We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Recent Advances in Nanoscale Zero-Valent Iron (nZVI)-Based Advanced Oxidation Processes (AOPs): Applications, Mechanisms, and Future Prospects
ClearMini review on the application research of nanoscale zero valent iron in water treatment
This mini-review covers nanoscale zero valent iron (nZVI) particles as tools for environmental pollution control, capable of adsorbing and chemically reducing heavy metals and organic contaminants in water. These nanomaterials are also being explored for microplastic removal and the breakdown of plastic-associated chemical pollutants in water treatment.
Environmental remediation approaches by nanoscale zero valent iron (nZVI) based on its reductivity: a review
This review covers how nanoscale zero-valent iron particles can be used to clean up contaminated wastewater through chemical reduction of pollutants like heavy metals and organic compounds. While not directly about microplastics, these remediation technologies are relevant because they represent advanced approaches to treating the kinds of contaminated water that often also contains microplastic pollution.
How Do Micro‐ and Nanoplastics (MNPs) Affect Contaminant Removal by Nano Zero‐Valent Iron (nZVI) in Water and Soil?: A Review
This review examines how microplastics and nanoplastics interfere with nano zero-valent iron (nZVI), a widely used material for cleaning up contaminated groundwater and soil, finding that plastic particles typically reduce nZVI's effectiveness by clogging reactive sites and causing premature aging. The finding matters because it suggests that microplastic contamination at remediation sites could undermine cleanup efforts for other pollutants like heavy metals and organic compounds, requiring modified iron formulations (such as sulfidated nZVI) to maintain performance.
Enhanced Mechanism of Nano Zero-Valent Iron Activated Persulfate for Persistent Organic Pollutants in the Environment
This review covers how nano zero-valent iron activates persulfate to generate sulfate radicals capable of degrading persistent organic pollutants in contaminated environments. The approach is an advanced oxidation process with potential applications in remediating soils and water affected by industrial chemicals.
Sulfidated Nanoscale Zero-Valent Iron (S-nZVI) Facilitates Remediation and Safe Crop Production in Cr(VI) and Microplastics Co-contaminated Soil
Researchers tested sulfidated nanoscale zero-valent iron as a way to clean up agricultural soil contaminated with both chromium and microplastics. The treatment effectively reduced toxic chromium levels and helped trap microplastics, making it safer to grow crops in the contaminated soil. The study offers a promising approach for addressing the growing problem of combined heavy metal and microplastic contamination in farmland.
The influence of various microplastics on PBDEs contaminated soil remediation by nZVI and sulfide-nZVI: Impedance, electron-accepting/-donating capacity and aging
PVC, PS, and PP microplastics in contaminated soil inhibited the degradation of the brominated flame retardant BDE209 by nano-zero-valent iron and sulfided nZVI to varying degrees, with inhibition linked to microplastic impedance and electron-accepting capacity, while microplastics themselves showed aging and fragmentation during the remediation process.
Driving synergistic Fe-N-Plastic co-metabolism and functional microbial symbiosis via nZVI@RA for enhanced decontamination in constructed wetlands
Researchers developed a recycled aggregate-supported nano-zero valent iron material (nZVI@RA) and demonstrated that it profoundly reshapes microbial communities in constructed wetlands to enhance synergistic iron, nitrogen, and nanoplastic co-metabolism, improving simultaneous decontamination performance.
Recent advances and challenges in advanced oxidation processes for degradation of nano- and microplastics in water: a critical review
This critical review evaluates four main advanced oxidation processes — ozonation, photocatalysis, Fenton reactions, and electrochemical oxidation — for breaking down nano- and microplastics in water, summarizing what has been achieved and where major technical gaps remain. Developing effective degradation technologies is urgently needed because conventional water treatment systems do not reliably remove small plastic particles.
Nanotechnology for Environmental Remediation: Challenges, Opportunities, and Future Directions in Pollution Control
This review examines how nanomaterials — including zero-valent iron nanoparticles, carbon nanotubes, graphene oxide, and nanocatalysts — are being applied in environmental remediation to remove heavy metals, organic contaminants, pathogens, and volatile organic compounds from soil, water, and air. The authors highlight that nanomaterials outperform conventional cleanup methods by acting at the molecular level, while also addressing scalability and regulatory challenges.
Improved Delivery of Nanoscale Zero-Valent Iron Particles and Simplified Design Tools for Effective Aquifer Nanoremediation
This paper is not about microplastics; it presents laboratory tests and modeling tools for injecting nanoscale zero-valent iron (nZVI) particles into contaminated aquifers for groundwater remediation.
Advanced Oxidation Processes (AOPs) for the Degradation of Micro and Nano Plastic
This review assesses advanced oxidation processes (AOPs) — including photocatalysis, ozone treatment, electrocatalysis, and Fenton reactions — as methods to break down micro- and nanoplastics in water. While AOPs can degrade plastic particles, most currently achieve only modest levels of complete mineralization, meaning significant plastic residues often remain. The study highlights the need to optimize and potentially combine these techniques to develop effective water treatment solutions for removing nanoplastics from drinking water and wastewater.
Research Progress on the Degradation of Organic Pollutants in Water by Activated Persulfate Using Biochar-Loaded Nano Zero-Valent Iron
This review summarizes research on using biochar loaded with nano zero-valent iron to activate persulfate for degrading organic pollutants in water. Researchers found that combining biochar's adsorption capacity with the catalytic activity of nano zero-valent iron produces a synergistic effect that enhances pollutant removal. The study highlights this approach as a promising technology for water treatment and environmental remediation.
Synergetic Interactions of Nanoscale Zero-Valent Iron (nZVI) and Anaerobic Bacteria in Groundwater Remediation: A Review
This review examines how combinations of zero-valent iron nanoparticles and anaerobic bacteria can work together to break down halogenated organic compounds and heavy metals that contaminate groundwater from industrial activities. This synergistic bioremediation approach offers promise as a more effective and cost-efficient alternative to conventional groundwater cleanup methods.
Heavy metal remediation by nano zero-valent iron in the presence of microplastics in groundwater: Inhibition and induced promotion on aging effects
Researchers found that microplastics in groundwater significantly influenced the performance of nano zero-valent iron used for heavy metal remediation, with some microplastic types inhibiting and others promoting the aging and reactivity of the nanomaterial depending on polymer type and concentration.
Iron‐Based Catalysts for the Removal of Microplastics
This review evaluates the potential of iron-based catalysts for degrading microplastics in water through photocatalytic, Fenton, and electrocatalytic approaches. Researchers highlight the advantages of iron's abundance, low toxicity, and catalytic versatility for generating reactive oxygen species that can break down plastics. The study identifies challenges including scalability and catalyst recovery while recommending interdisciplinary collaboration to advance iron-based remediation solutions.
Current Approaches and Challenges in Advanced Oxidation Processes for Nanoplastic Degradation
This review evaluates current methods for breaking down nanoplastics in water, including ozonation, electrochemical treatment, photocatalysis, and plasma-based processes. Researchers found that while these advanced oxidation techniques show promise, significant gaps remain in treating plastic particles smaller than one micrometer. The study highlights the urgent need for better analytical methods and more effective treatment technologies to address nanoplastic pollution in water sources.
Application of advanced oxidation processes for the removal of micro/nanoplastics from water: A review
This review summarizes methods for breaking down and removing microplastics and nanoplastics from water using advanced chemical processes that generate powerful cleaning agents like hydroxyl radicals. While these methods can shrink and partially degrade plastic particles, they cannot yet fully break them down, meaning some residue remains. The research is important for developing better water treatment systems that could reduce human exposure to microplastics through drinking water.
Advanced oxidation processes for the elimination of microplastics from aqueous systems: Assessment of efficiency, perspectives and limitations
This review evaluates advanced oxidation processes as a strategy for breaking down microplastics in water systems, comparing techniques such as photocatalysis, Fenton reactions, and ozonation. Researchers found that while these methods show promise for degrading microplastics into smaller, less harmful molecules, challenges remain in scaling them for practical use. The study identifies key limitations and suggests directions for making these technologies more efficient and applicable to real-world water treatment.
Improved Cadmium Removal Induced by Interaction of Nanoscale Zero-Valent Iron and Microplastics Debris
Researchers investigated how PVC microplastics interact with nanoscale zero-valent iron used to remove cadmium from contaminated water. The presence of microplastics actually enhanced cadmium removal, likely due to adsorption on the plastic surface. These findings are relevant because PVC production uses cadmium compounds, meaning both pollutants may co-occur in real environments.
Deciphering theRole of Heavy Metals in Zero-ValentIron-Driven Dechlorination of PVC Microplastics under Mild Condition
Researchers demonstrated that nanoscale zerovalent iron can effectively dechlorinate PVC microplastics under mild anaerobic conditions, with heavy metals playing a critical modulating role — nickel and copper promoted dechlorination while chromium significantly inhibited it. The dechlorination efficiency ranking of Ni > Cu > Co > Cr reflects differences in electron transfer promotion and active iron phase formation.
Engineering functional nanocomposites for enhanced AOP-mediated microplastic mineralization: From mechanistic insights to water remediation strategies
This review examines how advanced oxidation processes such as photocatalysis, Fenton reactions, and electrocatalysis can be used to break down microplastics in water. Researchers evaluated the strengths and limitations of each technique and explored how functional nanomaterials can enhance degradation performance. The study highlights promising directions for developing scalable water treatment solutions to address microplastic contamination.
Nanoremediation: A New and Emerging Technology
This chapter reviews nanoremediation -- the use of engineered nanoparticles to clean up contaminated soil and water -- and notes that nano- and microplastic pollution is an emerging contaminant that these technologies could help address. The author discusses how carbon nanotubes, zero-valent iron, and magnetic nanoparticles can remove organic pollutants and metals, and suggests these same approaches may have promise for removing microplastics from the environment. The technology is still in early stages and relatively expensive.
Magnetite, Hematite and Zero-Valent Iron as Co-Catalysts in Advanced Oxidation Processes Application for Cosmetic Wastewater Treatment
Researchers tested iron-based catalysts (magnetite, hematite, and zero-valent iron) in advanced oxidation processes for treating cosmetic wastewater. Effective treatment of cosmetic wastewater is important for reducing chemical pollutants and microplastics from personal care products that enter aquatic environments.
Current Approaches and Challenges in Advanced Oxidation Processes for Nanoplastic Degradation
This review examined advanced oxidation processes as techniques for breaking down nanoplastics, including ozonation, electrochemical, photocatalytic, and plasma-based methods. Researchers found that while these approaches show promise for nanoplastic remediation, significant gaps remain in understanding their effectiveness on different plastic types and sizes. The study highlights the need for more standardized research to develop scalable solutions for nanoplastic pollution.