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Cho, Jaeweon
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Sonodegradation of amitriptyline and ibuprofen in the presence of Ti3C2Tx MXene

Author(s)
Jeon, MinjungJun, Byung-MoonKim, SewoonCho, JaeweonPark, Chang MinChoong, Choe EarnJang, MinYoon, Yeomin
Issued Date
2021-11
DOI
10.1016/j.hazl.2021.100028
URI
https://scholarworks.unist.ac.kr/handle/201301/58696
Citation
Journal of Hazardous Materials Letters, v.2, pp.100028
Abstract
This study, which investigated the sonodegradation of selected pharmaceutical active compounds (PhACs) (amitriptyline (AMT) and ibuprofen (IBP)) with MXene, was carried out in an aqueous solution. To investigate the practicality of the degradation process, the experiments were conducted in various water quality conditions, including pH, temperature, natural organic matter, and ionic strength. Based on the experimental results, the produced hydrogen peroxide, which could be a representative of the produced OH radicals, was a vital factor that affected the degradation performance of both PhACs. To confirm the importance of OH radicals, the effect of a OH radical promoter (H2O2) and scavenger (t-BuOH) was also studied. In addition, the synergism between ultrasonication (US) and MXene was evaluated with the rate constants of US only, MXene only, and a US/MXene combined system. Mineralization of the PhACs was also investigated, and removal of AMT was higher than that of IBP, which could be attributed to the physicochemical properties of the compounds and enhanced adsorption by the well-dispersed MXene. Overall, utilization of MXene by means of ultrasonication could enhance the removal performance of PhACs in water.
Publisher
Elsevier
ISSN
2666-9110
Keyword (Author)
AdsorptionPharmaceuticalsSonodegradationTi3C2TX MXeneWater treatment

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