Methyl orange degradation by pulsed discharge in the presence of activated carbon fibers

The effects of activated carbon fibers (ACF0, ACFH, and ACFN) on the degradation of methyl orange were investigated in a pulsed discharge reactor. ACF0 fibers were modified with nitric acid (to yield ACFH fibers) or ammonia (to yield ACFN fibers) to create fibers with different porous structures and chemical properties. The adsorption properties of ACF0, ACFH, and ACFN depended on their pore diameter, but the catalytic properties were independent of their chemical properties. Acidic and basic surfaces both accelerated ozone decomposition, resulting in formation of hydroxyl radicals. Boehm titration and Fourier-transform infrared spectral studies indicated that the numbers of acidic and basic groups on ACF0, ACFH, and ACFN surfaces could be increased by this process, as could the surface areas and pores volumes. ACF0, ACFH, and ACFN could also be regenerated in situ after repeated use.

[1]  B. Locke,et al.  Influence of iron on degradation of organic dyes in corona. , 2005, Journal of hazardous materials.

[2]  W. C. Finney,et al.  The role of Fenton’s reaction in aqueous phase pulsed streamer corona reactors , 2001 .

[3]  J. Jang,et al.  A study on the effect of heat treatment on functional groups of pitch based activated carbon fiber using FTIR , 1997 .

[4]  V. Gómez-Serrano,et al.  The influence of various factors on aqueous ozone decomposition by granular activated carbons and the development of a mechanistic approach , 2006 .

[5]  U. Gunten,et al.  Efficiency of activated carbon to transform ozone into *OH radicals: influence of operational parameters. , 2005, Water research.

[6]  Ajm Guus Pemen,et al.  Breakdown of methylene blue and methyl orange by pulsed corona discharge , 2007 .

[7]  Domingo-García,et al.  Effect of Some Oxidation Treatments on the Textural Characteristics and Surface Chemical Nature of an Activated Carbon. , 2000, Journal of colloid and interface science.

[8]  S. Kodama,et al.  Estimation of point of zero charge for activated carbon treated with atmospheric pressure non-thermal oxygen plasmas , 2006 .

[9]  A. E. Greenberg,et al.  Standard methods for the examination of water and wastewater : supplement to the sixteenth edition , 1988 .

[10]  Bruce R. Locke,et al.  Electrohydraulic Discharge and Nonthermal Plasma for Water Treatment , 2006 .

[11]  Ming-hua Zhou,et al.  Synergistic effects of liquid and gas phase discharges using pulsed high voltage for dyes degradation in the presence of oxygen. , 2005, Chemosphere.

[12]  V. Gómez-Serrano,et al.  Textural and Chemical Surface Modifications Produced by Some Oxidation Treatments of a Glassy Carbon , 2003 .

[13]  V. Gómez-Serrano,et al.  Oxidation of Activated Carbon in Liquid Phase. Study by FT-IR , 1993 .

[14]  W. C. Finney,et al.  Aqueous phase pulsed streamer corona reactor using suspended activated carbon particles for phenol oxidation : Model-data comparison , 1999 .

[15]  J. Shim,et al.  Effect of modification with HNO3 and NaOH on metal adsorption by pitch-based activated carbon fibers , 2001 .

[16]  Honggang Chen,et al.  Effect of granular activated carbon on degradation of methyl orange when applied in combination with high-voltage pulse discharge. , 2007, Journal of colloid and interface science.

[17]  J. A. Menéndez,et al.  Infrared Spectroscopy of Carbon Materials: A Quantum Chemical Study of Model Compounds , 2003 .

[18]  C. Zaror,et al.  Ozonation of benzothiazole saturated-activated carbons: influence of carbon chemical surface properties. , 2006, Journal of hazardous materials.

[19]  S. Biniak,et al.  The characterization of activated carbons with oxygen and nitrogen surface groups , 1997 .

[20]  F. J. Maldonado-Hódar,et al.  Effects of non-oxidant and oxidant acid treatments on the surface properties of an activated carbon with very low ash content , 1998 .

[21]  J. Yates,et al.  FTIR study of the oxidation of amorphous carbon by ozone at 300 K — Direct COOH formation , 2001 .

[22]  V. Gómez-Serrano,et al.  Formation of oxygen structures by air activation. A study by FT-IR spectroscopy , 1999 .

[23]  J. Órfão,et al.  Ozonation of aniline promoted by activated carbon. , 2007, Chemosphere.

[24]  Yanzong Zhang,et al.  Design of a novel non-equilibrium plasma-based water treatment reactor. , 2008, Chemosphere.

[25]  S. Biniak,et al.  Effect of Activated Carbon Surface Oxygen- and/or Nitrogen-Containing Groups on Adsorption of Copper(II) Ions from Aqueous Solution† , 1999 .

[26]  F. Beltrán,et al.  Ozonation of activated carbons: Effect on the adsorption of selected phenolic compounds from aqueous solutions. , 2005, Journal of colloid and interface science.

[27]  Christian L. Mangun,et al.  Surface chemistry, pore sizes and adsorption properties of activated carbon fibers and precursors treated with ammonia , 2001 .

[28]  Xingxing Cheng,et al.  Kinetics of decolorization of azo dye by bipolar pulsed barrier discharge in a three-phase discharge plasma reactor. , 2007, Journal of hazardous materials.