Electrooxidation and inhibition of the antibacterial activity of oxytetracycline hydrochloride using a RuO2 electrode

Rossi, Alexandre M.; Alves, Valéria Almeida; Silva, Luís Antônio da; Oliveira, Marco Aurélio de; Assis, D. O. S.; Santos, F. A.; Miranda, Roqueline Rodrigues Silva de

doi:10.1007/s10800-008-9676-2

Cited by 38 publications

(16 citation statements)

References 41 publications

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“…In a previous study Malpass et al (2006) demonstrated a dependency of atrazine electrochemical oxidation on the presence of FAC. Moreover, the pH will influence the active surface sites of MMO anodes as well as their redox properties, accelerating the direct electron transfer reactions (Rossi et al, 2009). On the other hand, only around 30e40% of 2,4-D, triclopyr and iopromide removal was observed under these conditions, while DEET could not be oxidized.…”

Section: à2mentioning

confidence: 99%

Electrochemical oxidation of trace organic contaminants in reverse osmosis concentrate using RuO2/IrO2-coated titanium anodes

et al. 2011

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), respectively. Compounds that were more persistent during continuous oxidation were characterized by the presence of electrophilic groups on the aromatic ring (e.g. triclopyr) or by the absence of stronger nucleophilic substituents (e.g. ibuprofen).These pollutants were oxidized when applying higher specific electrical charge in batch mode (i.e. 1.45 kA h m À3 ROC). However, baseline toxicity as determined by Vibrio fischeri bioluminescence inhibition tests (Microtox) was increasing with higher applied charge during batch and continuous oxidation, indicating the formation of toxic oxidation products, possibly chlorinated and brominated organic compounds. ª 2010 Elsevier Ltd. All rights reserved.* Corresponding author. Tel.: þ61 7 3346 3234; fax: þ61 7 3365 4726. E-mail address: j.radjenovic@awmc.uq.edu.au (J. Radjenovic).A v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / w a t r e s w a t e r r e s e a r c h 4 5 ( 2 0 1 1 ) 1 5 7 9 e1 5 8 6

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Section: à2mentioning

confidence: 99%

Electrochemical oxidation of trace organic contaminants in reverse osmosis concentrate using RuO2/IrO2-coated titanium anodes

et al. 2011

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“…This behavior might be due to obstruction of the active sites in the DSA® surface for the oxygen and chlorine evolution reactions. Rossi et al [36] reported similar behavior for cyclic voltammetric analysis of the oxytetracycline hydrochloride (OTCH) in buffered solution using a RuO 2 electrode. For the authors, this behavior suggest the adsorption of organic films formed by dimmers/polymers or intermediate products from OTCH, which obstruct the active surface sites in the oxide electrode.…”

Section: Resultsmentioning

confidence: 85%

Electrochemical degradation of tetracycline in artificial urine medium

Parra

Gul

Aquino

et al. 2015

J Solid State Electrochem

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The electrochemical degradation of tetracycline hydrochloride (TeC) was comparatively investigated in artificial urine and chloride-containing media using a one-compartment filter-press flow cell composed of a Ti/Ru 0.3 Ti 0.7 O 2 dimensionally stable anode. The effect of the current density (10-40 mA cm −2 ) on the removal levels attained for TeC and total organic carbon (TOC) (in both media), as well as for urea and creatinine in artificial urine medium, was assessed. The TeC removal rate in the artificial urine medium was much lower than in chloride-containing medium, probably due to the higher consumption of the electrogenerated active chlorine species by the urea and creatinine in the artificial urine medium. Moreover, the obtained removal levels for the urea and creatinine were negligible at current densities lower than 30 mA cm −2 . As TOC abatement was also very small, it is possible that TeC oxidation leads to intermediate compounds. Thus, if current densities less than 20 mA cm −2 are applied, TeC can be selectively removed.

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“…With a growth of population, intensive agriculture and industrialization, a very important role today is played by clean water recovery processes from wastewater for reuse by elimination of antibiotics from terrestrial and aqueous resources. Several studies on degradation of tetracycline, using different technologies were conducted: using activated sludge processes [9], TiO 2 nanopore arrays electrode [10], TiO 2 and ZnO aqueous suspensions were also used in the photocatalytic oxidation of tetracycline, under simulated solar light [11], photocatalysis of TC with C-N-S tridoped TiO 2 material [12], electron pulse radiolysis [14][15][16][17], using Pt plates as anode [14], with Ti/RuO 2 anode [15]. In this study, the electrochemical reactions followed pseudo-first order kinetics.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Degradation of Pharmaceutical Compounds as Tetracycline in Aqueous Solution with BDD Electrode

Brinzila

Ciríaco

Lopes

et al. 2013

AEF

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Abstract. Antibiotics named tetracycline (TC) are the most popular group of pharmaceutical compounds used in therapeutic purpose in human and veterinary medicine and in aquaculture, due to their characteristics as broad spectrum antibiotic. The tetracyclines are a group of natural and semisynthetic products that are bacteriostatic agents with activity against a wide variety of organisms, but of limited use today because of acquired resistance. Even at low concentrations, tetracycline and its metabolites may have a negative influence on the environment. Tetracycline is weakly metabolized or absorbed into the body, some of the ingested antibiotic being eliminated through urine and feces directly into the environment as most of the primarily unchanged form or secondary compounds. Nowadays tetracycline residues can be detected in surface water that was discharged from municipal wastewater treatment plants and agricultural drained. In this study, the degradation of tetracycline and the influence of experimental parameters (initial pH, initial concentration, different flow velocity (mL/s), solution temperature ( o C), current intensity (mA)) on electrochemical degradation with BDD electrode were evaluated. The following parameters were analyzed for the samples collected during the electrochemical assays in electrochemical cell with stirrier and BDD/stainless steel electrodes: Chemical oxygen demand (COD), total organic carbon, nitrogen (total Kjeldhal, organic and inorganic), HPLC and UV-Visible absorption spectrophotometry.

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Electrooxidation and inhibition of the antibacterial activity of oxytetracycline hydrochloride using a RuO2 electrode

Cited by 38 publications

References 41 publications

Electrochemical oxidation of trace organic contaminants in reverse osmosis concentrate using RuO2/IrO2-coated titanium anodes

Electrochemical oxidation of trace organic contaminants in reverse osmosis concentrate using RuO2/IrO2-coated titanium anodes

Electrochemical degradation of tetracycline in artificial urine medium

Electrochemical Degradation of Pharmaceutical Compounds as Tetracycline in Aqueous Solution with BDD Electrode

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