Photocatalytic degradation of metoprolol in aqueous medium using a TiO2/natural zeolite composite

López, Jessica Guadalupe Piedra; Pichardo, Orlando Haciel González; Escobar, José; Río, David A. De Haro Del; Méndez, Horacio Inchaurregui; Rodríguez, Luis Mario González

doi:10.1016/j.fuel.2020.119030

Cited by 36 publications

(15 citation statements)

References 70 publications

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“…This change in the energy of the band gap in catalysts supported on zeolites may be related to the size of the crystal and the ZnO load employed. The incorporation of ZnO in the zeolite can affect the crystallite sizes of ZnO making them smaller and increasing the energy of the band-gap, this can be linked to the quantum confinement effect (Piedra López et al 2021). The pH ZCP are also show in Table 1 and means that for pH values below and above the pH ZCP obtained, the catalyst surface has positive and negative charges, respectively (Batistela et al 2017).…”

Section: Characterization Of Catalystsmentioning

confidence: 97%

Photocatalytic degradation of hydroxychloroquine using ZnO supported on clinoptilolite zeolite

Silva

Nippes

Macruz

et al. 2021

Water Science and Technology

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The objective of this work was to evaluate the photocatalytic activity of zinc oxide catalysts supported on natural zeolite clinoptilolite for photocatalytic degradation of the drug hydroxychloroquine, used in the treatment of malaria and which has been tested in the treatment of COVID-19. To synthesize 10%ZnOCP and 15%ZnOCP catalysts, the wet impregnation methodology was used. The raw and synthesized catalysts were characterized by XRD, SEM, XRF, BET, DRS, PCZ, FT-IR and PL. The degradation of hydroxychloroquine was calculated using UV-vis absorption from the samples before and after the photocatalytic process. The maximum percentage of degradation (96%) was obtained with the operational parameters of C0 = 10 mg L−1; Ccat = 2 g L−1 of 15%ZnOCP; pH = 7.5; UV-A radiation. Ecotoxicological tests against the bioindicators Lactuca sativa and Artemia salina confirmed the reduction of effluent toxicity after treatment.

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Section: Characterization Of Catalystsmentioning

confidence: 97%

Photocatalytic degradation of hydroxychloroquine using ZnO supported on clinoptilolite zeolite

Silva

Nippes

Macruz

et al. 2021

Water Science and Technology

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“…T and T-ZY presented the highest SDBS degradation, being 80 and 72% respectively after 180 min. When compared to reported results, the photocatalysis of organic metoprolol in water with TiO 2 -P25 and with a composite with natural zeolites reached about 30-40% degradation after 180 min at similar natural pH~6 and irradiation wavelength (λ~365 nm) as the values used in the present work while they further used 0.1 v/v% concentration of H 2 O 2 to increase the production of OH radicals [29].…”

Section: Photocatalytic Activitymentioning

confidence: 48%

TiO2–Zeolite Metal Composites for Photocatalytic Degradation of Organic Pollutants in Water

et al. 2021

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Immobilization of photocatalysts in porous materials is an approach to significantly minimize the hazards of manipulation and recovery of nanoparticles. Inorganic materials, such as zeolites, are proposed as promising materials for photocatalyst immobilization mainly due to their photochemical stability. In this work, a green synthesis method is proposed to combine TiO2-based photocatalysts with commercial ZY zeolite. Moreover, a preliminary analysis of their performance as photocatalysts for the abatement of organic pollutants in waters was performed. Our results show that the physical mixture of TiO2 and zeolite maintains photocatalytic activity. Meanwhile, composites fabricated by doping TiO2–zeolite Y materials with silver and palladium nanoparticles do not contribute to improving the photocatalytic activity beyond that of TiO2.

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“…A TiO 2 -based Mexican natural zeolite composite (T/MZ) was studied for the photodegradation of metoprolol, an emerging contaminant used as beta-blocker medicament and employed in the treatment of hypertension, arrhythmia and heart failure. Moreover, it was demonstrated that the zeolite acts not only as a support, but can also enhance the photocatalytic activity of pristine TiO 2 under near-UV light [ 161 ].…”

Section: Silica-based Nanomaterialsmentioning

confidence: 99%

Functional Nanohybrids and Nanocomposites Development for the Removal of Environmental Pollutants and Bioremediation

et al. 2022

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World population growth, with the consequent consumption of primary resources and production of waste, is progressively and seriously increasing the impact of anthropic activities on the environment and ecosystems. Environmental pollution deriving from anthropogenic activities is nowadays a serious problem that afflicts our planet and that cannot be neglected. In this regard, one of the most challenging tasks of the 21st century is to develop new eco-friendly, sustainable and economically-sound technologies to remediate the environment from pollutants. Nanotechnologies and new performing nanomaterials, thanks to their unique features, such as high surface area (surface/volume ratio), catalytic capacity, reactivity and easy functionalization to chemically modulate their properties, represent potential for the development of sustainable, advanced and innovative products/techniques for environmental (bio)remediation. This review discusses the most recent innovations of environmental recovery strategies of polluted areas based on different nanocomposites and nanohybrids with some examples of their use in combination with bioremediation techniques. In particular, attention is focused on eco-friendly and regenerable nano-solutions and their safe-by-design properties to support the latest research and innovation on sustainable strategies in the field of environmental (bio)remediation.

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Photocatalytic degradation of metoprolol in aqueous medium using a TiO2/natural zeolite composite

Cited by 36 publications

References 70 publications

Photocatalytic degradation of hydroxychloroquine using ZnO supported on clinoptilolite zeolite

Photocatalytic degradation of hydroxychloroquine using ZnO supported on clinoptilolite zeolite

TiO2–Zeolite Metal Composites for Photocatalytic Degradation of Organic Pollutants in Water

Functional Nanohybrids and Nanocomposites Development for the Removal of Environmental Pollutants and Bioremediation

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