Photocatalytic discoloration of Acid Red 14 aqueous solution using titania nanoparticles immobilized on graphene oxide fabricated plate.
Textile industry consumes remarkable amounts of water during various operations. A significant portion of the water discharge to environment is in the form of colored contaminant. The present research reports the photocatalytic degradation of anionic dye effluent using immobilized TiO2 nanoparticle on graphene oxide (GO) fabricated carbon electrodes. Acid Red 14 (AR 14) was used as model compound. Graphene oxide nanosheets were synthesized from graphite powder using modified Hummer's method. The nanosheets were characterized with field emission scanning electron microscope (FESEM) images, X-ray diffraction (XRD) and FTIR spectrum. The GO nanoparticles were deposited on carbon electrode (GO-CE) by electrochemical deposition (ECD) method and used as catalyst bed. TiO2 nanoparticles were fixed on the bed (GO-CE- TiO2) with thermal process. Photocatalytic processes were carried out using a 500 ml solution containing dye in batch mode. Each photocatalytic treatment were carried out for 120 min. Effect of dye concentration (mg/L), pH of solution, time (min) and TiO2 content (g/L) on the photocatalytic decolorization was investigated.
Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran.
Abdollah Gholami
AG
Akerdi
Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran. Electronic address: hajirb@aut.ac.ir.
S Hajir
SH
Bahrami
Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran.
Mokhtar
M
Arami
Textile Engineering Department, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran.
Elmira
E
Pajootan
D001391:Azo Compounds / Q000737:chemistry*; D002244:Carbon; D002384:Catalysis; D055664:Electrochemical Techniques; D052918:Environmental Restoration and Remediation; D006108:Graphite / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D010087:Oxides / Q000737:chemistry; D055668:Photochemical Processes; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry*; D014877:Water Pollution, Chemical; D014961:X-Ray Diffraction
C469409:Acid red 14; D001391:Azo Compounds; D010087:Oxides; C009495:titanium dioxide; D002244:Carbon; D006108:Graphite; D014025:Titanium
Anionic dye; Decolorization; Graphene oxide fabricated electrode; Immobilized photocatalyst; Nanoparticle