Photo Catalytic Activity of CNT-TiO 2 Nano Composite in Degrading Anionic and Cationic Dyes

A CNT- nano composite was prepared from titanium chloride () via sol-gel process using multi walled carbon nano tube (MWCNT) followed by calcination at . Spectral analysis revealed that the formed resided on the carbon in anatase form. The effect of adsorption was investigated using aqueous solution of methylene blue and procion blue dye. The photochemical reaction of CNT- composite in aqueous suspensions was studied under UV illumination in batch process. The reaction was investigated by monitoring the discoloration of the dyes employing UV-Visible spectro-photometeric technique as a function of irradiation time. The catalyst composites were found to be efficient for the photodegradation of the dye.

[1]  K. Palanivelu,et al.  Removal of Hexavalent Chromium on Chitosan-Deposited Activated Carbon , 2008 .

[2]  Megha Mathur,et al.  Removal of the hazardous dye rhodamine B through photocatalytic and adsorption treatments. , 2007, Journal of environmental management.

[3]  G. Madras,et al.  Photocatalytic degradation of Azure and Sudan dyes using nano TiO2. , 2007, Journal of hazardous materials.

[4]  J. Zavickis,et al.  Polyisoprene—multi-wall carbon nanotube composites for sensing strain , 2007 .

[5]  Maurizio Prato,et al.  Decorating carbon nanotubes with metal or semiconductor nanoparticles , 2007 .

[6]  J. Schoonman,et al.  Addition of carbon to anatase TiO2 by n-hexane treatment- : surface or bulk doping? , 2006 .

[7]  D. Mazyck,et al.  Microwave-Assisted Preparation of TiO2/Activated Carbon Composite Photocatalyst for Removal of Methanol in Humid Air Streams , 2006 .

[8]  N. Cresswell,et al.  Deposition of anatase on the surface of activated carbon , 2004 .

[9]  Di Li,et al.  Photocatalysis of sprayed nitrogen-containing Fe2O3–ZnO and WO3–ZnO composite powders in gas-phase acetaldehyde decomposition , 2003 .

[10]  Antoni W. Morawski,et al.  Application of TiO2-mounted activated carbon to the removal of phenol from water , 2003 .

[11]  M. Rincón,et al.  Visible light-induced degradation of blue textile azo dye on TiO2=CdO-ZnO coupled nanoporous films , 2003 .

[12]  S. Licoccia,et al.  Sol-Gel Preparation and Characterization of Ag-TiO2 Nanocomposite Thin Films , 2000 .

[13]  Tsukasa Torimoto,et al.  Titanium dioxide/adsorbent hybrid photocatalysts for photodestruction of organic substances of dilute concentrations , 2000 .

[14]  H. Yoneyama,et al.  Influence of carbon black as an adsorbent used in TiO2 photocatalyst films on photodegradation behaviors of propyzamide , 1998 .

[15]  H. Qingguo,et al.  A study on dye photoremoval in TiO2 suspension solution , 1997 .

[16]  H. Yoneyama,et al.  Effects of Adsorbents Used as Supports for Titanium Dioxide Loading on Photocatalytic Degradation of Propyzamide , 1996 .

[17]  Walter Z. Tang,et al.  Photocatalytic degradation kinetics and mechanism of acid blue 40 by TiO2/UV in aqueous solution , 1995 .

[18]  Jing Sun,et al.  Single-walled carbon nanotubes coated with titania nanoparticles , 2004 .