Recent developments in the use of metal oxides for photocatalytic degradation of pharmaceutical pollutants in water—a review

Velempini, Tarisai; Prabakaran, E.; Pillay, Kriveshini

doi:10.1016/j.mtchem.2020.100380

Cited by 158 publications

(83 citation statements)

References 279 publications

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“…Fig. 3 [52][53][54][55] However, of the major interest, the photocatalytic applications are hindered by some limitations of metal oxides-based photocatalysts. For example, TiO 2 , known as the most widely studied metal oxide nanostructured photocatalyst for decades, possess low quantum yield as the prompt charge recombination of charge carriers, low surface area, and poor sensitivity under solar irradiation.…”

Section: Semiconductor Metal Oxides: Current Challengesmentioning

confidence: 99%

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

2021

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Section: Semiconductor Metal Oxides: Current Challengesmentioning

confidence: 99%

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

2021

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“…The efficiency of a photocatalyst depends on different aspects, such as solution pH and temperature, photocatalyst-pollutant contact time, photocatalyst dose, and irradiation time [ 69 ]. Metal oxide semiconductors have been used as photocatalysts for the degradation of pharmaceuticals, including antibiotics, either pure [ 61 , 70 ] or doped with other materials [ 71 , 72 , 73 ].…”

Section: Photocatalytic Removal Of Aquaculture Antibiotics From Water: Types Of Photocatalystsmentioning

confidence: 99%

Antibiotics in Aquaculture Wastewater: Is It Feasible to Use a Photodegradation-Based Treatment for Their Removal?

Silva

Louros

Silva

et al. 2021

Toxics

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Aquacultures are a sector facing a huge development: farmers usually applying antibiotics to treat and/or prevent diseases. Consequently, effluents from aquaculture represent a source of antibiotics for receiving waters, where they pose a potential threat due to antimicrobial resistance (AMR) induction. This has recently become a major concern and it is expectable that regulations on antibiotics’ discharge will be established in the near future. Therefore, it is urgent to develop treatments for their removal from wastewater. Among the different possibilities, photodegradation under solar radiation may be a sustainable option. Thus, this review aims at providing a survey on photolysis and photocatalysis in view of their application for the degradation of antibiotics from aquaculture wastewater. Experimental facts, factors affecting antibiotics’ removal and employed photocatalysts were hereby addressed. Moreover, gaps in this research area, as well as future challenges, were identified.

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“…10,11 Among them, a wide range of compounds used for medicinal purposes, including antibiotics, chemotherapeutic drugs, dyes used for histopathological diagnosis, organic solvents and other chemicals of laboratory use, have been photocatalytically decomposed in aqueous media. 12,13 In recent years, some studies have published results on the photocatalytic treatment of simulated or real municipal hospital wastewaters 8 ; however, in these cases, the pharmaceutical compounds thereinmainly drugsare, as expected, in very low concentrations (ppb or lower) as metabolic byproducts in human excretions. 14 The aim of the current study was to investigate for the first time the potential of both photocatalytic processes to mineralize and detoxify real hazardous laboratory medical wastewater of toxic nature and unknown composition.…”

Section: Introductionmentioning

confidence: 97%

Photocatalytic oxidation of simulated and real hazardous medical wastewater: decolorization, mineralization and toxicity evaluation

Tsoumachidou

Berberidou

Kitsiou

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Liquid hazardous medical wastes (LHMW) originating from health-care laboratory services present a global environmental hazard as most sustainable wastewater treatment technologies fail to address this particularly demanding issue. In this study, heterogeneous and homogeneous photocatalytic oxidation of simulated and real LHMW has been performed at bench scale, investigating their potential to decompose and detoxify such effluents.RESULTS: A simulated LHMW of 0.4 g L −1 DOC 0 was photocatalytically treated in the presence of TiO 2 P25. The addition of H 2 O 2 was necessary to achieve mineralization, while the optimal concentration of P25 for this purpose was 1.0 g L −1 . In the case of photo-Fenton, under optimal conditions (0.056 g L −1 Fe 3+ , 3 g L −1 H 2 O 2 , UV-A, pH 3.0) complete mineralization was accomplished in 600 min of illumination, while phytotoxicity was eliminated or significantly reduced, depending on the employed plant species. Photocatalytic processing of real LHMW (400 mg L −

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Recent developments in the use of metal oxides for photocatalytic degradation of pharmaceutical pollutants in water—a review

Cited by 158 publications

References 279 publications

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

Fly ash-, foundry sand-, clay-, and pumice-based metal oxide nanocomposites as green photocatalysts

Antibiotics in Aquaculture Wastewater: Is It Feasible to Use a Photodegradation-Based Treatment for Their Removal?

Photocatalytic oxidation of simulated and real hazardous medical wastewater: decolorization, mineralization and toxicity evaluation

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