, Tomašević A, Radišić M, Šekuljica N, Mijin D, Petrović S. Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron. in Journal of Photochemistry and Photobiology A-Chemistry. 2017;336:146-155. doi:10.1016/j.jphotochem.2016.12.031 .
Dugandžić, Ana M., Tomašević, Anđelka, Radišić, Marina, Šekuljica, Nataša, Mijin, Dušan, Petrović, Slobodan, "Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron" in Journal of Photochemistry and Photobiology A-Chemistry, 336 (2017):146-155, https://doi.org/10.1016/j.jphotochem.2016.12.031 . .