We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Micro‐ and Nano‐Plastic Pollution
Summary
Researchers review the growing global threat of micro- and nanoplastics — plastic particles ranging from 0.1mm down to 100 nanometers — exploring how they bind to toxic chemicals as they travel through the environment and how emerging photocatalytic technologies using sunlight could offer sustainable new ways to break them down.
Plastic is an artificially produced synthetic polymer synthesized through a process referred to as cracking.Upon infiltrating the environment, plastic waste is gradually split down into smaller particles known as micro-plastics (MPs, with size ranging from 0.1 to 5 mm) and nano-plastics (NPs, which range in size from 1 to 100 nm), together we call these micro-nano-plastics (MNPs).However, MNP particles are highly complex and detailed in their shape, size, density, polymer structure, surface properties, etc.While particle concentrations across various media can differ by as many as ten orders of magnitude, examining such intricate samples can be comparable to searching for a needle in a haystack.MNPs have recently been identified as a significant global environmental pollutant.Studies indicate that as particles travel through the environment, their functional groups bind to organic pollutants such as heavy metals and persistent poisonous chemicals.Advancing eco-friendly plastic conversion technologies is vital for transitioning to a sustainable, less plastic-dependent future.As a result, in recent times, efforts have been undertaken to incorporate nanomaterials and nanostructures into photocatalytic plastic degradation on the basis of developments in smart material technology using simple photocatalysts.Compared to conventional methods, photodegradation of MNPs can offer a more sustainable alternative for waste plastic reprocessing, as it utilizes solar energy as an energy source and operates at room temperature and pressure.Current efforts focus on the strategic design and surface modification to accomplish smart materials able to capture, transport and disperse MPs with varying shapes and chemical compositions.Catalytic materials used in photocatalysis show significant potential for degrading common plastics.As a result, recent advancements in these small, self-moving equipment are anticipated to drive a major breakthrough in environmental rehabilitation.
Sign in to start a discussion.
More Papers Like This
Global challenges in microplastics: From fundamental understanding to advanced degradations toward sustainable strategies
This review examined global challenges in microplastic research — from environmental entry pathways and fate to human health impacts — and discussed potential degradation strategies, concluding that a combination of photocatalysis, biodegradation, and policy measures will be needed for sustainable management.
Micro- and Nano-Plastics Contaminants in the Environment: Sources, Fate, Toxicity, Detection, Remediation, and Sustainable Perspectives
This review provides a broad overview of micro- and nanoplastic pollution, covering where these particles come from, how they spread through the environment, and the damage they cause to living things including humans. The authors also compare different methods for removing microplastics from the environment, including physical, chemical, and biological approaches. The paper calls for more research and global cooperation to develop better tools for measuring the health risks of plastic pollution.
Degradation of Micro- and Nano-Plastics by Photocatalytic Methods
This paper reviews photocatalytic methods — using light-activated catalysts — as a way to break down micro- and nano-plastics in the environment. These approaches offer a promising path toward degrading persistent plastic particles that accumulate in marine and drinking water systems.
Photocatalytic Technologies for Transformation and Degradation of Microplastics in the Environment: Current Achievements and Future Prospects
This review examines photocatalytic technologies that use light-activated materials to break down microplastics in the environment. Various catalysts can generate reactive oxygen species that degrade plastic polymers into simpler, less harmful molecules. The authors assess the strengths and limitations of different photocatalytic approaches and highlight the need for scalable solutions that work under real-world environmental conditions.
Plastic Waste as a Challenge Cannot Be Ignored: Characteristics, Sources, Impacts, and Unveiling Potential Solutions through Photocatalysis for Environmental Sustainability
This review examines the sources, characteristics, and environmental impacts of plastic waste, including how plastics degrade into micro- and nano-sized particles that spread through air, water, and soil. Researchers highlight photocatalysis as a promising green technology for breaking down plastic waste and potentially converting it into useful products. The study emphasizes that plastic pollution threatens both ecosystems and human health through food chain contamination and direct chemical exposure.