Biodegradable chito-beads replacing non-biodegradable microplastics for cosmetics

Ju, Sungbin; Shin, Giyoung; Lee, Minkyung; Koo, Jun Mo; Jeon, Hyeonyeol; Ok, Yong Sik; Hwang, Dong Soo; Hwang, Sung Yeon; Oh, Dongyeop X.; Park, Jeyoung

doi:10.1039/d1gc01588e

Cited by 60 publications

(35 citation statements)

References 70 publications

(47 reference statements)

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“…This imposes a great threat to marine wildlife, food safety, public health, tourism and the fishing industry. Increasingly, microplastics pollution has emerged as a looming catastrophe because of their persistent hazards for marine ecosystems [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Accelerated Degradation of Poly(lactide acid)/Poly(hydroxybutyrate) (PLA/PHB) Yarns/Fabrics by UV and O2 Exposure in South China Seawater

et al. 2022

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Marine plastic pollution is emerging as a potential hazard to global ecosystems and human health. Micro-fibers derived from synthetic textiles contribute a considerable proportion of plastic debris. Bio-polymers/bio-plastics have been proposed for the application of apparel products, yet their degradability, fate, durability and related environmental parameters are still elusive and need further exploration. Herein, we report the degradation behavior of poly(lactide acid)/poly(hydroxybutyrate) (PLA/PHB) fabrics, made from PLA/PHB multi-filament yarns, in subtropics marine seawater. The degradation experiments were performed under various parallel conditions including static seawater, aerobic seawater in dark box, aerobic seawater under sunlight, static seawater under ultra-violet light and aerobic seawater under ultra-violet light. Continuous mass loss of PLA/PHB fabrics as the immersion time in the seawater increased was confirmed. The hydrolysis rate of PLA/PHB fabrics accelerated in the presence of UV light and dissolved oxygen in the seawater. Moreover, the tensile strength of the PLA/PHB yarns dropped rapidly by 38.54–68.70% in spite of the mass loss percentage being from 9.57% to 14.48% after 2 weeks’ immersion. All the PLA/PHB fabrics after two weeks’ immersion exhibited similar ATR-IR spectra. Therefore, the degradability of PLA/PHB fabrics, in the marine surface water under the synergistic destructive effect of seawater, UV and dissolved oxygen, provides a pathway for more sustainable textile fibers and apparel products.

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Section: Introductionmentioning

confidence: 99%

Accelerated Degradation of Poly(lactide acid)/Poly(hydroxybutyrate) (PLA/PHB) Yarns/Fabrics by UV and O2 Exposure in South China Seawater

et al. 2022

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“…This has led some industries to list and identify sustainable particles that are certainly biodegradable and are almost equivalent to the microplastic particles found in cosmetics, even in terms of price, solvent resistance, surface shape, uniform size, and mechanical properties. Biodegradable products have been replaced by: natural hard material (human walnut), synthesized bio-based polymers (polylactic acid), and natural polymers (starch, lignin) [ 27 ]. There is a growing interest in the development of green plastic using natural resources.…”

Section: Fragments Of Plastics and Polymersmentioning

confidence: 99%

Microplastics in Wastewater by Washing Polyester Fabrics

2022

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Microplastics have become one of the most serious environmental hazards today, raising fears that concentrations will continue to rise even further in the near future. Micro/nanoparticles are formed when plastic breaks down into tiny fragments due to mechanical or photochemical processes. Microplastics are everywhere, and they have a strong tendency to interact with the ecosystem, putting biogenic fauna and flora at risk. Polyester (PET) and polyamide (PA) are two of the most important synthetic fibres, accounting for about 60% of the total world fibre production. Synthetic fabrics are now widely used for clothing, carpets, and a variety of other products. During the manufacturing or cleaning process, synthetic textiles have the potential to release microplastics into the environment. The focus of this paper is to explore the main potential sources of microplastic pollution in the environment, providing an overview of washable polyester materials.

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“…It is a global consensus that plastic pollution is a serious threat to the sustainability of the world . The COVID-19 pandemic dramatically facilitates this threat due to the massive usage of plastic-induced medical waste and face mask. , How to handle the plastic waste efficiently, economically, and environmentally friendly still remains a challenge. , With concerns of the fact that the vast majority of plastics are derived from fossil fuel, thermally converting plastic waste back to energy and fuels to partly replace fossil fuel is a good motivation not only from a straightforward energy recovery thought, but it also can permanently eliminate plastic waste almost instantaneously compared with the speed of biodegradation in nature. , Unfortunately, conventional thermo-treatment of plastic waste resulted in complex hydrocarbon organics with a carbon number ranging from 1 to 60, which contain a lot of wax and tar products. Therefore, the thermochemical technologies such as pyrolysis and gasification proposed up to now are limited for the large-scale handling of plastic waste. , Exploiting the efficient and economic technologies to homogeneously convert plastic waste into valuable products is still necessary to a sustainable society.…”

Section: Introductionmentioning

confidence: 99%

“…4,5 With concerns of the fact that the vast majority of plastics are derived from fossil fuel, thermally converting plastic waste back to energy and fuels to partly replace fossil fuel is a good motivation not only from a straightforward energy recovery thought, but it also can permanently eliminate plastic waste almost instantaneously compared with the speed of biodegradation in nature. 6,7 Unfortunately, conventional thermo-treatment of plastic waste resulted in complex hydrocarbon organics with a carbon number ranging from 1 to 60, 8 which contain a lot of wax and tar products. Therefore, the thermochemical technologies such as pyrolysis and gasification proposed up to now are limited for the large-scale handling of plastic waste.…”

Section: ■ Introductionmentioning

confidence: 99%

Sustainable and Highly Efficient Recycling of Plastic Waste into Syngas via a Chemical Looping Scheme

Wang

2022

Environ. Sci. Technol.

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Converting plastic waste into valuable products (syngas) is a promising approach to achieve sustainable cities and communities. Here, we propose for the first time to convert plastic waste into syngas via the Fe2AlO x -based chemical looping technology in a two-zone reactor. The Fe2AlO x -based redox cycle was achieved with the pyrolysis of plastic waste in the upper zone, followed by the decomposition and thermal cracking of hydrocarbon vapors, and the oxidation and water splitting in the lower zone (850 °C) enabled a higher carbon conversion (81.03%) and syngas concentration (92.84%) when compared with the mixed feeding process. The iron species could provide lattice oxygen and meanwhile act as the catalyst for the deep decomposition of hydrocarbons into CO and the accumulation of deposited carbon in the reduction step. Meanwhile, the introduced water would be split by the reduced iron and deposited carbon to further produce H2 and CO in the following oxidation step. A high hydrogen yield of 85.82 mmol/g HDPE with a molar ratio of H2/CO of 2.03 was achieved from the deconstruction of plastic waste, which lasted for five cycles. This proof of concept demonstrated a sustainable and highly efficient pathway for the recycling of plastic waste into valuable chemicals.

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Biodegradable chito-beads replacing non-biodegradable microplastics for cosmetics

Abstract: The global ban on plastic microbeads for personal care products has forced researchers to find sustainable alternatives. However, current biodegradable microbeads rarely offer competitive quality (mechanical properties and stability) and...

Cited by 60 publications

References 70 publications

Accelerated Degradation of Poly(lactide acid)/Poly(hydroxybutyrate) (PLA/PHB) Yarns/Fabrics by UV and O2 Exposure in South China Seawater

Accelerated Degradation of Poly(lactide acid)/Poly(hydroxybutyrate) (PLA/PHB) Yarns/Fabrics by UV and O2 Exposure in South China Seawater

Microplastics in Wastewater by Washing Polyester Fabrics

Sustainable and Highly Efficient Recycling of Plastic Waste into Syngas via a Chemical Looping Scheme

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