Photo-induced oxidation of ceftriaxone by persulfate in the presence of iron oxides

Kaur, Balpreet; Kuntus, Liina; Tikker, Priit; Kattel, Eneliis; Trapido, Marina; Dulova, Niina

doi:10.1016/j.scitotenv.2019.04.277

Cited by 50 publications

(15 citation statements)

References 40 publications

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“…Sonoelectrochemical catalytic degradation onto a nanocoated electrode led to a drug removal efficiency of 94%, at a current density of 8 mA•cm −2 and an ultrasound frequency of 45 kHz [11]. Optimizing of experimental parameters of photo-induced and sonocatalytic degradation revealed a ceftriaxone removal efficiency ranging between 70% and 95% [12][13][14][15][16]. These methods were also used for ceftriaxone degradation in the presence of carbon nitride (g-C 3 N 4 ) and different composite materials such as Ag-CsPbBr 3 , ZnSe, BiWO 6 [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Ceftriaxone Degradation in the Presence of Sodium Halides Investigated by Electrochemical Methods Assisted by UV-Vis Spectrophotometry

et al. 2021

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The electrochemical stability of ceftriaxone (CFTX), belonging to the third generation of cephalosporin antibiotics, was studied by electrochemical measurements recorded on a platinum electrode (Pt) in aqueous solutions containing sodium halides. The electrochemical behavior of ceftriaxone was investigated by cyclic voltammetry (CV) and constant current density electrolysis assisted by UV-Vis spectrophotometry. Cyclic voltammetry highlighted that the addition of CFTX in sodium halide solutions leads to significant changes in the hysteresis characteristics due to specific interactions with active species from electrolytes, as well as with the platinum electrode surface. After CV, when an exterior electric stimulus in short time (40 s) was applied, the UV-Vis spectra illustrated that CFTX is stable in the presence of F- ions, it is electro(degraded/transformed) in the presence of Cl- and Br- ions and interacts instantly with I- species. Electrolysis at constant current density confirms the results obtained from cyclic voltammetry, showing that (i) in the presence of fluoride ions CFTX gradually decomposes, but not completely, in about 60 min, without identifying a reaction product; (ii) chloride and bromide ions determine the almost complete CFTX electro(degradation/transformation) in 10 and 5 min, respectively, with completion of the electro-transformation reaction after 60 and 30 min, respectively; (iii) instantaneous interactions between CFTX and the iodide ions occurred.

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Section: Introductionmentioning

confidence: 99%

Ceftriaxone Degradation in the Presence of Sodium Halides Investigated by Electrochemical Methods Assisted by UV-Vis Spectrophotometry

et al. 2021

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“…•− ). [4] OH• can decompose organic matter effectively through adding itself to C−C bonds or abstracting H from C−H bonds. The nonselective oxidation property allows OH• to carry out the simultaneous degradation task of various pollutants and decrease the formation of secondary products.…”

Section: Biotemplated Shell Micromotors For Efficient Degradation Of ...mentioning

confidence: 99%

“…[ 3 ] AOPs with the advantage of high mineralization efficiency and rapid oxidation reaction usually involve the generation of hydroxyl radicals (OH·) and sulfate radicals (SO 4 ·− ). [ 4 ] OH· can decompose organic matter effectively through adding itself to C−C bonds or abstracting H from C−H bonds. The nonselective oxidation property allows OH· to carry out the simultaneous degradation task of various pollutants and decrease the formation of secondary products.…”

Section: Introductionmentioning

confidence: 99%

Biotemplated Shell Micromotors for Efficient Degradation of Antibiotics via Enhanced Peroxymonosulfate Activation

Wang

Hong

2022

Adv Materials Inter

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Self‐propelled magnetic MnO2@pollen micromotors have been developed as active heterogeneous catalysts of peroxymonosulfate (PMS) activation for efficient degradation of antibiotics. The MnO2 nanosheets (NSs) and Fe3O4 nanoparticles (NPs) are constructed on hollow pollens with small openings, endowing the natural materials with multifunctional properties. MnO2 NSs can decompose H2O2 to provide propulsion for micromotor movement, and also cooperate with Fe3O4 NPs to activate PMS to produce active free radicals SO4·−. Together with the OH· generated by Fe3O4 NPs and H2O2, the prepared micromotor catalyst can realize the degradation of tetracycline (TC) within several minutes. The self‐propulsion and abundant bubble formation cause effective fluid mixing and intensification of mass transfer, making up the low diffusivity defect of traditional heterogeneous catalysts. Moreover, the magnetic properties lay a foundation for the long‐range magnetic control and reutilization of heterogeneous catalysts, avoiding wastage and secondary contamination. The proposed self‐propelled pollen micromotors provide a highly efficient, economic, and environmentally friendly platform for the degradation of antibiotics.

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“…Secondly, the development of chemoselective C−H chemistry can avoid the use of C−C backbone which may result in undesired surface degradation . So far, a number of effective technologies have been developed for C−H transformations during the past decades, including organometallic and enzymes catalysis, γ‐ray initiated, and UV‐induced reactions. However, many of them often lead to an uncontrolled dissociation of chemical bonds other than C−H and result in undesired physical or chemical changes.…”

Section: Introductionmentioning

confidence: 99%

Surface Engineering of Organic Polymers by Photo‐induced Free Radical Coupling with p‐Dimethylaminophenyl Group as A Synthesis Block

et al. 2020

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This contribution presents a versatile strategy to transfer unactivated surface C–H bonds of polymeric substrates to C–R–F groups (R stands for a spacer and F stands for functional group) by UV light‐assisted surface free radical coupling. With p‐dimethylaminophenyl radical as a building block, various reactive groups, such as –CHO, –SH, –B(O)OH, –CN and –SO3−, are successfully grafted onto typical commercial polymer substrates including biaxially oriented polypropylene, polyethylene phthalate, ethylene tetrafluoroethylene copolymer and dimethyl silicone rubber. Fluorencence microscope images, X‐ray photoelectron spectroscopy, UV‐vis and fluorescence spectra support that the above functional groups are covalently bonded to the polymer substrates. The concentration of the reactive groups immobilized on the different substrates is in the order of 10−8 to 10−7 mmol mm−2 determined by UV‐vis spectrometry. In addition, as a proof‐of‐concept, the introduced functional groups are demonstrated by their special reactions, for example, –CHO reacting with –NH2 to synthesize Schiff base, –SH to detect silver ions, and the complexes of –C=N and Zn2+ to degrade Rhodamine B. The results indicate that one can fabricate an integrated molecular library on the surface of polymeric substrates at the molecular level by selecting the building blocks.

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Photo-induced oxidation of ceftriaxone by persulfate in the presence of iron oxides

Cited by 50 publications

References 40 publications

Ceftriaxone Degradation in the Presence of Sodium Halides Investigated by Electrochemical Methods Assisted by UV-Vis Spectrophotometry

Ceftriaxone Degradation in the Presence of Sodium Halides Investigated by Electrochemical Methods Assisted by UV-Vis Spectrophotometry

Biotemplated Shell Micromotors for Efficient Degradation of Antibiotics via Enhanced Peroxymonosulfate Activation

Surface Engineering of Organic Polymers by Photo‐induced Free Radical Coupling with p‐Dimethylaminophenyl Group as A Synthesis Block

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