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2 Chlorophenol

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Brid Quilty – One of the best experts on this subject based on the ideXlab platform.

  • The Influence of Glucose and Fructose on the Degradation of 2Chlorophenol by Pseudomonas putida CP1
    World Journal of Microbiology & Biotechnology, 2005
    Co-Authors: Anm Fakhruddin, Brid Quilty

    Abstract:

    Pseudomonas putida CP1 grew on 2Chlorophenol when supplied as the sole source of carbon. Chlorophenol degradation was stimulated in the presence of low concentrations of glucose (0.05–1%, w/v). Substrate removal was inhibited and there was a significant fall in pH with concentrations of glucose greater than 1.0% (w/v). When the pH was controlled at pH 7.0 inhibition of substrate removal was alleviated. The rate of removal of 2Chlorophenol was greater in the presence of fructose than in the presence of glucose. P. putida CP1 formed clumps of cells when grown on 2Chlorophenol and fructose but not on glucose. When the organism was grown on a combination of 2Chlorophenol and an additional carbon source clumping was present but to a lesser degree.

  • The enhancement of 2Chlorophenol degradation by a mixed microbial community when augmented with Pseudomonas putida CP1.
    Water research, 2002
    Co-Authors: Alan Farrell, Brid Quilty

    Abstract:

    The effect of the introduction of Pseudomonas putida CP1 to a commercial mixed microbial community for the degradation of 1.56 mM 2Chlorophenol was investigated. Degradation of 2Chlorophenol by the commercial mixture was via a meta-cleavage pathway leading to incomplete degradation, while P. putida CP1 was shown to be capable of the complete degradation of 2Chlorophenol via an ortho-cleavage pathway. Augmentation of the commercial mixed culture with P. putida CP1 resulted in complete degradation of 2Chlorophenol via an ortho-cleavage pathway. The augmented mixed culture displayed increased degradative capabilities, with times of degradation reduced when compared to those achieved by P. putida CP1 in isolation. The ability of P. putida CP1 to degrade 2Chlorophenol was increased with the addition of increasing concentrations of the mixed culture. Increasing the mixed culture inoculum size added to P. putida CP1 decreased lag periods and increased rates of degradation, resulting in decreased times of degradation.

A. Chianese – One of the best experts on this subject based on the ideXlab platform.

  • Fe_3O_4/SiO_2/TiO_2 nanoparticles for photocatalytic degradation of 2Chlorophenol in simulated wastewater
    Environmental Science and Pollution Research, 2015
    Co-Authors: Jamshaid Rashid, M. A. Barakat, Y. Ruzmanova, A. Chianese

    Abstract:

    Photocatalysis has emerged as an advance and environmental-friendly process for breakdown of organic contaminants in wastewater. This work reports facile synthesis and characterization of stable magnetic core-shell-shell Fe_3O_4/SiO_2/TiO_2 nanoparticles and their effectiveness for photocatalysis. The surface morphology, crystal structure, and chemical properties of the photocatalyst were characterized by using scanning electron microscope (SEM), energy-dispersive X-ray (EDX), X-ray diffraction (XRD), and nitrogen physisorption. Stability of synthesized nanoparticles in aqueous medium was tested by leaching test. The photocatalytic degradation of 2Chlorophenol was investigated and reaction parameters for best catalyst performance were optimized. Catalyst dose of 0.5 g/L under optimized conditions produced complete degradation of 25 mg/L 2Chlorophenol (2-CP) within 130 min of 100-W ultraviolet (UV) irradiation while 97.2 % degradation of 50 mg/L 2-CP was achieved within 3 h. The rate of photocatalytic degradation was determined by considering pseudo first-order kinetics and Hugul’s kinetic equations. The Hugul’s kinetics was found to provide a better interpretation of the experimental results than the generally adopted pseudo first-order reaction kinetics.

  • fe3o4 sio2 tio2 nanoparticles for photocatalytic degradation of 2 Chlorophenol in simulated wastewater
    Environmental Science and Pollution Research, 2015
    Co-Authors: Jamshaid Rashid, M. A. Barakat, Y. Ruzmanova, A. Chianese

    Abstract:

    Photocatalysis has emerged as an advance and environmental-friendly process for breakdown of organic contaminants in wastewater. This work reports facile synthesis and characterization of stable magnetic core-shell-shell Fe3O4/SiO2/TiO2 nanoparticles and their effectiveness for photocatalysis. The surface morphology, crystal structure, and chemical properties of the photocatalyst were characterized by using scanning electron microscope (SEM), energy-dispersive X-ray (EDX), X-ray diffraction (XRD), and nitrogen physisorption. Stability of synthesized nanoparticles in aqueous medium was tested by leaching test. The photocatalytic degradation of 2Chlorophenol was investigated and reaction parameters for best catalyst performance were optimized. Catalyst dose of 0.5 g/L under optimized conditions produced complete degradation of 25 mg/L 2Chlorophenol (2-CP) within 130 min of 100-W ultraviolet (UV) irradiation while 97.2 % degradation of 50 mg/L 2-CP was achieved within 3 h. The rate of photocatalytic degradation was determined by considering pseudo first-order kinetics and Hugul’s kinetic equations. The Hugul’s kinetics was found to provide a better interpretation of the experimental results than the generally adopted pseudo first-order reaction kinetics.

Misook Kang – One of the best experts on this subject based on the ideXlab platform.

  • decomposition of 2 Chlorophenol using a tourmaline photocatalytic system
    Journal of Industrial and Engineering Chemistry, 2008
    Co-Authors: Sun Ho Song, Misook Kang

    Abstract:

    Abstract 10.0 wt.% tourmaline mineral was loaded onto amorphous TiO2 and treated at 100–900 °C to obtain anatase and rutile structures, respectively, and were used for the photodecomposition of 2Chlorophenol. Tourmaline (10.0 wt.%)/TiO2 (anatase) and pure TiO2 (anatase) adsorbed 2Chlorophenol at 15 ppm and 8 ppm, respectively. 2Chlorophenol was completely decomposed after 42 h in 10.0 wt.% tourmaline/TiO2 (anatase), by a first-order rate equation. The decomposition rate increased with increasing catalyst amount and tourmaline concentration to give optimal conditions of 1.0 g/L and 12.5 wt.%, respectively. The decomposition of 2Chlorophenol was also affected by H2O2 addition and pH regulation. The decomposition rate reached 40.0 ppm/h when 10.0 mL/L of H2O2 was added to the feed solution, and 100 ppm of 2Chlorophenol was completely removed after 21 h at pH 11.0.

  • Decomposition of 2Chlorophenol using a tourmaline–photocatalytic system
    Journal of Industrial and Engineering Chemistry, 2008
    Co-Authors: Sun Ho Song, Misook Kang

    Abstract:

    Abstract 10.0 wt.% tourmaline mineral was loaded onto amorphous TiO2 and treated at 100–900 °C to obtain anatase and rutile structures, respectively, and were used for the photodecomposition of 2Chlorophenol. Tourmaline (10.0 wt.%)/TiO2 (anatase) and pure TiO2 (anatase) adsorbed 2Chlorophenol at 15 ppm and 8 ppm, respectively. 2Chlorophenol was completely decomposed after 42 h in 10.0 wt.% tourmaline/TiO2 (anatase), by a first-order rate equation. The decomposition rate increased with increasing catalyst amount and tourmaline concentration to give optimal conditions of 1.0 g/L and 12.5 wt.%, respectively. The decomposition of 2Chlorophenol was also affected by H2O2 addition and pH regulation. The decomposition rate reached 40.0 ppm/h when 10.0 mL/L of H2O2 was added to the feed solution, and 100 ppm of 2Chlorophenol was completely removed after 21 h at pH 11.0.