Photocatalytic materials immobilized on recycled supports and their role in the degradation of water contaminants: A timely review

Valadez-Renteria, E.; Oliva, J.; Rodríguez-González, Vicente

doi:10.1016/j.scitotenv.2021.150820

Cited by 22 publications

(6 citation statements)

References 46 publications

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“…After 120 min of treatment over TiO 2 and CuCe-Ferrite/TiO 2 NPs, COD decrease was detected by increasing the concentration of RR250 from 10 to 100 ppm. Because increase in concentration of RR250 dye causes incorporation of additional RR250 dye molecules onto TiO 2 and CuCe-Ferrite/TiO 2 NPs, those observations were linked to an effective area reduction or a decrease in light penetration [37,38]. The photocatalytic degradation results are confirmed by the COD data [11].…”

Section: Characterizationmentioning

confidence: 83%

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

et al. 2022

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In this work, a magnetically separated photocatalyst with great efficiency CuCe-Ferrite/TiO2 composite was prepared and characterized by X-ray diffraction (XRD), UV–Vis spectrophotometry, Fourier transformer infra-red spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM). Single-phase cubic spinel was formed by calcining the prepared sample at a temperature of 550 °C, according to the results. Different concentrations of reactive red 250 (RR250) dye photodegradation was evaluated using different doses of CuCe-ferrite/ TiO2 and TiO2 NPs. Higher efficiency of RR250 photodegradation up to 100% was obtained using CuCe-ferrite/ TiO2. The photodegradation efficiency was confirmed using chemical oxygen demand (COD) test of both treated and untreated samples. The oxidation process was mostly mediated by photogenerated .O2− according to scavenger test results. The catalyst possess higher photodegradation efficiency even after regeneration for ten times. Graphical Abstract

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Section: Characterizationmentioning

confidence: 83%

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

et al. 2022

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“…Many researchers investigated immobilizing the catalyst on a support material to improve the ability of recollection the catalyst after the reaction or enhancement of photocatalytic activity by higher adsorption capacity supports (Chijioke-Okere et al 2021;Lima et al 2022;Matiazzo et al 2022). So far, attempts to immobilize these composite films on supports, including glass beads, glass, and stainless steel, have been developed to degrade organic contaminants by photocatalysis (Lu and Zhang 2022;Valadez-Renteria et al 2022;Zhou et al 2022). However, the activity for the decomposition of organics by other sorbents as a supporter of photocatalyst still remains unreported.…”

Section: Catalyst Immobilizationmentioning

confidence: 99%

Solar photo-oxidation of recalcitrant industrial wastewater: a review

et al. 2022

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Conventional methods to clean wastewater actually lead to incomplete treatments, calling for advanced technologies to degrade recalcitrant pollutants. Herein we review solar photo-oxidation to degrade the recalcitrant contaminants in industrial wastewater, with focus on photocatalysts, reactor design and the photo-Fenton process. We discuss limitations due to low visible-light absorption, catalyst collection and reusability, and production of toxic by-products. Photodegradation of refractory organics by solar light is controlled by pH, photocatalyst composition and bandgap, pollutant properties and concentration, irradiation type and intensity, catalyst loading, and the water matrix.

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“…In terms of supporting materials, the most commonly used include glass, stainless steel, plastics, textiles, alumina, silica, and titania [ 64 ]. Recent works in this area are focused on the generation of low-cost nanocatalysts using wasted and recyclable materials as carriers for applications in the removal of different target contaminants, such as dyes, pharmaceutical compounds, and heavy metals [ 65 ]. Materials such as polyethylene terephthalic (PET), polystyrene (PS), disposal textile fabrics, newspapers, aluminum soda cans, rubber, waste electronic and electric components and used batteries have been employed as supports for immobilizing catalysts [ 65 ].…”

Section: Immobilized Nms For the Removal Of Recalcitrant Contaminantsmentioning

confidence: 99%

Immobilized Nanomaterials for Environmental Applications

Cervantes

Ramírez-Montoya

2022

Molecules

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Nanomaterials (NMs) have been extensively used in several environmental applications; however, their widespread dissemination at full scale is hindered by difficulties keeping them active in engineered systems. Thus, several strategies to immobilize NMs for their environmental utilization have been established and are described in the present review, emphasizing their role in the production of renewable energies, the removal of priority pollutants, as well as greenhouse gases, from industrial streams, by both biological and physicochemical processes. The challenges to optimize the application of immobilized NMs and the relevant research topics to consider in future research are also presented to encourage the scientific community to respond to current needs.

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Photocatalytic materials immobilized on recycled supports and their role in the degradation of water contaminants: A timely review

Cited by 22 publications

References 46 publications

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

CuCe-Ferrite/TiO2 Nanocomposite as an Efficient Magnetically Separable Photocatalyst for Dye Pollutants Decolorization

Solar photo-oxidation of recalcitrant industrial wastewater: a review

Immobilized Nanomaterials for Environmental Applications

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