Photocatalytic Degradation of Ibuprofen Using TiO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; and Ecotoxicological Assessment of Degradation Intermediates against &amp;lt;i&amp;gt;Daphnia similis&amp;lt;/i&amp;gt;

Braz, Farley S.; Silva, Milady Renata Apolinário da; Silva, Flávio S.; Andrade, Sônia Gumes; Fonseca, Ana Lúcia; Kondo, Márcia Matiko

doi:10.4236/jep.2014.57063

Cited by 30 publications

(17 citation statements)

References 30 publications

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“…Among these pollutants, the Emerging Contaminants (EC) have been attracting a lot of attention from the scientific community. They are defined as any chemical compound present in a variety of commercial products, such as personal care, agrochemical, medicines for human and veterinary uses, food packages or any microorganisms found in environmental matrices that are not monitored nor regulated; however, pose potential risk to human health and environment safety [5][6][7][8][9][10] . A variety of EC are known as Endocrine Disruptors Compounds (EDC).…”

Section: Introductionmentioning

confidence: 99%

Analytical procedures for the determination of estrogen compounds in a surface water reservoir in Southeast Brazil

et al. 2021

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In this study, an analytical methodology was validated to determine and quantify four estrogen hormones using high-performance liquid chromatography (HPLC) with detections by diode array detector (DAD) and by fluorescence detector (FLD). For validation of the method, the following parameters were evaluated: linearity, selectivity, precision, accuracy, limit of detection (LOD), limit of quantification (LOQ) and robustness. Environmental samples were preconcentrated using solid phase extractions and for that, an experimental design was planned to determine the best recovery conditions by varying cartridge types, flow of eluent, pH of the samples, and eluting solvent. Five surface water sampling campaigns were carried out in five different sites of Furnas Reservoir over the months of December 2015 and May 2016. Sample point 1 was located near the sewage treatment plant of the city of Alfenas - MG, while sample point 5 was the most distant from this location. All estrogens, except for E1, were found in all water samples of at least one of the sampling sites. The concentrations of E3, E2 and EE2 ranged from 11-366, 63-422 and 75-9998 ng L-1, respectively. These results are consistent with several studies published in the scientific literature.

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Section: Introductionmentioning

confidence: 99%

Analytical procedures for the determination of estrogen compounds in a surface water reservoir in Southeast Brazil

et al. 2021

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“…AOPs have proved to be excellent alternative treatment methods for the destruction of highly persistent organic pollutants including pharmaceutical pollutants and their possible intermediate products (Shetty, Chavan, Kulkrani, & Kamble, 2016), and complete mineralization of toxic chemicals is the end result in most cases (Rajamananicham & Shanthi, 2016). Ultraviolet-based or visible light-based photocatalytic degradation of different aqueous solution of drugs and other persistent chemicals has been reported by researchers (Ahmed, Rasul, Brown, & Hasib, 2011;Braz, Silva, Silva, & Andrade, 2014;Jallouli, Psatrana-Martinez, Reibero, & Moreira, 2018;Pratiwi, Afifah, & Saleh, 2017;Rastkari, Eslami, Nasseri, Piroti, & Asadi, 2017). In photocatalytic-based advanced oxidation process, degradation of organic pollutants takes place in the presence of semiconductor photocatalysts (e.g., TiO 2 , ZnO etc.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of ibuprofen in water using TiO₂ and ZnO under artificial UV and solar irradiation

Tanveer

Guyer²,

Abbas

2019

Water Environment Research

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The degradation of anti‐inflammatory and antipyretic drug (Ibuprofen; IBP) has been described in this study by using photocatalytic‐based advanced oxidation processes. The catalysts (TiO2 and ZnO) were activated by irradiation of artificial UV lamp and solar rays for the generation of highly oxidizing species which resulted in the degradation of IBP to intermediates and finally to carbon dioxide and water. In solar reactor, quartz and borosilicate tubes were installed for absorption of required ultraviolet rays and curved chrome plates were used to reflect and concentrate rays on the tubes containing feed mixture. The liquid chromatography, Total organic carbon (TOC), and Chemical oxygen demand (COD) tests were employed to determine the degradation rates and demineralization of solution samples. At catalyst dosing of 1–1.5 g/L, TiO2‐based experiments showed high degradation rate under acidic conditions. Similarly, for ZnO catalyst, 1 g/L dozing rate was found to be effective under neutral conditions (pH = 7.0). UV lamp‐based photocatalysis had higher degradation rate as compared to that of solar reactor. Moreover, better absorption of solar rays by quartz tubes resulted in higher degradation than that in borosilicate tubes. For UV lamp photocatalysis, the TOC and COD reduction was higher. With improved catalyst doping and better solar reactor design, solar‐based IBP degradation could be more promising than UV‐based catalysis. Practitioner points TiO2 and ZnO were employed to generate oxidizing agents for comparative photocatalytic degradation. Degradation rate of Ibuprofen with TiO2 was much higher compared to ZnO. Quartz material was found more effective as radiation absorbing material than borosilicate glass for solar photo catalysis. Influence of catalyst loading (TiO2 and ZnO) and pH conditions on degradation rate and mineralization of IBP was examined. IBP is a carcinogenic and endocrine disrupting drug so its degradation in water can protect ecological and human life.

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“…Removal of these and similar pollutants in low concentrations from water supplies is a vital challenge to maintaining high public health standards. The degradation of IBP in aqueous solutions has been studied under a wide variety of photolytic [7,[122][123][124][125][126][127][128] and photocatalytic [129][130][131] conditions, with the general conclusion that complete mineralization is not achieved, and that the photoproducts have similar toxicity to IBP. This establishes a clear need to develop advanced photocatalytic materials capable of complete removal of IBP from aqueous solutions.…”

Section: Investigation Of Biocl Photocatalytic Degradation Mechanism mentioning

confidence: 99%

Application of BiOX Photocatalysts in Remediation of Persistent Organic Pollutants

2018

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Bismuth oxyhalides have recently gained attention for their promise as photocatalysts. Due to their layered structure, these materials present fascinating and highly desirable physicochemical properties including visible light photocatalytic capability and improved charge separation. While bismuth oxyhalides have been rigorously evaluated for the photocatalytic degradation of dyes and many synthesis strategies have been employed to enhance this property, relatively little work has been done to test them against pharmaceuticals and pesticides. These persistent organic pollutants are identified as emerging concerns by the EPA and effective strategies must be developed to combat them. Here, we review recent work directed at characterizing the nature of the interactions between bismuth oxyhalides and persistent organic pollutants using techniques including LC-MS/MS for the determination of photocatalytic degradation intermediates and radical scavenging to determine active species during photocatalytic degradation. The reported investigations indicate that the high activity of bismuth oxyhalides for the breakdown of persistent organic pollutants from water can be largely attributed to the strong oxidizing power of electron holes in the valence band. Unlike conventional catalysts like TiO2, these catalysts can also function in ambient solar conditions. This suggests a much wider potential use for these materials as green catalysts for industrial photocatalytic transformation, particularly in flow chemistry applications.

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Photocatalytic Degradation of Ibuprofen Using TiO<sub>2</sub> and Ecotoxicological Assessment of Degradation Intermediates against <i>Daphnia similis</i>

Cited by 30 publications

References 30 publications

Analytical procedures for the determination of estrogen compounds in a surface water reservoir in Southeast Brazil

Analytical procedures for the determination of estrogen compounds in a surface water reservoir in Southeast Brazil

Photocatalytic degradation of ibuprofen in water using TiO₂ and ZnO under artificial UV and solar irradiation

Application of BiOX Photocatalysts in Remediation of Persistent Organic Pollutants

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Photocatalytic Degradation of Ibuprofen Using TiO&lt;sub&gt;2&lt;/sub&gt; and Ecotoxicological Assessment of Degradation Intermediates against &lt;i&gt;Daphnia similis&lt;/i&gt;

Cited by 30 publications

References 30 publications

Analytical procedures for the determination of estrogen compounds in a surface water reservoir in Southeast Brazil

Analytical procedures for the determination of estrogen compounds in a surface water reservoir in Southeast Brazil

Photocatalytic degradation of ibuprofen in water using TiO2 and ZnO under artificial UV and solar irradiation

Application of BiOX Photocatalysts in Remediation of Persistent Organic Pollutants

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Photocatalytic Degradation of Ibuprofen Using TiO<sub>2</sub> and Ecotoxicological Assessment of Degradation Intermediates against <i>Daphnia similis</i>

Photocatalytic degradation of ibuprofen in water using TiO₂ and ZnO under artificial UV and solar irradiation