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Oxidative Degradation of Nalidixic Acid by Nano-magnetite via Fe2+/O2-Mediated Reactions

20-Mar-2015 | Sandy G. Ardo; Sylvie Nélieu; Georges Ona-Nguema; Ghislaine Delarue; Jessica Brest; Elsa Pironin; Guillaume Morin, Environmental Science & Technology, 2015

Organic pollution has become a critical issue worldwide due to the increasing input and persistence of organic compounds in the environment. Iron minerals are potentially able to degrade efficiently organic pollutants sorbed to their surfaces via oxidative or reductive transformation processes. ...

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Controlling Factors in the Rates of Oxidation of Anilines and Phenols by Triplet Methylene Blue in Aqueous Solution

19-Mar-2015 | Paul R. Erickson; Nicolas Walpen; Jennifer J. Guerard; Soren N. Eustis; J. Samuel Arey; Kristopher McNeill, Journal of Physical Chemistry A, 2015

Anilines and phenols are structurally similar compound classes that both are susceptible to oxidation by excited state triplet sensitizers but undergo oxidation by different mechanisms. To gain an understanding of the factors that control the rate of oxidation of anilines and phenols by triplet ...

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X-ray Accelerated Photo-Oxidation of As(III) in Solution

17-Mar-2015 | Jesus Canche-Tello; M. Cristina Vargas; Jorge Hérnandez-Cobos; Iván Ortega-Blake; Amelie Leclercq; Pierre Lorenzo So ..., Journal of Physical Chemistry A, 2015

We performed near edge X-ray absorption spectroscopy (XANES) measurements on the arsenic K-edge of As(III) in solution under acidic and basic conditions, after exposure of the solutions to air. Spectra were recorded for increasing exposure times to the X-rays used to perform absorption ...

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Enzyme Induced Formation of Monodisperse Hydrogel Nanoparticles Tunable in Size

17-Mar-2015 | Vera Bocharova; Danna Sharp; Aaron Jones; Shiwang Cheng; Philip J. Griffin; Alexander L. Agapov; Dmitry Voylov; Yang ..., Chemistry of Materials, 2015

We report a novel approach to synthesize monodisperse hydrogel nanoparticles that are tunable in size. The distinctive feature of our approach is the use of a multicopper oxidase enzyme, laccase, as both a biocatalyst and template for nanoparticle growth. We utilize the ferroxidase activity of ...

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Tungsten Carbide Synthesized by Polystyrene Sphere Template Method Promoting Pd Electrocatalyst for Alcohol Oxidation in Alkaline Media

16-Mar-2015 | Z. Yan, Y. Gu, W. Wei, Z. Jiang, J. Xie, P. K. Shen, Fuel Cells, 2015

Abstract Tungsten carbide (WC) particles loading on hollow carbon spheres (HCS) have been synthesized by using ammonium metatungstate as W source, glucose as carbon source, P123 as dispersant and polystyrene sphere as template. The typical WC‐HCS composite has the WC particle sizes of 5–20 nm, ...

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Sensitive impedimetric detection of microRNAs using a hairpin probe based on DNAzyme-functionalized gold nanoparticle tag-initiated deposition of an insulating film on gold electrode

15-Mar-2015 | Author(s): Jingzhuan Wan , Xuhui Liu , Yonghua Zhang , Qiang Gao , Honglan Qi , Chengxiao Zhang, Sensors and Actuators B: Chemical, 2015

Publication date: 5 July 2015 Source:Sensors and Actuators B: Chemical, Volume 213 Author(s): Jingzhuan Wan , Xuhui Liu , Yonghua Zhang , Qiang Gao , Honglan Qi , Chengxiao Zhang An ultrasensitive impedimetric miRNA assay based on DNAzyme tag-initiated deposition of an insulating film ...

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Optimisation of parameters in a solar light-induced photoelectrocatalytic process with a TiO2/Ti composite electrode prepared by paint-thermal decomposition

15-Mar-2015 | Author(s): Yasmina Bennani , Peter Appel , Luuk C. Rietveld, Journal of Photochemistry and Photobiology A: Chemistry, 2015

Publication date: Available online 14 March 2015 Source:Journal of Photochemistry and Photobiology A: Chemistry Author(s): Yasmina Bennani , Peter Appel , Luuk C. Rietveld This paper presents an outline of the effects of photoelectrocatalytic operating parameters in a batch reactor on ...

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Materials, Vol. 8, Pages 1108-1123: Corrosion Behavior of Detonation Gun Sprayed Fe-Al Type Intermetallic Coating

13-Mar-2015 | Senderowski, Cezary ; Chodala, Michal ; Bojar, Zbigniew, Materials, 2015

The detonation gun sprayed Fe-Al type coatings as an alternative for austenitic valve steel, were investigated using two different methods of testing corrosion resistance. High temperature, 10-hour isothermal oxidation experiments at 550, 750, 950 and 1100 °C show differences in the oxidation ...

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Influence of Copper Recovery on the Water Quality of the Acidic Berkeley Pit Lake, Montana, U.S.A.

12-Mar-2015 | Nicholas J. Tucci; Christopher H. Gammons, Environmental Science & Technology, 2015

The Berkeley Pit lake in Butte, Montana, formed by flooding of an open-pit copper mine, is one of the world’s largest accumulations of acidic, metal-rich water. Between 2003 and 2012, approximately 2 × 1011 L of pit water, representing 1.3 lake volumes, were pumped from the bottom of the lake to ...

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Coating Effects of Orange and Pomegranate Peel Extracts Combined with Chitosan Nanoparticles on the Quality of Refrigerated Silver Carp Fillets

11-Mar-2015 | Mehdi Zarei, Zahra Ramezani, Shekufeh Ein‐Tavasoly, Milad Chadorbaf, Journal of Food Processing and Preservation, 2015

Abstract The coating effects of orange and pomegranate peel extract combined with chitosan nanoparticles on the quality of silver carp (Hypophthalmicthys molitrix) fillets during refrigerated storage at 4C were evaluated. Solutions of orange and pomegranate peel extracts (1%, w/v) was used ...

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