☆ 4.8 Article

Wavelength-Dependent UV-LED Photolysis of Fluorinated Pesticides and Pharmaceuticals

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Chemistry, Analytical

Noise-Reduced Quantitative Fluorine NMR Spectroscopy Reveals the Presence of Additional Per- and Polyfluorinated Alkyl Substances in Environmental and Biological Samples When Compared with Routine Mass Spectrometry Methods

Jeremy R. Gauthier et al.

Summary: Per- and polyfluorinated alkyl substances (PFAS) are commonly found in the environment. Analysis of PFAS using mass spectrometry often underestimates the total fluorine concentration. This study utilized F-19 NMR technique to accurately detect and quantify PFAS compounds in environmental and biological samples, revealing the presence of PFAS that were missed by routine mass spectrometric methods.

ANALYTICAL CHEMISTRY (2022)

添加到收藏夹

Article Environmental Sciences

Photolysis of free chlorine and production of reactive radicals in the UV/chlorine system using polychromatic spectrum LEDs as UV sources

Guo-Qiang Li et al.

Summary: Recently, UV-LEDs and chlorine combined system has been used as an emerging advanced oxidation process, with investigations on the quantum yields of chlorine photolysis using polychromatic UV sources. Different trends in radical species productions were observed in 265 nm and 280 nm LED UV/chlorine systems as pH varied from 5.0 to 10.0.

CHEMOSPHERE (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Fluorine-containing agrochemicals in the last decade and approaches for fluorine incorporation

Qiang Wang et al.

Summary: This review describes the methodologies for fluorine incorporation of 40 fluorine-containing agrochemicals that have received an ISO name in the past decade. The predominant approach for fluorine introduction is through the use of fluorine-containing building blocks. The synthetic methods for hard-to-obtain fluorine-containing building blocks are specifically discussed. The main building blocks used include fluoroarenes, difluoromethylarenes, and trifluoromethylarenes, as well as fluorine-containing small molecules such as alcohols, amines, ketoesters, and olefins. The review also mentions the application of late-stage fluorination in the synthesis of the fungicide quinofumelin, and emphasizes the potential of these fluorine introduction methods in the development of new and economical pesticide synthetic routes.

CHINESE CHEMICAL LETTERS (2022)

添加到收藏夹

Article Engineering, Environmental

Finding Fluorine: Photoproduct Formation during the Photolysis of Fluorinated Pesticides

Akash P. Bhat et al.

Summary: This study evaluated the formation of fluorinated products in the photolysis of pesticides with different fluorine motifs. The results showed that the formation of fluoride varied among different pesticides and under different treatment processes. The structure of fluorine motifs also influenced the generation of products.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

添加到收藏夹

Article Engineering, Environmental

Degradation of iopromide during the UV-LED/chlorine reaction: Effect of wavelength, radical contribution, transformation products, and toxicity

Youngho Cha et al.

Summary: The degradation mechanism of iopromide under different UV-LED wavelengths and chlorine reaction was investigated. The degradation rate and contribution of different radical species varied with wavelength.

JOURNAL OF HAZARDOUS MATERIALS (2022)

添加到收藏夹

Article Engineering, Environmental

Enhanced Permanganate Activation under UVA-LED Irradiation: Unraveled Mechanism Involving Manganese Species and Hydroxyl Radical

Tao Yang et al.

Summary: This study introduced UVA-LED photolysis of Mn(VII) for degrading micropollutants and found that factors like light intensity, radiation wavelengths, pH, and water constituents affect the degradation rates of DCF and 4-CP. RMnS play a significant role in the degradation process.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

添加到收藏夹

Article Engineering, Environmental

Tracking Fluorine during Aqueous Photolysis and Advanced UV Treatment of Fluorinated Phenols and Pharmaceuticals Using a Combined 19F-NMR, Chromatography, and Mass Spectrometry Approach

Akash P. Bhat et al.

Summary: Fluorine incorporation into organic molecules has increased due to desirable changes in the molecular physiochemical properties. Photolysis of fluorinated compounds can lead to the formation of new fluorinated byproducts. Monitoring of product formation during photolysis of various fluorinated motifs is important due to the potential persistence and toxicity of these byproducts. 19F-NMR is a useful method to detect and quantify fluorine-containing species.

ACS ENVIRONMENTAL AU (2022)

添加到收藏夹

Review Chemistry, Multidisciplinary

Fluorine-containing pharmaceuticals approved by the FDA in 2020: Synthesis and biological activity

Yingjie Yu et al.

Summary: This review profiles thirteen new fluorine-containing drugs recently approved by the US FDA in 2020, covering a range of therapeutic areas including Alzheimer's disease, migraine, and various cancers. The approved drugs feature different types of fluorine groups, such as aromatic fluorine (Ar-F), aromatic Ar-CF3, aliphatic CHF and CF2. For each compound, the review provides details on biological activity, medicinal chemistry discovery, and synthetic approaches.

CHINESE CHEMICAL LETTERS (2021)

添加到收藏夹

Article Chemistry, Physical

Mechanism, Kinetics, and Ecotoxicity Assessment of •OH-Initiated Oxidation Reactions of Sulfoxaflor

G. Manonmani et al.

Summary: The reaction mechanism and kinetics of sulfoxaflor initiated by the center dot OH were investigated using electronic structure calculations. It was found that hydrogen atom abstraction from the C7 carbon atom is the more favorable reaction pathway. The subsequent reactions of sulfoxaflor with other atmospheric reactive species were studied in detail, with the products identified potentially contributing to secondary organic aerosol (SOA) formation in the atmosphere.

JOURNAL OF PHYSICAL CHEMISTRY A (2021)

添加到收藏夹

Article Engineering, Environmental

Rapid and Reproducible Characterization of the Wavelength Dependence of Aquatic Photochemical Reactions Using Light-Emitting Diodes

Collin P. Ward et al.

Summary: A new LED-based approach was introduced to study the wavelength dependence of aquatic photochemical reaction rates, showing strong agreement between irradiance measurements and chemical actinometry. This cost-effective, high-throughput, and portable method is found to be highly reproducible and effective in improving our understanding of the wavelength dependence of photochemical reactions in surface waters.

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS (2021)

添加到收藏夹

Article Engineering, Environmental

High Sample Throughput LED Reactor for Facile Characterization of the Quantum Yield Spectrum of Photochemically Produced Reactive Intermediates

Binbin Wu et al.

Summary: This study examines the importance of photochemically produced reactive intermediates (PPRIs) in aquatic biogeochemical processes and reveals the significant impact of spectra on their productions. Understanding the spectrum-dependence of PPRI productions can advance our knowledge of biogeochemical processes and pollutant dynamics. These findings emphasize the importance of considering both intensity and spectrum in determining PPRI productions and transformations under varying spatial-temporal and climatic conditions.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

添加到收藏夹

Article Engineering, Environmental

Direct UV photolysis of pharmaceutical compounds: Determination of pH-dependent quantum yield and full-scale performance

Pankaj Chowdhury et al.

CHEMICAL ENGINEERING JOURNAL (2020)

添加到收藏夹

Review Chemistry, Multidisciplinary

Contribution of Organofluorine Compounds to Pharmaceuticals

Munenori Inoue et al.

ACS OMEGA (2020)

添加到收藏夹

Article Environmental Sciences

The Environmental Degradation and Distribution of Saflufenacil, a Fluorinated Protoporphyrinogen IX Oxidase-Inhibiting Herbicide, on a Canadian Winter Wheat Field

Jeremy R. Gauthier et al.

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY (2020)

添加到收藏夹

Article Multidisciplinary Sciences

Current Contributions of Organofluorine Compounds to the Agrochemical Industry

Yuta Ogawa et al.

ISCIENCE (2020)

添加到收藏夹

Review Chemistry, Multidisciplinary

Pharmaceuticals of Emerging Concern in Aquatic Systems: Chemistry, Occurrence, Effects, and Removal Methods

Manvendra Patel et al.

CHEMICAL REVIEWS (2019)

添加到收藏夹

Article Environmental Sciences

Identification and Characterization of Herbicide Penoxsulam Transformation Products in Aqueous Media by UPLC-QTOF-MS

Guofeng Chen et al.

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY (2019)

添加到收藏夹

Article Engineering, Environmental

Transformation Products of Fluoxetine Formed by Photodegradation in Water and Biodegradation in Zebrafish Embryos (Danio rerio)

Selina Tisler et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

添加到收藏夹

Article Environmental Sciences

Identification of photoproducts of florasulam in water using UPLC-QTOF-MS

Yuxin Qiao et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2019)

添加到收藏夹

Article Engineering, Environmental

Heterogeneous photocatalytic degradation of ibuprofen in ultrapure water, municipal and pharmaceutical industry wastewaters using a TiO2/UV-LED system

Nabil Jallouli et al.

CHEMICAL ENGINEERING JOURNAL (2018)

添加到收藏夹

Article Engineering, Environmental

Wavelength-dependent chlorine photolysis and subsequent radical production using UV-LEDs as light sources

Ran Yin et al.

WATER RESEARCH (2018)

添加到收藏夹

Review Engineering, Environmental

Recent advances in application of UV light-emitting diodes for degrading organic pollutants in water through advanced oxidation processes: A review

Galina Matafonova et al.

WATER RESEARCH (2018)

添加到收藏夹

Article Biochemistry & Molecular Biology

Photosensitisation by voriconazole-N-oxide results from a sequence of solvent and pH-dependent photochemical and thermal reactions

P. Morliere et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY (2018)

添加到收藏夹

Article Engineering, Environmental

Development of a method for the characterization and operation of UV-LED for water treatment

Ataollah Kheyrandish et al.

WATER RESEARCH (2017)

添加到收藏夹

Article Engineering, Environmental

Degradation of ciprofloxacin by UV and UV/H2O2 via multiple-wavelength ultraviolet light-emitting diodes: Effectiveness, intermediates and antibacterial activity

Hua-se Ou et al.

CHEMICAL ENGINEERING JOURNAL (2016)

添加到收藏夹

Article Engineering, Environmental

Direct Photolysis Rates and Transformation Pathways of the Lampricides TFM and Niclosamide in Simulated Sunlight

Megan B. McConville et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

添加到收藏夹

Review Engineering, Environmental

Application of ultraviolet light-emitting diodes (UV-LEDs) for water disinfection: A review

Kai Song et al.

WATER RESEARCH (2016)

添加到收藏夹

Article Engineering, Environmental

Identification of Novel Fluorinated Surfactants in Aqueous Film Forming Foams and Commercial Surfactant Concentrates

Lisa A. D'Agostino et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2014)

添加到收藏夹

Article Environmental Sciences

Evaluating the impact of LED bulb development on the economic viability of ultraviolet technology for disinfection

Mohamed A. S. Ibrahim et al.

ENVIRONMENTAL TECHNOLOGY (2014)

添加到收藏夹

Review Chemistry, Inorganic & Nuclear

Successful fluorine-containing herbicide agrochemicals

Tomoya Fujiwara et al.

JOURNAL OF FLUORINE CHEMISTRY (2014)

添加到收藏夹

Article Chemistry, Physical

Determination of the quantum yields of the potassium ferrioxalate and potassium iodide-iodate actinometers and a method for the calibration of radiometer detectors

James R. Bolton et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY (2011)

添加到收藏夹

Article Engineering, Environmental

Application of GaN-based ultraviolet-C light emitting diodes - UV LEDs - for water disinfection

M. A. Wuertele et al.

WATER RESEARCH (2011)

添加到收藏夹

Article Chemistry, Physical

The ferrioxalate and iodide-iodate actinometers in the UV region

Sara Goldstein et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY (2008)

添加到收藏夹

Article Multidisciplinary Sciences

An aluminium nitride light-emitting diode with a wavelength of 210 nanometres

Y Taniyasu et al.

NATURE (2006)

添加到收藏夹

Article Engineering, Environmental

Aqueous photochemical reaction kinetics and transformations of fluoxetine

MW Lam et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2005)

添加到收藏夹

Article Chemistry, Physical

Wavelength-dependent photolysis of n-butyraldehyde and i-butyraldehyde in the 280-330-nm region

YQ Chen et al.

JOURNAL OF PHYSICAL CHEMISTRY A (2002)

添加到收藏夹

Article Engineering, Environmental

Monitoring perfluorinated surfactants in biota and surface water samples following an accidental release of fire-fighting foam into Etobicoke Creek

CA Moody et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2002)

添加到收藏夹

Article Chemistry, Analytical

Determination of perfluorinated surfactants in surface water samples by two independent analytical techniques:: Liquid chromatography/tandem mass spectrometry and 19F NMR

CA Moody et al.

ANALYTICAL CHEMISTRY (2001)

添加到收藏夹

Article Engineering, Environmental

The aqueous photolysis of TFM and related trifluoromethylphenols. An alternate source of trifluoroacetic acid in the environment

DA Ellis et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2000)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.