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Photocatalytic degradation of triazinic ring-containing azo dye (Reactive Red 198) by using immobilized TiO2 photoreactor: bench scale study.
J Hazard Mater. 2006 May 20; 133(1-3):113-8.JH

Abstract

The decolorization and degradation of triazinic ring-containing azo dye by using TiO(2)-immobilized photoreactor is reported. A simple and easy method was used for the immobilization of photocatalyst. Reactive Red 198 (RR 198) was used as model compound. Photocatalytic degradation processes were performed using a 5 L (bench scale) solution containing dye. Batch mode immersion type method was used for the treatment of dye solution. UV-vis, ion chromatography (IC) and chemical oxygen demand (COD) analyses were employed to evaluate the results of the photocatalytic degradation of RR 198. Dye solution was completely decolorized in relatively short time (35 min) after UV irradiation in combination with hydrogen peroxide. The results verified that all of the dye molecules were destructed. Kinetics analysis indicates that the dye photocatalytic decolorization rates followed first order model (R(2) = 0.99). Ion chromatography analysis was used to investigate the formation and destruction of aliphatic carboxylic acids and formation of inorganic anions during the process. Formate and oxalate anions were detected as main aliphatic carboxylic intermediates, which were further oxidized slowly to CO(2). UV/TiO(2)/H(2)O(2) process proved to be capable of successful decolorization and degradation of the RR 198.

Authors+Show Affiliations

Environmental Science and Engineering Department, Iran Color Research Center, Tehran. nm_mahmoodi@yahoo.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16298047

Citation

Mahmoodi, Niyaz Mohammad, et al. "Photocatalytic Degradation of Triazinic Ring-containing Azo Dye (Reactive Red 198) By Using Immobilized TiO2 Photoreactor: Bench Scale Study." Journal of Hazardous Materials, vol. 133, no. 1-3, 2006, pp. 113-8.
Mahmoodi NM, Arami M, Limaee NY. Photocatalytic degradation of triazinic ring-containing azo dye (Reactive Red 198) by using immobilized TiO2 photoreactor: bench scale study. J Hazard Mater. 2006;133(1-3):113-8.
Mahmoodi, N. M., Arami, M., & Limaee, N. Y. (2006). Photocatalytic degradation of triazinic ring-containing azo dye (Reactive Red 198) by using immobilized TiO2 photoreactor: bench scale study. Journal of Hazardous Materials, 133(1-3), 113-8.
Mahmoodi NM, Arami M, Limaee NY. Photocatalytic Degradation of Triazinic Ring-containing Azo Dye (Reactive Red 198) By Using Immobilized TiO2 Photoreactor: Bench Scale Study. J Hazard Mater. 2006 May 20;133(1-3):113-8. PubMed PMID: 16298047.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photocatalytic degradation of triazinic ring-containing azo dye (Reactive Red 198) by using immobilized TiO2 photoreactor: bench scale study. AU - Mahmoodi,Niyaz Mohammad, AU - Arami,Mokhtar, AU - Limaee,Nargess Yousefi, Y1 - 2005/11/17/ PY - 2005/06/28/received PY - 2005/08/30/revised PY - 2005/09/29/accepted PY - 2005/11/22/pubmed PY - 2006/11/3/medline PY - 2005/11/22/entrez SP - 113 EP - 8 JF - Journal of hazardous materials JO - J Hazard Mater VL - 133 IS - 1-3 N2 - The decolorization and degradation of triazinic ring-containing azo dye by using TiO(2)-immobilized photoreactor is reported. A simple and easy method was used for the immobilization of photocatalyst. Reactive Red 198 (RR 198) was used as model compound. Photocatalytic degradation processes were performed using a 5 L (bench scale) solution containing dye. Batch mode immersion type method was used for the treatment of dye solution. UV-vis, ion chromatography (IC) and chemical oxygen demand (COD) analyses were employed to evaluate the results of the photocatalytic degradation of RR 198. Dye solution was completely decolorized in relatively short time (35 min) after UV irradiation in combination with hydrogen peroxide. The results verified that all of the dye molecules were destructed. Kinetics analysis indicates that the dye photocatalytic decolorization rates followed first order model (R(2) = 0.99). Ion chromatography analysis was used to investigate the formation and destruction of aliphatic carboxylic acids and formation of inorganic anions during the process. Formate and oxalate anions were detected as main aliphatic carboxylic intermediates, which were further oxidized slowly to CO(2). UV/TiO(2)/H(2)O(2) process proved to be capable of successful decolorization and degradation of the RR 198. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/16298047/Photocatalytic_degradation_of_triazinic_ring_containing_azo_dye__Reactive_Red_198__by_using_immobilized_TiO2_photoreactor:_bench_scale_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(05)00626-6 DB - PRIME DP - Unbound Medicine ER -