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Influence of operational key parameters on the photocatalytic decolorization of Rhodamine B dye using Fe2+/H2O2/Nb2O5/UV system.
Environ Sci Pollut Res Int. 2014 Apr; 21(7):5121-31.ES

Abstract

The present research deals with the development of a new heterogeneous photocatalysis and Fenton hybrid system for the removal of color from textile dyeing wastewater as Rhodamine B (RhB) solutions by using Fe(2+)/H2O2/Nb2O5 as a photocatalytic system. The application of this photocatalytic system for the decolorization of dye contaminants is not reported in the literature yet. Different parameters like dye concentration, Nb2O5/Fe(2+) catalyst amount, pH, and H2O2 concentration have been studied. The optimum conditions for the decolorization of the dye were initial concentration of 10 mg L(-1) of dye, pH 4, and Nb2O5/Fe(2+) catalyst concentration of 0.5 g L(-1)/50 mg L(-1). The optimum value of H2O2 concentration for the conditions used in this study was 700 mg L(-1). Moreover, the efficiency of the Nb2O5/photo-Fenton hybrid process in comparison to photo-Fenton alone and a dark Fenton process as a control experiment to decolorize the RhB solution has been investigated. The combination of photo-Fenton and Nb2O5 catalysts has been proved to be the most effective for the treatment of such type of wastewaters. The results revealed that the RhB dye was decolorized in a higher percent (78 %) by the Nb2O5/photo-Fenton hybrid process (Fe(2+)/H2O2/Nb2O5/UV) than by the photo-Fenton process alone (37 %) and dark Fenton process (14 %) after 120 min of treatment. Moreover, the Nb2O5 catalyst as a heterogeneous part of the photocatalytic system was demonstrated to have good stability and reusability.

Authors+Show Affiliations

Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24374619

Citation

Hashemzadeh, Fatemeh, et al. "Influence of Operational Key Parameters On the Photocatalytic Decolorization of Rhodamine B Dye Using Fe2+/H2O2/Nb2O5/UV System." Environmental Science and Pollution Research International, vol. 21, no. 7, 2014, pp. 5121-31.
Hashemzadeh F, Rahimi R, Gaffarinejad A. Influence of operational key parameters on the photocatalytic decolorization of Rhodamine B dye using Fe2+/H2O2/Nb2O5/UV system. Environ Sci Pollut Res Int. 2014;21(7):5121-31.
Hashemzadeh, F., Rahimi, R., & Gaffarinejad, A. (2014). Influence of operational key parameters on the photocatalytic decolorization of Rhodamine B dye using Fe2+/H2O2/Nb2O5/UV system. Environmental Science and Pollution Research International, 21(7), 5121-31. https://doi.org/10.1007/s11356-013-2456-5
Hashemzadeh F, Rahimi R, Gaffarinejad A. Influence of Operational Key Parameters On the Photocatalytic Decolorization of Rhodamine B Dye Using Fe2+/H2O2/Nb2O5/UV System. Environ Sci Pollut Res Int. 2014;21(7):5121-31. PubMed PMID: 24374619.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of operational key parameters on the photocatalytic decolorization of Rhodamine B dye using Fe2+/H2O2/Nb2O5/UV system. AU - Hashemzadeh,Fatemeh, AU - Rahimi,Rahmatollah, AU - Gaffarinejad,Ali, Y1 - 2013/12/28/ PY - 2013/09/13/received PY - 2013/12/10/accepted PY - 2013/12/31/entrez PY - 2014/1/1/pubmed PY - 2014/7/6/medline SP - 5121 EP - 31 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 21 IS - 7 N2 - The present research deals with the development of a new heterogeneous photocatalysis and Fenton hybrid system for the removal of color from textile dyeing wastewater as Rhodamine B (RhB) solutions by using Fe(2+)/H2O2/Nb2O5 as a photocatalytic system. The application of this photocatalytic system for the decolorization of dye contaminants is not reported in the literature yet. Different parameters like dye concentration, Nb2O5/Fe(2+) catalyst amount, pH, and H2O2 concentration have been studied. The optimum conditions for the decolorization of the dye were initial concentration of 10 mg L(-1) of dye, pH 4, and Nb2O5/Fe(2+) catalyst concentration of 0.5 g L(-1)/50 mg L(-1). The optimum value of H2O2 concentration for the conditions used in this study was 700 mg L(-1). Moreover, the efficiency of the Nb2O5/photo-Fenton hybrid process in comparison to photo-Fenton alone and a dark Fenton process as a control experiment to decolorize the RhB solution has been investigated. The combination of photo-Fenton and Nb2O5 catalysts has been proved to be the most effective for the treatment of such type of wastewaters. The results revealed that the RhB dye was decolorized in a higher percent (78 %) by the Nb2O5/photo-Fenton hybrid process (Fe(2+)/H2O2/Nb2O5/UV) than by the photo-Fenton process alone (37 %) and dark Fenton process (14 %) after 120 min of treatment. Moreover, the Nb2O5 catalyst as a heterogeneous part of the photocatalytic system was demonstrated to have good stability and reusability. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/24374619/Influence_of_operational_key_parameters_on_the_photocatalytic_decolorization_of_Rhodamine_B_dye_using_Fe2+/H2O2/Nb2O5/UV_system_ L2 - https://dx.doi.org/10.1007/s11356-013-2456-5 DB - PRIME DP - Unbound Medicine ER -