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Degradation of Acid Blue 25 in aqueous media using 1700kHz ultrasonic irradiation: ultrasound/Fe(II) and ultrasound/H(2)O(2) combinations.
Ultrason Sonochem. 2009 Jun; 16(5):593-8.US

Abstract

In this work, the sonolytic degradation of an anthraquinonic dye, C.I. Acid Blue 25 (AB25), in aqueous phase using high frequency ultrasound waves (1700kHz) for an acoustic power of 14W was investigated. The sonochemical efficiency of the reactor was evaluated by potassium iodide dosimeter, Fricke reaction and hydrogen peroxide production yield. The three investigated methods clearly show the production of oxidizing species during sonication and well reflect the sonochemical effects of high frequency ultrasonic irradiation. The effect of operational conditions such as the initial AB25 concentration, solution temperature and pH on the degradation of AB25 was studied. Additionally, the influence of addition of salts on the degradation of dye was examined. The rate of AB25 degradation was dependent on initial dye concentration, pH and temperature. Addition of salts increased the degradation of dye. Experiments conducted using distilled and natural waters demonstrated that the degradation was more efficient in the natural water compared to distilled water. To increase the efficiency of AB25 degradation, experiments combining ultrasound with Fe(II) or H(2)O(2) were conducted. Fe(II) induced the dissociation of ultrasonically produced hydrogen peroxide, leading to additional OH radicals which enhance the degradation of dye. The combination of ultrasound with hydrogen peroxide looks to be a promising option to increase the generation of free radicals. The concentration of hydrogen peroxide plays a crucial role in deciding the extent of enhancement obtained for the combined process. The results of the present work indicate that ultrasound/H(2)O(2) and ultrasound/Fe(II) processes are efficient for the degradation of AB25 in aqueous solutions by high frequency ultrasonic irradiation.

Authors+Show Affiliations

Department of Process Engineering, Faculty of Engineering, University of Annaba, P.O. Box 12, 23000 Annaba, Algeria.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19109046

Citation

Ghodbane, Houria, and Oualid Hamdaoui. "Degradation of Acid Blue 25 in Aqueous Media Using 1700kHz Ultrasonic Irradiation: ultrasound/Fe(II) and ultrasound/H(2)O(2) Combinations." Ultrasonics Sonochemistry, vol. 16, no. 5, 2009, pp. 593-8.
Ghodbane H, Hamdaoui O. Degradation of Acid Blue 25 in aqueous media using 1700kHz ultrasonic irradiation: ultrasound/Fe(II) and ultrasound/H(2)O(2) combinations. Ultrason Sonochem. 2009;16(5):593-8.
Ghodbane, H., & Hamdaoui, O. (2009). Degradation of Acid Blue 25 in aqueous media using 1700kHz ultrasonic irradiation: ultrasound/Fe(II) and ultrasound/H(2)O(2) combinations. Ultrasonics Sonochemistry, 16(5), 593-8. https://doi.org/10.1016/j.ultsonch.2008.11.006
Ghodbane H, Hamdaoui O. Degradation of Acid Blue 25 in Aqueous Media Using 1700kHz Ultrasonic Irradiation: ultrasound/Fe(II) and ultrasound/H(2)O(2) Combinations. Ultrason Sonochem. 2009;16(5):593-8. PubMed PMID: 19109046.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Degradation of Acid Blue 25 in aqueous media using 1700kHz ultrasonic irradiation: ultrasound/Fe(II) and ultrasound/H(2)O(2) combinations. AU - Ghodbane,Houria, AU - Hamdaoui,Oualid, Y1 - 2008/11/27/ PY - 2008/08/07/received PY - 2008/11/11/revised PY - 2008/11/14/accepted PY - 2008/12/26/entrez PY - 2008/12/26/pubmed PY - 2009/7/29/medline SP - 593 EP - 8 JF - Ultrasonics sonochemistry JO - Ultrason Sonochem VL - 16 IS - 5 N2 - In this work, the sonolytic degradation of an anthraquinonic dye, C.I. Acid Blue 25 (AB25), in aqueous phase using high frequency ultrasound waves (1700kHz) for an acoustic power of 14W was investigated. The sonochemical efficiency of the reactor was evaluated by potassium iodide dosimeter, Fricke reaction and hydrogen peroxide production yield. The three investigated methods clearly show the production of oxidizing species during sonication and well reflect the sonochemical effects of high frequency ultrasonic irradiation. The effect of operational conditions such as the initial AB25 concentration, solution temperature and pH on the degradation of AB25 was studied. Additionally, the influence of addition of salts on the degradation of dye was examined. The rate of AB25 degradation was dependent on initial dye concentration, pH and temperature. Addition of salts increased the degradation of dye. Experiments conducted using distilled and natural waters demonstrated that the degradation was more efficient in the natural water compared to distilled water. To increase the efficiency of AB25 degradation, experiments combining ultrasound with Fe(II) or H(2)O(2) were conducted. Fe(II) induced the dissociation of ultrasonically produced hydrogen peroxide, leading to additional OH radicals which enhance the degradation of dye. The combination of ultrasound with hydrogen peroxide looks to be a promising option to increase the generation of free radicals. The concentration of hydrogen peroxide plays a crucial role in deciding the extent of enhancement obtained for the combined process. The results of the present work indicate that ultrasound/H(2)O(2) and ultrasound/Fe(II) processes are efficient for the degradation of AB25 in aqueous solutions by high frequency ultrasonic irradiation. SN - 1873-2828 UR - https://www.unboundmedicine.com/medline/citation/19109046/Degradation_of_Acid_Blue_25_in_aqueous_media_using_1700kHz_ultrasonic_irradiation:_ultrasound/Fe_II__and_ultrasound/H_2_O_2__combinations_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1350-4177(08)00191-0 DB - PRIME DP - Unbound Medicine ER -