2022
DOI: 10.3390/nano12152642
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Remarkable Recycling Process of ZnO Quantum Dots for Photodegradation of Reactive Yellow Dye and Solar Photocatalytic Treatment Process of Industrial Wastewater

Abstract: The mineralization of five industrial sunlight-exposed wastewater samples was investigated, and the recycling process of ZnO quantum dots (ZQDs) for five reusable times was estimated under the approved Egyptian Environmental Law COD (Chemical Oxygen Demand), which has to be less than 1000 ppm. An improved sol-gel process at a low calcination temperature that ranged between 350 and 450 °C was employed to synthesize ZnO quantum dots (ZQDs). The purity, high crystallinity, and structure of the prepared catalysts … Show more

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Cited by 6 publications
(1 citation statement)
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“…Over the past few decades, the rapid development of modern industries worldwide has led to a severe cascade of problems in the water environment and human health [1][2][3]. Organic dyes, such as rhodamine B (RhB) and methyl orange (MO), are bulk and commonly used chemicals in the textile and apparel industries that are lost in a large portion (~20%) during the synthesis and manufacturing processes and are discharged into the water [4,5].…”
Section: Introductionmentioning
confidence: 99%
“…Over the past few decades, the rapid development of modern industries worldwide has led to a severe cascade of problems in the water environment and human health [1][2][3]. Organic dyes, such as rhodamine B (RhB) and methyl orange (MO), are bulk and commonly used chemicals in the textile and apparel industries that are lost in a large portion (~20%) during the synthesis and manufacturing processes and are discharged into the water [4,5].…”
Section: Introductionmentioning
confidence: 99%