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Catalytic wet peroxide oxidation of azo dye (Congo red) using modified Y zeolite as catalyst.
J Hazard Mater. 2009 Jul 15; 166(1):342-7.JH

Abstract

The present study explores the degradation of azo dye (Congo red) by catalytic wet peroxide oxidation using Fe exchanged commercial Y zeolite as a catalyst. The effects of various operating parameters like temperature, initial pH, hydrogen peroxide concentration and catalyst loading on the removal of dye, color and COD from an aqueous solution were studied at atmospheric pressure. The percent removals of dye, color and COD at optimum pH(0) 7, 90 degrees C using 0.6 ml H(2)O(2)/350 ml solution and 1g/l catalyst was 97% (in 4h), 100% (in 45 min) and 58% (in 4h), respectively. The % dye removal has been found to be less in comparison to % color removal at all conditions, e.g. dye removal in 45 min and at above conditions was 82%, whereas the color removal was 100%. The results indicate that the Fe exchanged Y zeolite is a promising catalyst for dye removal. Fe exchanged catalyst is characterized using XRD, SEM/EDAX, surface area analyzer and FTIR. Though the dye, color and COD removals were maximum at pH(0) 2 but as the leaching of Fe from the catalyst was more in acidic pH range, pH(0) 7 was taken as operating pH due to almost comparable removals as of pH(0) 2 and no leaching of Fe ions.

Authors+Show Affiliations

Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19135790

Citation

Kondru, Arun Kumar, et al. "Catalytic Wet Peroxide Oxidation of Azo Dye (Congo Red) Using Modified Y Zeolite as Catalyst." Journal of Hazardous Materials, vol. 166, no. 1, 2009, pp. 342-7.
Kondru AK, Kumar P, Chand S. Catalytic wet peroxide oxidation of azo dye (Congo red) using modified Y zeolite as catalyst. J Hazard Mater. 2009;166(1):342-7.
Kondru, A. K., Kumar, P., & Chand, S. (2009). Catalytic wet peroxide oxidation of azo dye (Congo red) using modified Y zeolite as catalyst. Journal of Hazardous Materials, 166(1), 342-7. https://doi.org/10.1016/j.jhazmat.2008.11.042
Kondru AK, Kumar P, Chand S. Catalytic Wet Peroxide Oxidation of Azo Dye (Congo Red) Using Modified Y Zeolite as Catalyst. J Hazard Mater. 2009 Jul 15;166(1):342-7. PubMed PMID: 19135790.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Catalytic wet peroxide oxidation of azo dye (Congo red) using modified Y zeolite as catalyst. AU - Kondru,Arun Kumar, AU - Kumar,Pradeep, AU - Chand,Shri, Y1 - 2008/11/24/ PY - 2008/07/06/received PY - 2008/11/07/revised PY - 2008/11/11/accepted PY - 2009/1/13/entrez PY - 2009/1/13/pubmed PY - 2009/8/8/medline SP - 342 EP - 7 JF - Journal of hazardous materials JO - J Hazard Mater VL - 166 IS - 1 N2 - The present study explores the degradation of azo dye (Congo red) by catalytic wet peroxide oxidation using Fe exchanged commercial Y zeolite as a catalyst. The effects of various operating parameters like temperature, initial pH, hydrogen peroxide concentration and catalyst loading on the removal of dye, color and COD from an aqueous solution were studied at atmospheric pressure. The percent removals of dye, color and COD at optimum pH(0) 7, 90 degrees C using 0.6 ml H(2)O(2)/350 ml solution and 1g/l catalyst was 97% (in 4h), 100% (in 45 min) and 58% (in 4h), respectively. The % dye removal has been found to be less in comparison to % color removal at all conditions, e.g. dye removal in 45 min and at above conditions was 82%, whereas the color removal was 100%. The results indicate that the Fe exchanged Y zeolite is a promising catalyst for dye removal. Fe exchanged catalyst is characterized using XRD, SEM/EDAX, surface area analyzer and FTIR. Though the dye, color and COD removals were maximum at pH(0) 2 but as the leaching of Fe from the catalyst was more in acidic pH range, pH(0) 7 was taken as operating pH due to almost comparable removals as of pH(0) 2 and no leaching of Fe ions. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19135790/Catalytic_wet_peroxide_oxidation_of_azo_dye__Congo_red__using_modified_Y_zeolite_as_catalyst_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)01697-X DB - PRIME DP - Unbound Medicine ER -