Recent Advances in Photocatalytic Removal of Microplastics: Mechanisms, Kinetic Degradation, and Reactor Design

Hamd, Wael; Daher, Elie A.; Tofa, Tajkia Syeed; Dutta, Joydeep

doi:10.3389/fmars.2022.885614

Cited by 27 publications

(15 citation statements)

References 255 publications

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“…AOP‐assisted MP degradation from the aqueous matrices was evaluated by Rizwan and Bilal (2022). Hamd et al (2022) explain the mechanisms, kinetic degradation and recent advances in reactor design for the photocatalytic removal of MPs. Innovative catalytic processes, such as PC, enhanced oxidation and biotechnology, offer eco‐friendly alternatives to the current MP waste disposal and produce usable products from MPs and plastic trash (Chen et al, 2022a).…”

Section: Aopsmentioning

confidence: 99%

“…They pointed out the difficulties and challenges related to the separation, deterioration and subsequent recycling of micro/nanoplastics in urban waterways. AOP-assisted MP degradation from the aqueous matrices was evaluated byRizwan and Bilal (2022) Hamd et al (2022). explain the mechanisms, kinetic degradation and recent advances in reactor design for the photocatalytic removal of MPs.…”

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confidence: 99%

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Advanced oxidation processes for the degradation of microplastics from the environment: A review

Gayathri

Joseph

Mohan

et al. 2023

Water & Environment J

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Microplastic pollution has rapidly become one of the major global environmental concerns because of its low biodegradability rate and threat to biota. Although many treatment methods are reported, the advanced oxidation process (AOP) is recommended because of its capacity to completely mineralize organic pollutants into carbon dioxide and water. This review gathers published investigations on recent AOP techniques (UV/solar photolysis and photocatalysis (PC), UV/H2O2, Fenton reaction, sonolysis, heat‐activated persulphate and peroxymonosulphate) tested for the degradation of microplastics from water and wastewater. The review lists 54 studies, by far the most comprehensive collection on the AOP‐driven treatment of microplastics, and is also the first to explain the methods related to the ultrasonic degradation of microplastics. We found that all the reviewed AOP techniques achieved satisfying performance in the degradation of microplastics. This paper proposes recommendations for future research based on the review.

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Section: Aopsmentioning

confidence: 99%

mentioning

confidence: 99%

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Gayathri

Joseph

Mohan

et al. 2023

Water & Environment J

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“…These MPs may eventually result in the aquatic ecosystem. Studies on WTP from various sites revealed that an excessive quantity of MPs in the treated water ranges between 5.00 × 10 5 and 1.39 × 10 10 particles (Hamd et al, 2022). As per the scientific reports, there is still no distinct approach in any WTP for the elimination of MPs.…”

Section: Limitations Of Current Techniquesmentioning

confidence: 99%

“…The TiO 2 -embedment approach was used to degrade plastics such as PE, PP, PVC, PS, and PS polymers under diverse parameters (Fa et al, 2013;Nabi et al, 2020;Hamd et al, 2022). The PCD of PS plastics was carried out under UV irradiation using PS-TiO 2 composite.…”

Section: Titanium Dioxide Assisted Photocatalytic Degradation Of Micr...mentioning

confidence: 99%

Prospects of TiO2-based photocatalytic degradation of microplastic leachates related disposable facemask, a major COVID-19 waste

Mukherjee²

2022

Front. Nanotechnol.

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COVID-19 is one of the serious catastrophes that have a substantial influence on human health and the environment. Diverse preventive actions were implemented globally to limit its spread and transmission. Personnel protective equipment (PPE) was an important part of these control approaches. But unfortunately, these types of PPE mainly comprise plastics, which sparked challenges in the management of plastic waste. Disposable face masks (DFM) are one of the efficient strategies used across the world to ward off disease transmission. DFMs can contribute to micro and nano plastic pollution as the plastic present in the mask may degrade when exposed to certain environmental conditions. Microplastics (MPs) can enter the food chain and devastate human health. Recognizing the possible environmental risks associated with the inappropriate disposal of masks, it is crucial to avert it from becoming the next plastic crisis. To address this environmental threat, titanium dioxide (TiO2)-based photocatalytic degradation (PCD) of MPs is one of the promising approaches. TiO2-based photocatalysts exhibit excellent plastic degradation potential due to their outstanding photocatalytic ability, cost efficiency, chemical, and thermal stability. In this review, we have discussed the reports on COVID-19 waste generation, the limitation of current waste management techniques, and the environmental impact of MPs leachates from DFMs. Mainly, the prominence of TiO2 in the PCD and the applications of TiO2-based photocatalysts in MPs degradation are the prime highlights of this review. Additionally, various synthesis methods to enhance the photocatalytic performance of TiO2 and the mechanism of PCD are also discussed. Furthermore, current challenges and the future research perspective on the improvement of this approach have been proposed.

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“…However, recycling microplastic contaminant particles from the ocean and applying them to solar collectors not only helps to improve marine ecology but also improves the heat transfer performance of solar collectors. In addition, research on the radiative properties of microplastic particles can also be employed to enhance microalgal photosynthesis in a medium polluted with microplastics ( Hamd et al, 2022 ). Research has shown that the addition of nano- and micron-particle suspensions to the conventional solar collector can improve its heat transfer performance ( Devendiran and Amirtham, 2016 ; Turkyilmazoglu, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Toward a better understanding of microalgal photosynthesis in medium polluted with microplastics: a study of the radiative properties of microplastic particles

Yang

2023

Front. Bioeng. Biotechnol.

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Due to the wide presence of microplastics in water, the interaction between microplastic particles and microalgae cells in medium merits the attention of researchers. Microplastic particles can impact the original transmission of light radiation in water bodies since the refractive index of microplastics is different from that of water bodies. Accordingly, the accumulation of microplastics in water bodies will certainly impact microalgal photosynthesis. Therefore, experimental measurements and theoretical studies characterizing the radiative properties of the interaction between light and microplastic particles are highly significant. The extinction and absorption coefficient/cross-section of polyethylene terephthalate and polypropylene were experimentally measured using transmission and integrating methods in the spectral range of 200–1,100 nm. The absorption cross-section of PET shows remarkable absorption peaks in the vicinity of 326 nm, 700 nm, 711 nm, 767 nm, 823 nm, 913 nm, and 1,046 nm. The absorption cross-section of PP has distinctive absorption peaks near 334 nm, 703 nm, and 1,016 nm. The measured scattering albedo of the microplastic particles is above 0.7, indicating that both microplastics are scattering dominant media. Based on the results of this work, an in-depth understanding of the interaction between microalgal photosynthesis and microplastic particles in the medium will be obtained.

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Recent Advances in Photocatalytic Removal of Microplastics: Mechanisms, Kinetic Degradation, and Reactor Design

Cited by 27 publications

References 255 publications

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Advanced oxidation processes for the degradation of microplastics from the environment: A review

Prospects of TiO2-based photocatalytic degradation of microplastic leachates related disposable facemask, a major COVID-19 waste

Toward a better understanding of microalgal photosynthesis in medium polluted with microplastics: a study of the radiative properties of microplastic particles

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