Photocatalytic degradation of polyethylene plastics by NiAl2O4 spinels-synthesis and characterization

Venkataramana, Challarapu; Botsa, Sathish Mohan; Shyamala, P.; Muralikrishna, R.

doi:10.1016/j.chemosphere.2020.129021

Cited by 79 publications

(38 citation statements)

References 37 publications

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“…3d), only the crystallographic phase of nickel aluminate [96-900-1433] was observed. 29 The homogeneous coloration observed in the samples is associated with the formation of monophase aluminates since there is no presence of possible interferents such as Al 2 O 3 . 15 The aluminates obtention samples caused a decrease in crystallinity (Table 1) compared to the Al 2 O 3 sample due to the difference in the ionic radius of these metals that can cause deformations in the crystal lattice.…”

Section: X-ray Diffractometry (Xrd)mentioning

confidence: 88%

Color stability of blue aluminates obtained from recycling and applied as pigments

et al. 2023

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Section: X-ray Diffractometry (Xrd)mentioning

confidence: 88%

Color stability of blue aluminates obtained from recycling and applied as pigments

et al. 2023

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“…Among the plastics, polyolefins (e.g., PE and PP), which account for 57% of the total plastics produced, [112][113][114] are the most widely investigated in photodegradation studies. [97,[115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131][132][133] Taking PE as an example, some representative studies on solidphase photodegradation of PE in recent years are shown in Figure 5a. Most studies show that it takes several days to weeks for the degradation of majority of the PE, mainly using TiO 2based photocatalyst.…”

Section: Photodegradation Process and Mechanismmentioning

confidence: 99%

Photocatalytic Conversion of Plastic Waste: From Photodegradation to Photosynthesis

Chu

Zhang

Zhao

et al. 2022

Advanced Energy Materials

106

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Plastic waste remains a global challenge due to the massive amounts being produced without satisfactory treatment technologies for recycling and upcycling. Photocatalytic processes are emerging as green and promising approaches to upcycle plastics into value‐added products under mild conditions using sunlight as the energy source. In this review, the recent advances in plastic conversion through photocatalysis have been comprehensively summarized. Special emphasis is placed on the photocatalytic mechanism and the selective CC and CH bond transformations of plastics to access fuels, chemicals, and materials. Finally, the challenges and the perspectives on establishing a new paradigm toward a sustainable and circular plastic economy are also put forward.

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“…Besides, chemical degradation in seawater or replicated seawater has been reported to advance at a higher rate as compared to freshwater because of the variations in pH, and biotic community (Weinstein et al 2016 ; Da Costa et al 2018 ). Multiple chemical processes that are involved in the chemical degradation of MPs have been extensively reported and reviewed in great detail by different authors (Min et al 2020 ; Ye et al 2020b ; Miao et al 2020 ; Venkataramana et al 2021 ; Zhou et al 2021 ; Akhtar et al 2022 ). Both natural and synthetic plastics are degraded by microbial action (Zeenat et al 2021 ).…”

Section: Microplastic Remediation Mediated By Microorganismsmentioning

confidence: 99%

Discovering untapped microbial communities through metagenomics for microplastic remediation: recent advances, challenges, and way forward

Wani

Akhtar

Naqash

et al. 2023

Environ Sci Pollut Res

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Microplastics (MPs) are ubiquitous pollutants persisting almost everywhere in the environment. With the increase in anthropogenic activities, MP accumulation is increasing enormously in aquatic, marine, and terrestrial ecosystems. Owing to the slow degradation of plastics, MPs show an increased biomagnification probability of persistent, bioaccumulative, and toxic substances thereby creating a threat to environmental biota. Thus, remediation of MP-pollutants requires efficient strategies to circumvent the mobilization of contaminants leaching into the water, soil, and ultimately to human beings. Over the years, several microorganisms have been characterized by the potential to degrade different plastic polymers through enzymatic actions. Metagenomics (MGs) is an effective way to discover novel microbial communities and access their functional genetics for the exploration and characterization of plastic-degrading microbial consortia and enzymes. MGs in combination with metatranscriptomics and metabolomics approaches are a powerful tool to identify and select remediation-efficient microbes in situ. Advancement in bioinformatics and sequencing tools allows rapid screening, mining, and prediction of genes that are capable of polymer degradation. This review comprehensively summarizes the growing threat of microplastics around the world and highlights the role of MGs and computational biology in building effective response strategies for MP remediation.

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Photocatalytic degradation of polyethylene plastics by NiAl2O4 spinels-synthesis and characterization

Cited by 79 publications

References 37 publications

Color stability of blue aluminates obtained from recycling and applied as pigments

Color stability of blue aluminates obtained from recycling and applied as pigments

Photocatalytic Conversion of Plastic Waste: From Photodegradation to Photosynthesis

Discovering untapped microbial communities through metagenomics for microplastic remediation: recent advances, challenges, and way forward

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