Synthesis of 7H-indolo[1,2-a]quinolinium derivatives via oxidative photocyclization of 3H-indolium salts using blue LED photoreactor

Sawicka, Marta J.; Lubkowski, Krzysztof; Wróblewska, E. K.; Dzienisz, Alicja; Soroka, Jacek A.

doi:10.1016/j.tet.2019.06.002

Cited by 3 publications

(2 citation statements)

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“…Experiment-derived mass transport and reaction kinetic data may be integrated with the computational fluid dynamics approach to optimize important photoreactor setup factors like reactor chamber design or operational parameters (flow rate, irradiation duration, etc.) (Supplis et al 2018;Sawicka et al 2019). As a consequence, experimental and numerical techniques may be utilized to provide input data for the development of sustainable and cost-effective photoreactors tailored to a certain pollutant and volume .…”

Section: Photocatalytic Reactors Designmentioning

confidence: 99%

The photocatalytic process in the treatment of polluted water

2022

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Wastewaters often contain toxic organic pollutants with a possible adverse effect on human health and aquatic life upon exposure. Persistent organic pollutants such as dyes and pesticides, pharmaceuticals, and other chemicals are gaining extensive attention. Water treatment utilizing photocatalysis has recently received a lot of interest. Photocatalysis is cutting-edge, alternative technology. It has various advantages, including functioning at normal temperatures and atmospheric pressure, cheap prices, no secondary waste creation, and being readily available and easily accessible. This review presented a comprehensive overview of the advances in the application of the photocatalytic process in the treatment of highly polluted industrial wastewater. The analysis of various literature revealed that TiO 2 -based photocatalysts are highly effective in degrading organic pollutants from wastewater compared to other forms of wastewater treatment technologies. The electrical structure of a semiconductor plays a vital role in the photocatalyst's mechanism. The morphology of a photocatalyst is determined by the synthesis method, chemical content, and technical characteristics. The scaled-up of the photoreactors will significantly help in curbing the effect of organic pollutants in wastewater.

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Section: Photocatalytic Reactors Designmentioning

confidence: 99%

The photocatalytic process in the treatment of polluted water

2022

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“…The disadvantage is represented by the difficulties on catalyst recovery and reuse and the shadow effect of the catalyst, which may reduce the light penetration during the photocatalytic activity. The photoreactors working with immobilized photocatalysts (fibers [63], fixed bed reactors [64], packing bed and monolith [65]) have the advantage of easy operation procedures and catalyst recovery. However, the uniform distribution of the photocatalyst in the wastewater volume is still a challenge to be addressed.…”

Section: Photocatalytic Reactors For Wastewater Treatment: Working Principles and Componentsmentioning

confidence: 99%

The Influence of Photocatalytic Reactors Design and Operating Parameters on the Wastewater Organic Pollutants Removal—A Mini-Review

Eneşca

2021

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The organic pollutants removal by conventional methods (adsorption, coagulation, filtration, microorganism and enzymes) showed important limitation due to the reluctance of these molecules. An alternative to this issue is represented by the photocatalytic technology considered as an advanced oxidation process (AOP). The photoreactors design and concepts vary based on the working regime (static or dynamic), photocatalyst morphology (powders or bulk) and volume. This mini-review aims to provide specific guidelines on the correlations between the photoreactor concept characteristics (working regime, volume and flow rate), irradiation scenarios (light spectra, irradiation period and intensity) and the photocatalytic process parameters (photocatalyst materials and dosage, pollutant type and concentration, pollutant removal efficiency and constant rate). The paper considers two main photoreactor geometries (cylindrical and rectangular) and analyses the influence of parameters optimization on the overall photocatalytic efficiency. Based on the systematic evaluation of the input data reported in the scientific papers, several perspectives regarding the photocatalytic reactors' optimization were included.

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