Treatment of an Azo Dye by Citrate Catalyzed Photoelectro-Fenton Process Under Visible Light using Carbon Nanotube-polytetrafluoroethylene Cathode

Title
Treatment of an Azo Dye by Citrate Catalyzed Photoelectro-Fenton Process Under Visible Light using Carbon Nanotube-polytetrafluoroethylene Cathode
Author(s)
주상우알리레자카타이Hadi Marandizadeh[Hadi Marandizadeh]Mahmoud Zarei[Mahmoud Zarei]Soheil Aber[Soheil Aber]Behrouz Vahid[Behrouz Vahid]요네스피로즈살라리
Keywords
PEROXI-COAGULATION PROCESSES; ARTIFICIAL NEURAL-NETWORKS; ELECTRO-FENTON; OPERATIONAL PARAMETERS; WATER-TREATMENT; ANODIC-OXIDATION; AQUEOUS-MEDIUM; TEXTILE DYE; WASTE-WATER; DEGRADATION
Issue Date
201306
Publisher
BENTHAM SCIENCE PUBL LTD
Citation
CURRENT NANOSCIENCE, v.9, no.3, pp.387 - 393
Abstract
Degradation of C.I. Direct Red 23 (DR23) was investigated by photoelectro-Fenton (PEF) process in the presence of citrate catalyst under visible light irradiation of 6W. Multi walled carbon nanotubes (CNTs) were characterized by transmission electron microscopy (TEM), which had approximately internal and external diameters of 6 nm and 22 nm, respectively. CNTs were stabilized on carbon paper utilizing polytetrafluoroethylene (PTFE) and stabilization was confirmed by scanning electron microscopy (SEM). Results revealed that the degradation efficiency followed the order of PEF/citrate > PEF > EF at the same operational conditions after 90 min treatment of 20 mg/L DR23. The effect of some operational parameters such as applied current, initial pH, initial dye concentration and Fe(III) to citrate ratio on PEF/citrate process was studied. Artificial neural network (ANN) was applied not only to develop a model to predict the degradation efficiency with reasonable performance (R-2 = 0.988), but also to determine the relative importance of operational parameters for PEF/citrate process.
URI
http://hdl.handle.net/YU.REPOSITORY/29830
ISSN
1573-4137
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공과대학 > 기계공학부 > Articles
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