The following menu user interface control may not be accessible. Tab to the next button to revert the control to an accessible version. Destroy user interface control NCBI Skip to main content Skip to navigation Resources How To About NCBI Accesskeys Sign in to NCBI PubMed US National Library of Medicine National Institutes of Health Search termSearch database The following autocomplete user interface control may not be accessible. Tab to the next button to revert the control to an accessible version. Destroy user interface control Advanced Help Result Filters The following popper user interface control may not be accessible. Tab to the next button to revert the control to an accessible version. Destroy user interface control Display Settings: Abstract The following popper user interface control may not be accessible. Tab to the next button to revert the control to an accessible version. Destroy user interface control Send to: Performing your original search, photodegradation of atrazine by photo Fenton, in PubMed will retrieve 4 records. Huan Jing Ke Xue. 2012 Apr;33(4):1252-9. [Study on the degradation of atrazine in photo-Fenton-like system under visible light irradiation promoted by N-doped Ta2O5]. [Article in Chinese] Zhao L, Deng YR, Du YX, Fu X. Source State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China. zhaolu0503@gmail.com Abstract In this study, N-doped Ta2O5 samples which have strong absorption in visible domain, were prepared by the nitridation of Ta2O5 under NH4 flow and then added into photoFenton-like system to enhance Fe3+ reduction and atrazine degradation under visible light irradiation. The sample prepared at 700 degrees C under a NH3 flow rate of 0.3 L x min(-1) for 6 h showed the highest level of photocatalytic activity for Fe3+ reduction. The influence of various operational parameters such as the light intensity, input of Ndoped Ta2O5, pH and initial concentrations of Fe3+, H2O2 and atrazine were investigated. And the changesof H2O2 during the degradation were measured to explain the effect of the operational parameters. The degradation ratio of atrazine reached 97% after 60 min irradiation by 500 W Xe lamp under the conditions of pH = 2.6, [atrazine]0 = 18 mg x L(-1), [H2O2]0 = 2.5 mmol x L(-1), [Fe3+]0 = 0.5 mmol x L(-1) and the input of N-doped Ta2O5 = 0.6 g x L(-1). PMID: 22720574 [PubMed - in process] J Hazard Mater. 2008 Jun 30;155(1-2):312-9. doi: 10.1016/j.jhazmat.2007.11.062. Epub 2007 Nov 23. Photocatalytic degradation of Orange G on nitrogen-doped TiO2 catalysts under visible light and sunlight irradiation. Sun J, Qiao L, Sun S, Wang G. Source Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, College of Chemistry and Environmental Science, No. 46, Jianshe Road, Xinxiang, Henan Province 453007, PR China. sunjh@henannu.edu.cn Abstract In this paper, the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation, the doped TiO2 nanocatalysts demonstrated higher activity than the commercial Dugussa P25 TiO2, allowing more efficient utilization of solar light, while under sunlight, P25 showed higher photocatalytic activity. According to the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-vis spectra analyses, it was found that both the nanosized anatase structure and the appearance of new absorption band in the visible region caused by nitrogen doping were responsible for the significant enhancement of OG degradation under visible light. In addition, the photosensitized oxidation mechanism originated from OG itself was also considered contributing to the higher visible-light-induced degradation efficiency. The effect of the initial pH of the solution and the dosage of hydrogen peroxide under different light sources was also investigated. Under visible light and sunlight, the optimal solution pH was both 2.0, while the optimal dosage of H2O2 was 5.0 and 15.0 mmol/l, respectively. Water Sci Technol. 2012;66(10):2209-16. doi: 10.2166/wst.2012.439. Quantum efficiencies of the photoFenton degradation of atrazine in water. Benzaquén TB, Isla MA, Alfano OM. Source INTEC, UNL- CONICET, Santa Fe, Argentina. Abstract An experimental work in a well-stirred batch recycling reactor for the photo-Fenton degradation of atrazine in water is presented. A study of the quantum efficiency is performed to assess the effectiveness of the photo-Fenton process on the atrazine degradation and total organic carbon (TOC) mineralization. Apparent and absolute quantum efficiencies of degradation and mineralization of an atrazine-based commercial herbicide are determined under different experimental conditions. Higher apparent efficiencies were found for both atrazine degradation and TOC mineralization when the ferric ion and hydrogen peroxide concentrations are increased. Because of the well known stability of the triazine ring, atrazine was not completely mineralized by the photo-Fenton process. However, a TOC reduction of 40% was achieved, being 62.5% of the maximum value that can be reached. Photo-Fenton degradation of alachlor, atrazine, chlorfenvinphos, diuron, isoproturon and pentachlorophenol at solar pilot plant Int. Journal Environment and Pollution Environment and Sustainable Development Issue Volume 27, Number 1-3/2006 Pages 135-146 Subject Group . Energy and Environment Online Date Tuesday, July 25, 2006 Authors M.I. Maldonado Rubio, W. Gernjak, I. Oller Alberola, J. Blanco Galvez, P. Fernandez-Ibanez, S. Rodriguez 1 Plataforma Solar de Almeria (CIEMAT), Carretera Senes, Km 4, Tabernas, Almeria 04200, Spain. Abstract Homogeneous photocatalysis by photo-Fenton processes has been applied to the degradation of six water-soluble pesticides (alachlor, atrazine, chlorfenvinphos, diuron, isoproturon and pentachlorophenol), considered priority substances by the European Union Water Framework Directive (Directive 2000/60/EC). All tests were performed in a 35-L solar pilot plant with compound parabolic collectors (CPCs) under natural sunlight. The initial concentration tested for all the compounds was 50 mg/L except for those less soluble in water. Two different concentrations of iron were tested, 2 mg/L and 1 mM. All pesticides were successfully degraded and substantially mineralised. Total dechlorination was clearly attained more quickly than 90% of mineralisation in all cases. Several operating parameters, treatment time, hydrogen peroxide consumption and iron concentration, involved in the degradation of the parent compounds and their mineralisation are discussed. Keywords advanced oxidation processes, pesticide degradation, iron, photocatalysis, photo-Fenton, solar energy, wastewater treatment, alachlor, atrazine, chlorfenvinphos, diuron, isoproturon, mineralisation, pentachlorophenol, water-soluble pesticides, dechlorination