Amoxicillin photodegradation by nanocrystalline TiO2

Radosavljević, K D.; Golubović, A.; Radišić, Marina; Mladenović, Aleksandar; Mijin, Dušan Ž.; Petrović, Slobodan

doi:10.2298/ciceq160122030r

Cited by 22 publications

(11 citation statements)

References 34 publications

(50 reference statements)

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“…Therefore, the WO 3 surface is negatively charged above a pH of 1.9. On the other hand, ionic AMO species are positively charged at acidic pH and negatively charged at alkaline pH 23,56,57 . At an acidic pH, AMO and WO 3 have opposing charges, thus the electrostatic attraction between the AMO molecules and the catalyst surface increases the absorption rate of AMO onto the WO 3 surface, leading to an increase in degradation efficiency and the rate constants.…”

Section: Resultsmentioning

confidence: 99%

Tungsten Trioxide (WO3)-assisted Photocatalytic Degradation of Amoxicillin by Simulated Solar Irradiation

Nguyen

Nam

Son

et al. 2019

Sci Rep

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This study investigates the photocatalytic degradation of amoxicillin (AMO) by simulated solar irradiation using WO 3 as a catalyst. A three-factor-three-level Box-Behnken design (BBD) consisting of 30 experimental runs is employed with three independent variables: initial AMO concentration, catalyst dosage, and pH. The experimental results are analyzed in terms of AMO degradation and mineralization, the latter of which is measured using dissolved organic carbon (DOC). The results show that the photocatalytic degradation of AMO follows pseudo-first-order kinetics. AMO degradation efficiency and the pseudo-first-order rate constants decrease with increasing initial AMO concentration and pH and increase with increasing catalyst dosage. Though AMO degradation is almost fully complete under the experimental conditions, DOC removal is much lower; the highest DOC removal rate is 35.82% after 180 min. Using these experimental results, second-order polynomial response surface models for AMO and DOC removal are constructed. In the AMO removal model, the first-order terms are the most significant contributors to the prediction, followed by the quadratic and interaction terms. Initial AMO concentration and pH have a significant negative impact on the photocatalytic degradation of AMO, while catalyst dosage has a significant positive impact. In contrast, in the DOC removal model, the quadratic terms make the most significant contribution to the prediction and the first-order terms the least. The optimal conditions for the photocatalytic degradation of AMO are found to be an initial AMO concentration of 1.0 μM, a catalyst dosage of 0.104 g/L, and a pH of 4, under which almost complete removal of AMO is achieved (99.99%).

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Section: Resultsmentioning

confidence: 99%

Tungsten Trioxide (WO3)-assisted Photocatalytic Degradation of Amoxicillin by Simulated Solar Irradiation

Nguyen

Nam

Son

et al. 2019

Sci Rep

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“…The magnetic measurements showed the cobalt ion in its greenish blue complex to be paramagnetic with (d 7 )configuration in distorted tetrahedral environment (15),in infrared region the( 1 ) is found as a weak band at (3451)cm -1 due to transition 4 A 2 → 4 T 2 the ( 3 ) was calculated as the average to three bands and assigned to the transition 4 A 2 → 4 T 1 (p) at about (16977) cm -1 ,while the ( 2 ) was calculated by reference to T.S.D for d 7 configuration (16,17) to the transition 4 A 2 → 4 T 2 (f). The Racahparameter B -, nephelauxetic factor β and the value of (10 Dq) were also estimated as describe in table(3).…”

Section: Co-complexmentioning

confidence: 99%

“…The adjustments of acidic (pH 2and 4) and alkaline medium (pH 6and 10) were made using diluted HCl or NaOH respectively as shown in Fig (9).The results show complex and TiO 2 are both positively charged in more acidic conditions [ < 4]. These should hinder the adsorption of complex on TiO 2 surface and slow the reaction (7).In alkaline medium the charge of complex and TiO 2 is neutralized no attraction forces between the catalyst and complex.…”

Section: Effect Of Phmentioning

confidence: 99%

Synthesis, Spectroscopic Characterization of Cobalt ComplexfromC16H19N3O3S and photodegradation using prepared Nano TiO2catalyst

Journal¹

2018

Baghdad Sci.J

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Coblatcomplex has been prepared by reaction between C16H19N3O3S (L) as ligand and metal salt (II). The prepared complex were characterized by infrared spectra, electromic spectra, magnetic susceptibility, molar conductivity measurement and metal analysis by atomic absorption and (C.H.N) analysis. From these studies tetrahedral geometry structure for the complex was suggested. The photodegredation of complex were study using photoreaction cell and preparednanoTiO2 catalyst in different conditions (concentration, temperatures, pH).The results show that the recation is of a first order with activation energy equal to (6.6512 kJ /mol).

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“…Tais compostos são principalmente lançados ao ambiente através de excreções, chegando às Estações de HORDERN, 2015). A AMX um antibiótico semi-sintético, ativo contra um amplo espectro de bactérias gram-positivas e alguns organismos gram-negativos e pertencente à classe das penicilinas, caracterizada pela presença do anel β-lactam (RADOSAVLJEVIĆ et al, 2017). A AMX é empregada no tratamento e na prevenção de infecções bacterianas dos tratos respiratório, gastrointestinal e urinário e doenças dermatológicas devido a suas…”

Section: Introductionunclassified

Análise Da Incorporação De Lama Abrasiva Proveniente Do Corte De Granito Na Produção De Cerâmica Vermelha

Silva¹,

Santos²,

Pestana³

et al. 2021

Desenvolvimento E Transferência De Tecnologia Na Engenharia Química 2

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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Amoxicillin photodegradation by nanocrystalline TiO2

Cited by 22 publications

References 34 publications

Tungsten Trioxide (WO3)-assisted Photocatalytic Degradation of Amoxicillin by Simulated Solar Irradiation

Tungsten Trioxide (WO3)-assisted Photocatalytic Degradation of Amoxicillin by Simulated Solar Irradiation

Synthesis, Spectroscopic Characterization of Cobalt ComplexfromC16H19N3O3S and photodegradation using prepared Nano TiO2catalyst

Análise Da Incorporação De Lama Abrasiva Proveniente Do Corte De Granito Na Produção De Cerâmica Vermelha

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