Photocatalytic degradation of acetamiprid in a rotating photoreactor - Determination of reactive species

Zelić, Ivana Elizabeta; Povijač, K.; Gilja, Vanja; Tomašić, Vesna; Gomzi, Zoran

doi:10.1016/j.catcom.2022.106474

Cited by 9 publications

(4 citation statements)

References 25 publications

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“…Due to its carcinogenetic and non-biodegradable nature, it is crucial to explore efficient methods and materials to remove RhB from wastewater and industrial effluents. [50][51][52] We have examined the potential of our TiO 2 nanoparticles as photocatalysts towards the degradation of RhB under UV light.…”

Section: Photocatalysis Resultsmentioning

confidence: 99%

“…Rhodamin B (RhB) is a water‐soluble fluorescent dye of xanthene class that is extensively used in different industries for paper and textile dyeing as well as for the production of laser dye. Due to its carcinogenetic and non‐biodegradable nature, it is crucial to explore efficient methods and materials to remove RhB from wastewater and industrial effluents [50–52] . We have examined the potential of our TiO 2 nanoparticles as photocatalysts towards the degradation of RhB under UV light.…”

Section: Resultsmentioning

confidence: 99%

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Green Synthesis of TiO₂ Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

et al. 2023

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Herein, we report a unique surfactant‐free synthetic pathway for the synthesis of anatase TiO2 catalysts in the size range of 13 to 20 nm by solvothermal method using choline chloride‐urea deep eutectic solvent (DES) as green media and 2‐propanol as cosolvent. The composition of reline was tuned by adding 0 (pure reline), 5, 10, 20 and 50 wt% of 2‐propanol. The amount of cosolvent was found to have a significant influence on TiO2 particle size, N2 isotherms and the magnitude of Urbach energy formed within the band gap of mesoporous TiO2 nanostructures. The sample obtained with 10 wt% of propanol showed the best photocatalytic activity in the degradation of Rhodamine B (RhB), which is attributed to the combined effect of Urbach tail states, specific surface area, particle size and band gap energy of TiO2 NPs. Radical trapping experiments with scavengers revealed that OH⋅ radicals are primarily responsible for RhB decomposition.

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Section: Photocatalysis Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Green Synthesis of TiO₂ Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

et al. 2023

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“…For the electrons, the scavengers used are potassium bromate (KBrO 3 ), potassium persulfate (K 2 S 2 O 8 ), and ammonium persulfate (NH 4 ) 2 S 2 O 8 ) [212][213][214]. Te singlet oxygen ( 1 O 2 ) is determined by adding sodium azide (NaN 3 ) [215]. Christoforidis et al [162] investigated the active species role by control experiments on the FCN-3 sample.…”

Section: Role Of Active Species In Photodegradation Of Dyementioning

confidence: 99%

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Chowdhury,

Anantharaju,

Keshavamurthy

et al. 2023

Journal of Chemistry

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In recent decades, the textile industry has contributed to continuous pollution in the environment. Synthetic dyes which are commonly found in waste water are azo, sulfur, anthraquinone, triphenylmethyl, indigoid, and phthalocyanine derivatives. These pollutants block the light penetration in water bodies and prevent photosynthesis activity, thereby affecting aquatic life. As an environmental crisis, several technologies have been explored to control pollution. Among all the techniques, the photocatalysis process is considered as a green, simple, and economical process. To improve the photocatalytic activity, researchers worldwide have investigated various photocatalysts such as metal oxides, metal ferrites, and heterostructured nanocomposites. The major goal of this review article is to propose a high-performing, cost-effective hybrid photocatalyst reported to date for prospective azo dye pollutant remediation. This review article also aimed to highlight the challenges and uncertainties associated with dye degradation in the photocatalytic process.

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“…Acetamiprid (ACM) is one of the most widely used NNs and extensive research efforts have been devoted to investigating the kinetics and products of ACM oxidation in the aqueous phase, including wastewater ( 32 – 40 ). However, to date, the oxidation reactions of solid films of ACM on aerosol particles by gas phase species and by those generated by solid substrates remain unexplored.…”

mentioning

confidence: 99%

Top–down versus bottom–up oxidation of a neonicotinoid pesticide by OH radicals

Wang,

Wingen

et al. 2024

Proc. Natl. Acad. Sci. U.S.A.

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Emerging contaminants (EC) distributed on surfaces in the environment can be oxidized by gas phase species (top–down) or by oxidants generated by the underlying substrate (bottom–up). One class of EC is the neonicotinoid (NN) pesticides that are widely distributed in air, water, and on plant and soil surfaces as well as on airborne dust and building materials. This study investigates the OH oxidation of the systemic NN pesticide acetamiprid (ACM) at room temperature. ACM on particles and as thin films on solid substrates were oxidized by OH radicals either from the gas phase or from an underlying TiO 2 or NaNO 2 substrate, and for comparison, in the aqueous phase. The site of OH attack is both the secondary >CH 2 group as well as the primary –CH 3 group attached to the tertiary amine nitrogen, with the latter dominating. In the case of top–down oxidation of ACM by gas phase OH radicals, addition to the –CN group also occurs. Major products are carbonyls and alcohols, but in the presence of sufficient water, their hydrolyzed products dominate. Kinetics measurements show ACM is more reactive toward gas phase OH radicals than other NN nitroguanidines, with an atmospheric lifetime of a few days. Bottom–up oxidation of ACM on TiO 2 exposed to sunlight outdoors (temperatures were above 30 °C) was also shown to occur and is likely to be competitive with top–down oxidation. These findings highlight the different potential oxidation processes for EC and provide key data for assessing their environmental fates and toxicologies.

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Photocatalytic degradation of acetamiprid in a rotating photoreactor - Determination of reactive species

Cited by 9 publications

References 25 publications

Green Synthesis of TiO₂ Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

Green Synthesis of TiO₂ Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Top–down versus bottom–up oxidation of a neonicotinoid pesticide by OH radicals

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Photocatalytic degradation of acetamiprid in a rotating photoreactor - Determination of reactive species

Cited by 9 publications

References 25 publications

Green Synthesis of TiO2 Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

Green Synthesis of TiO2 Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

Recent Advances in Efficient Photocatalytic Degradation Approaches for Azo Dyes

Top–down versus bottom–up oxidation of a neonicotinoid pesticide by OH radicals

Contact Info

Product

Resources

About

Green Synthesis of TiO₂ Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent

Green Synthesis of TiO₂ Nanoparticles in a Deep Eutectic Solvent for High‐Performance Photocatalysis: The Role of the Cosolvent