Sonolysis of ciprofloxacin in aqueous solution: influence of operational parameters

Ultrasonics Sonochemistry
Evelien De BelJo Dewulf

Abstract

Ultrasonic irradiation is a promising technique for the degradation of persistent organic molecules such as pharmaceuticals in wastewater. This paper focuses on the sonolytic degradation of ciprofloxacin (CIP), a fluoroquinolone antibiotic. During a first experiment at 25°C and 544 kHz, the degradation of a 15 mg L(-1) CIP-solution showed a pseudo-first order degradation constant k(1) equal to 0.0067 ± 0.0001 min(-1) (n=3). Experiments with the addition of t-butanol as a radical scavenger showed that reaction with *OH radicals is the main degradation route for ciprofloxacin. Since the production of *OH radicals was the highest at 544 kHz, this was also the most favorable frequency for CIP degradation in comparison with 801 (k(1)=0.0055 min(-1)) and 1081 kHz (k(1)=0.0018 min(-1)). The degradation constant is also strongly dependent on the temperature of the bulk solution. The degradation constant increased significantly with increasing temperature from 0.0055 min(-1) at 15°C to 0.0105 min(-1) at 45°C. According to the Arrhenius law, the apparent activation energy was determined to be 17.5 kJ mol(-1). This suggests that the degradation of CIP is diffusion controlled, as is the case for most radical reactions. A Langmuir-type hete...Continue Reading

References

May 7, 1998·Chemosphere·B Halling-SørensenS E Jørgensen
Jan 5, 2002·Water Research·I K KimP C Chiu
May 3, 2003·Ultrasonics Sonochemistry·Shinobu KodaHideto Mitome
Oct 20, 2004·Water Research·Mukesh GoelMadhumita Bhowmick Ray
Oct 28, 2006·Ultrasonics Sonochemistry·Zhiqiao HeJianmeng Chen
Mar 23, 1990·Science·K S Suslick
Sep 19, 2007·Environmental Science & Technology·Hongxiang FuRichard Constable
Apr 30, 2008·Ultrasonics Sonochemistry·Mohammad A BehnajadyBehrouz Vahid
May 13, 2008·Ultrasonics Sonochemistry·Oualid Hamdaoui, Emmanuel Naffrechoux
Jun 3, 2008·Journal of Hazardous Materials·Bavo De WitteHerman Van Langenhove
Aug 6, 2008·Environmental Science & Technology·Bavo DeWitteHerman Van Langenhove
Oct 1, 2008·Water Science and Technology : a Journal of the International Association on Water Pollution Research·C von Sonntag
Jan 9, 2009·Ultrasonics Sonochemistry·Quesada-Peñate IsariebelDelmas Henri

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Citations

Mar 28, 2013·Environmental Technology·Senthilnathan Nachiappan, Karuppan Muthukumar
Jul 9, 2013·Ultrasonics Sonochemistry·Ruiyang XiaoLinda K Weavers
Jan 10, 2019·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Katia González LabradaUlises Javier Jáuregui-Haza
Jan 31, 2018·Environmental Science and Pollution Research International·Lina Patricia VegaGustavo A Peñuela
May 12, 2021·Ultrasonics Sonochemistry·Pengyun LiuGiancarlo Cravotto

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