A multidisciplinary approach to the environmental problem of emerging pollution: Synthesis and application of a novel composite photocatalyst and the case study of salbutamol degradation

Alberti, Stefano; Rucco, Michela; Di Carro, Marina; Magi, Emanuele; Ferretti, Maurizio; Benedetti, Barbara

doi:10.1016/j.jece.2023.110262

Cited by 7 publications

(4 citation statements)

References 67 publications

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“…It's a helpful way to combat challenges related to not having enough energy and the harmful effects of pollution. This technique offers a simple yet effective approach to creating cleaner and more sustainable solutions for our environment [26][27][28]. Amidst the array of available semiconducting materials, chalcogenides, and oxide-based compounds hold prominence.…”

Section: Introductionmentioning

confidence: 99%

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

Radja,

Nebatti Ech-Chergui,

Zekri

et al. 2024

Phys. Scr.

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Tin sulfide (SnS2) is a material known for its effective photocatalytic activity due to its affordability and wide light spectrum response. To enhance and optimize its optical and chemical characteristics, doping is a straightforward approach that can improve its photocatalytic efficiency. This work focuses on the effect of Cu doping on the structural, optical, and photocatalytic properties of the thin films prepared by the spray-coating approach. XRD confirms the hexagonal SnS2 structure. As the amount of Cu added increases, the crystallite size decreases while dislocation density rises. The effective band gap is in the range of 1.9-2.2 eV. SEM image reveals a variety of morphologies, and the porosity is reduced with increasing Cu doping. Furthermore, the FTIR study confirm the Sn-S bond present at 753 cm-1. EPR studies reveal the existence of sulphur vacancies in Cu-doped SnS2. Mechanical properties were also affected, with an observed decrease in microhardness as the dopant concentration increased. The photocatalytic activity of the samples is studied by photocatalytic degradation of malachite green and Congo red dyes under visible light irradiation. Additionally, their antibacterial effect against Escherichia coli was examined. This study shows that an optimal amount of Cu doping can significantly increase the photocatalytic performance of SnS2 for efficiently decomposing organic pollutants and enhance antibacterial activities.

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Section: Introductionmentioning

confidence: 99%

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

Radja,

Nebatti Ech-Chergui,

Zekri

et al. 2024

Phys. Scr.

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“…There are some tentative proof-of-concept examples of roads able to glow in the dark; , moreover, it has been recently proven the possibility to build smart windows that use persistent luminescence materials for indoor lighting . Persistent luminescence materials can be coupled to photocatalysts , to have photodegradation in the darkness; however, the mechanism involved in the energy/photons transfer between the two materials is still unclear and needs further detailed investigation. Despite their great potential, PeLMs do not still have the performance for an outbreak in the luminescence materials community.…”

Section: Introductionmentioning

confidence: 99%

From Bulk to Nano: The Effect on the Persistent Luminescence

Di Giorgio,

Campolucci,

Alberti

et al. 2024

Crystal Growth & Design

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Persistent luminescence materials are compounds able to glow in the dark after proper excitation. After the discovery in the 1990s of the long persistent luminescence in SrAl 2 O 4 :Eu 2+ ,Dy 3+ lasting 12 hours, the interest in this class of materials has grown quickly. Today, thousands of compounds are known to possess persistent luminescence, and some of them have found real industrial applicability. However, the mechanism driving the persistent luminescence remains somewhat unknown. The scenario is further complicated by moving from bulk materials to nanocrystals. Herein, we give an overview of the most important goals achieved in persistent luminescence materials and a critical perspective on this peculiar phenomenon at the nanoscale.

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“…Furthermore, this synthetic approach allows an easy coupling with different types of innovative materials to endow the composite sample with additional features (Azeez et al 2018 ; Bhatkhande et al 2002 ; Sivaraman et al 2022 ; Younis and Kim 2020 ). In this regard, it is has been recently documented how the photocatalyst supported on persistent luminescence materials (PeL) increased the overall efficiency and allowed the photocatalytic process to occur in the dark (Alberti et al 2023 ; Azeez et al 2018 ; Villa et al 2016 ), which is significant in terms of reduction of energy consumption (Koumaki et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of TiO2-based supported materials for industrial application and recovery in a pilot photocatalytic plant using chemometric approach

Ghibaudo,

Ferretti,

Al-Hetlani

et al. 2024

Environ Sci Pollut Res

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In this contribution, the performance of powdered titanium dioxide (TiO2)–based photocatalysts was evaluated in a pilot photocatalytic plant for the degradation of different dyes, with an investigated volume of 1 L and solar simulated light as irradiation source. Five different samples, synthesized in our laboratories, were tested in the pilot plant, each consisting of TiO2 nanoparticles (NPs) coupled with a different material (persistent luminescent material and semiconductor material) and treated in different thermal conditions. All synthesized samples have been subjected to X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller analysis (BET), and transmission electron microscopy (TEM) characterization, to shed light on the influence of introducing other materials on titania characteristics. To study and evaluate the significance of the parameters affecting the process in the pilot plant, a chemometric approach was applied, by selecting a mathematical model (D-Optimal) to simultaneously monitor a large number of variables (i.e., 7), both qualitative and quantitative, over a wide range of levels. At the same time, the recovery of the synthesized photocatalysts was studied following a novel promising recuperation method, i.e., annulling the surface charge of the suspended samples by reaching the isoelectric point (pHPZC) of each sample, for the quantitative precipitation of TiO2 nanoparticles. Graphical Abstract

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A multidisciplinary approach to the environmental problem of emerging pollution: Synthesis and application of a novel composite photocatalyst and the case study of salbutamol degradation

Cited by 7 publications

References 67 publications

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

From Bulk to Nano: The Effect on the Persistent Luminescence

Synthesis and characterization of TiO2-based supported materials for industrial application and recovery in a pilot photocatalytic plant using chemometric approach

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A multidisciplinary approach to the environmental problem of emerging pollution: Synthesis and application of a novel composite photocatalyst and the case study of salbutamol degradation

Cited by 7 publications

References 67 publications

Influence of Cu doping on the functionality of spray coated SnS2 thin films and its photocatalytic degradation of dyes and antibacterial activity

Influence of Cu doping on the functionality of spray coated SnS2 thin films and its photocatalytic degradation of dyes and antibacterial activity

From Bulk to Nano: The Effect on the Persistent Luminescence

Synthesis and characterization of TiO2-based supported materials for industrial application and recovery in a pilot photocatalytic plant using chemometric approach

Contact Info

Product

Resources

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Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity