Electrocatalytic Grafting of Polyvinyl Chloride Plastics DOI Creative Commons

Jordan L. S. Zackasee,

Valmuri Srivardhan,

Blaise L. Truesdell

et al.

Published: Aug. 12, 2024

Polyvinyl chloride (PVC) plastics require high loadings of plasticizers and stabilizers to achieve commercially useful bulk properties. However, these non-covalent additives leach from PVC over time, resulting in the loss their tailored functionality. This work details electrocatalytic functionalization covalently graft plasticizing directly onto polymer backbone. Here, mechanistic insights guided design electrocatalysts capable modifying C–Cl bonds under mild conditions with selectivity while suppressing side reactions such as elimination chain scission. Functional groups that mimic are installed into backbone create new materials distinct properties original polymer. The degree grafting is easily controlled by simply changing redox capacity passed during electrolysis. strategy employed chemically- leach-resistant electrolyzing mixtures consumer products.

Language: Английский

Microplastics in water: Occurrence, fate and removal DOI Creative Commons
Shaneel Chandra, Kerry B. Walsh

Journal of Contaminant Hydrology, Journal Year: 2024, Volume and Issue: 264, P. 104360 - 104360

Published: May 1, 2024

A global study on tap water samples has found that up to 83% of these contained microplastic fibres. These findings raise concerns about their potential health risks. Ingested particles have already been associated with harmful effects in animals, which similar outcomes humans. Microplastics are ubiquitous the environment, commonly disposed landfills and waste sites. Within indoor environments, common sources synthetic textiles, plastic bottles, packaging. From various point sources, they globally distributed through air can enter humans pathways. The finding microplastics fresh snow Antarctic highlights just how widely dispersed. behaviour risks from strongly influenced by physicochemical properties, is why surfaces important. Surface interactions also important pollutant transport via adsorption onto particles. Our review covers latest research including statistics abundance, occurrence fate methods reducing exposure removal. We conclude proposing future directions into more effective remediation new technologies sustainable green need be explored achieve success removal waters at large scale.

Language: Английский

Citations

19

Polyvinyl chloride (PVC), its additives, microplastic and human health: Unresolved and emerging issues DOI

Luca Campisi,

Concettina La Motta,

Dorota Napierska

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 960, P. 178276 - 178276

Published: Jan. 1, 2025

Language: Английский

Citations

3

Poly(vinyl chloride) (PVC): an updated review of its properties, polymerization, modification, recycling, and applications DOI
Great Iruoghene Edo, Winifred Ndudi,

Ali B. M. Ali

et al.

Journal of Materials Science, Journal Year: 2024, Volume and Issue: 59(47), P. 21605 - 21648

Published: Nov. 27, 2024

Language: Английский

Citations

13

Synthesis, Modification, and Applications of Poly(vinyl chloride) (PVC) DOI
Ahmed K. Hussein, Emad Yousif,

Malath Khalaf Rasheed

et al.

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 40

Published: Nov. 1, 2024

One of the polymers with biggest production volume is poly(vinyl chloride) (PVC) considering their versatility, durability, lightweight, as well low cost production, plastics have recently become an essential part everyone's daily life. However, increased and usage poses significant environmental problems because incomplete utilization, a lengthy biodegradation period, detrimental effects on living things. This study examines latest findings in PVC research, including its properties, polymerization, modification, recycling, diverse applications. It has been proposed that during along application both inorganic organic thermal stabilizers, can mitigate some basic limiting characteristics PVC. chemistry extended by vast continuous study, mainly chemical transformations this polymeric material. describes modification using different materials active modifying agent. The latter included substitutions, modifications, nucleophilic radicals, removal or dehydrochlorination, grafting polymerizations. PVC's consequences are examined, overview functionalization provided article, discussion main reactivity trends lens recycling.

Language: Английский

Citations

9

Microplastic production, distribution, and removal from the environment: a review DOI
Yu. V. Ioni,

Muhammad Farooq,

D. Roshka

et al.

Russian Chemical Reviews, Journal Year: 2025, Volume and Issue: 94(3), P. RCR5155 - RCR5155

Published: March 1, 2025

The presence of microplastics (MPs) in the environment is a highly relevant and aggravating environmental problem, which concern not only for specialists various fields but also everyone who cares about future Earth. ever-increasing production polymers expanding use plastic products enlarged MP concentrations Earth's ecosystem. need to control accumulation spread MPs caused by current crisis where no microplastic-free areas have remained on number studies dealing with existing potential threat living organisms from consumption increasing every year. aim this review systematize available information occurrence briefly describe main types polymer materials acting as sources mechanisms formation transport environment. hazardous behaviour analyzed considering their impact physiology aquatic soil organisms. Special emphasis demonstrating adverse effect emissions 3D printing materials. An overview methods capture given facilitate analysis development more reliable removal disposal. As result review, we assess long-term human health consequences exposure. Understanding formation, lifecycle environment, ways interaction will controlling design implementation effective techniques remediation prevent ecological consequences. <br>The bibliography includes 244 references.

Language: Английский

Citations

2

Microplastic Categories Distinctively Impact Wastewater Bacterial Taxonomic Composition and Antimicrobial Resistance Genes DOI Creative Commons
Tam T. Tran, Kabelo Stephans Stenger,

Marte Strømmen

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(2), P. 260 - 260

Published: Jan. 24, 2025

Wastewater treatment plants (WWTPs) may serve as hotspots for pathogens and promote antimicrobial resistance (AMR). Plastic debris in wastewater could further contribute to AMR dissemination. The aim of this study was investigate the impact various microplastic types on bacterial communities gene abundance that were obtained from two WWTPs, one Tromsø, Norway, other Potchefstroom, South Africa. microcosm experiments designed follows: Five manufactured pellet used testing, rock aggregate controls. In addition, each material type subjected artificial aging treatments using either ultra-violet light or hydrogen peroxide. Each incubated flasks containing inlet/outlet these WWTPs. Nucleic acids extracted after a one-week incubation period. detection blaFOXand blaMOX genes performed quantitative PCR. Extracted DNA sequenced MinION device. Non-metric multi-dimensional scaling plot full-length 16S sequencing data at species level showed samples clustered into distinct groups, which line with ANOSIM test. Indicator Species Analysis strong association between many Acinetobacter plastic group than group. Aging peroxide some effects microbial composition outlet wastewater. blaFOX Norwegian generally lower compared those inlet, though results contrary African samples. relative seemed be increased several (PET, PE, PLA) but decreased PVC-A. WWTP did not effectively reduce genes. An in-depth understanding role specific profiles is, therefore, needed combat threat.

Language: Английский

Citations

1

Unraveling the ecotoxicological effects of micro and nano-plastics on aquatic organisms and human health DOI Creative Commons
Saima Naz, Ahmad Manan Mustafa Chatha, Nisar Khan

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: April 8, 2024

Plastic pollution ranks among the most severe environmental disasters caused by humans, generating millions of tonnes waste annually. The extensive and unregulated use plastics has led to ecotoxicity imbalance. Microplastics (MPs) are prevalent in aquatic environments, these MPs further degrade into even smaller particles known as nano-plastics (NPs). Both NPs impact environment readily absorbing organic pollutants pathogens from their surroundings, owing bigger surface area volume ratio. This review focuses on source origin, bioaccumulation, potential organisms human health. Additionally, explores various methods employed for identification quantification ecosystems. Sufficient information is available characteristics, distributions, effects marine ecosystems compared with freshwater For plastic &lt;10 μm, more toxicological were observed larger size particles, life. Understanding mechanism action ecotoxicological micro/nano-plastics health life across trophic levels, well health, utmost importance. We address knowledge gaps provide insights future research approaches a better understanding interactive mechanisms between binary pollutants.

Language: Английский

Citations

7

Advancements in Synthetic Biology for Enhancing Cyanobacterial Capabilities in Sustainable Plastic Production: A Green Horizon Perspective DOI Creative Commons
Taufiq Nawaz, Liping Gu, Zhong Hu

et al.

Fuels, Journal Year: 2024, Volume and Issue: 5(3), P. 394 - 438

Published: Aug. 27, 2024

This comprehensive review investigates the potential of cyanobacteria, particularly nitrogen-fixing strains, in addressing global challenges pertaining to plastic pollution and carbon emissions. By analyzing distinctive characteristics including their minimal growth requirements, high photosynthetic efficiency, rapid rates, this study elucidates crucial role transforming sequestration, biofuel generation, biodegradable production. The investigation emphasizes cyanobacteria’s efficiency photosynthesis, positioning them as optimal candidates for cost-effective bioplastic production with minimized land usage. Furthermore, explores unconventional yet promising utilization biodiesel production, mitigating environmental concerns such sulfur emissions presence aromatic hydrocarbons. resulting exhibits significant combustion potential, establishing cyanobacteria a viable option sustainable Through assessment both achievements encountered during commercialization process, offers valuable insights into diverse contributions cyanobacteria. Its objective is provide guidance researchers, policymakers, industries interested harnessing bio-inspired approaches structural applications, thereby advancing efforts towards environmentally conscious

Language: Английский

Citations

6

PVC Dechlorination for Facilitating Plastic Chemical Recycling: A Systematic Literature Review of Technical Advances, Modeling and Assessment DOI Open Access
Yuan Tian,

Mengqi Han,

Dungang Gu

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(19), P. 8331 - 8331

Published: Sept. 25, 2024

Polyvinyl chloride (PVC) resins are widely used in modern society due to their acid and alkali resistance, low cost, strong insulation properties. However, the high chlorine (Cl) content PVC poses significant challenges for its recycling. This study reviews treatment processes, model construction, economic environmental assessments construct a methodological framework sustainable development of emerging dechlorination technologies. In terms this summarizes three types pretreatment, simultaneous during chemical recycling, product purification, emphasizes necessity from systematic perspective. Additionally, construction models processes is investigated laboratory industrial production system macro-scale material, order evaluate potential inventory data material metabolism behaviors. review also summarized methodology Techno-Economic Analysis (TEA) Life Cycle Assessment (LCA), which can be applied evaluation performance processes. Overall, provides readers with comprehensive perspective on state-of-the-art technologies, meanwhile offering guidance future research applications recycling waste.

Language: Английский

Citations

4

Degradation of polyvinyl chloride (PVC) microplastics employing the actinobacterial strain Streptomyces gobitricini DOI

Fuád Ameén,

Hind A. AL-Shwaiman,

Rania Almalki

et al.

Biodegradation, Journal Year: 2025, Volume and Issue: 36(1)

Published: Feb. 1, 2025

Language: Английский

Citations

0