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Photocatalytic Degradation of Carbofuran in Water Using Laser-Treated TiO 2 : Parameters Influence Study, Cyto- and Phytotoxicity Assessment.

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العنوان: Photocatalytic Degradation of Carbofuran in Water Using Laser-Treated TiO 2 : Parameters Influence Study, Cyto- and Phytotoxicity Assessment.
المؤلفون: Tošić, Miloš, Savić, Jasmina, Valenta Šobot, Ana, Živković, Sanja, Dimitrijević, Aleksandra, Ilić, Nevena, Dimitrijević-Branković, Suzana, Momčilović, Miloš
المصدر: Toxics; Aug2024, Vol. 12 Issue 8, p566, 16p
مصطلحات موضوعية: CHROMATOGRAPHIC detectors, TOXICITY testing, CARBOFURAN, CYTOTOXINS, LIGHT intensity
مستخلص: This study investigates the impact of changing parameters on the photocatalytic degradation of carbofuran (CBF) using laser-treated TiO2 nanotube arrays on a Ti mesh under simulated sunlight irradiation and assessing toxicity during photocatalytic degradation. Various parameters, including the stirring effect, light intensity, initial CBF concentration, and variation in the active surface area of laser-treated TiO2 photocatalysts, were examined to determine their impact on degradation efficiency. The photodegradation kinetics were monitored using ultra-performance liquid chromatography with a PDA detector (UPLC-PDA) and UV-Vis spectrophotometry, while mineralization was assessed by a total organic carbon (TOC) analyzer. The photocatalytic degradation of CBF is enhanced by an increase in the active surface area of the TiO2 photocatalyst, light intensity, and the introduction of stirring, but it decreases with an increase in the initial concentration of CBF. The toxicity assessments revealed that the cytotoxicity of CBF initially increased during the degradation process but decreased after further treatment, indicating the formation and subsequent breakdown of toxic intermediates. The phytotoxicity test showed that longer degradation times resulted in higher toxicity to plant growth. This study provides new insights into the photocatalytic degradation of CBF with TiO2, the importance of parameter optimization for more efficient treatment, and the use of toxicity tests to confirm the success of the photocatalytic process. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
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