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61,005 resultsShowing papers similar to Enhanced Mechanism of Nano Zero-Valent Iron Activated Persulfate for Persistent Organic Pollutants in the Environment
ClearResearch 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.
Removal of norfloxacin by combining persulfate with nano zero-valent iron modified by activated carbon and copper nanocomposite
A nano zero-valent iron composite modified with activated carbon and copper was developed to activate persulfate for degrading the antibiotic norfloxacin from water, achieving high removal efficiency under optimized conditions.
Iron scrap derived nano zero-valent iron/biochar activated persulfate for p-arsanilic acid decontamination with coexisting microplastics
A biochar-loaded nano zero-valent iron material derived from iron scrap effectively degraded p-arsanilic acid via persulfate activation, and the study also examined how co-existing microplastics modified the removal efficiency of this organoarsenic pollutant.
Recent Advances in Nanoscale Zero-Valent Iron (nZVI)-Based Advanced Oxidation Processes (AOPs): Applications, Mechanisms, and Future Prospects
This review covers how tiny iron particles called nanoscale zero-valent iron (nZVI) can be used to break down organic pollutants in water through advanced chemical reactions. These methods show promise for cleaning up contaminated environments, including water sources affected by plastic-related and other industrial pollutants. The technology is cost-effective and environmentally friendly, though challenges remain in scaling it up.
Optimization of PNP Degradation by UV-Activated Granular Activated Carbon Supported Nano-Zero-Valent-Iron-Cobalt Activated Persulfate by Response Surface Method
Researchers optimized a UV-activated persulfate system using iron-cobalt nanoparticles supported on granular activated carbon for degrading p-nitrophenol, a toxic industrial wastewater pollutant, achieving high removal efficiency through response surface methodology to identify optimal operating conditions.
Overcoming the pH Dependence of Iron-Based Catalysts and Efficient Generation of High-Valent Ferrite by Constructing a Neutral Microenvironment
Researchers developed a non-homogeneous peroxymonosulfate (PMS) activation system that overcomes the pH dependence typically limiting iron-based catalysts by constructing a neutral microenvironment to efficiently generate high-valent iron-oxo species. The system achieved effective pollutant degradation across a broader pH range than conventional iron-based catalysts, offering a pathway to more practically deployable advanced oxidation processes.
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.
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.
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.
Mini 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.
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.
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.
Performance and Mechanism of Fe3O4 Loaded Biochar Activating Persulfate to Degrade Acid Orange 7
Researchers developed an iron oxide-loaded biochar material that can activate persulfate to break down acid orange 7, a common industrial azo dye pollutant, in water. The modified biochar achieved high degradation rates through a combination of adsorption and advanced oxidation processes. The study demonstrates a potential low-cost approach for treating dye-contaminated wastewater using engineered biochar materials.
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.
Carbonized Waste Cation Exchange Resinwith Fe Doping for Persulfate Activationand Oxytetracycline Degradation:Performance and Mechanism
Researchers prepared a carbonized spent cation exchange resin doped with Fe3O4 (Fe3O4@CR) to activate persulfate for degrading the antibiotic oxytetracycline, achieving 76.4% removal under optimized conditions and identifying hydroxyl radicals and sulfate radicals as the primary reactive species responsible for degradation.
Decomposition of metal-organic complexes and metal recovery in wastewater: A systematic review and meta-synthesis
Researchers systematically reviewed methods for breaking down metal-organic complexes in wastewater and recovering the metals, finding that conventional treatments fail to fully decompose these complexes and that advanced oxidation processes using hydroxyl radicals, sulfate radicals, and singlet oxygen show the most promise for decomplexation and metal recovery.
Enhanced Degradation of Deltamethrin in Water through Ferrous Ion Activated Sulfite: Efficiency and Mechanistic Insights
This paper is not about microplastic pollution. It investigates a chemical method using iron-activated sulfite to degrade deltamethrin, a widely used insecticide, in water. The study optimizes reaction conditions and identifies hydroxyl radicals as the primary mechanism for breaking down the pesticide.
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.
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.
Modi-Red Mud Loaded CoCatalyst Activated Persulfate Degradation of Ofloxacin
Researchers developed a cobalt-loaded red mud catalyst (Co-RM) for persulfate activation and investigated its degradation of the antibiotic ofloxacin, achieving 80.06% removal under optimized conditions of pH 3.0 and 40°C. Sulfate radicals were identified as the primary reactive species, and GC-MS analysis revealed the degradation intermediates and proposed pathway.
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.
Capture-reduction mechanism for promoting Cr(VI) removal by sulfidated microscale zerovalent iron/sulfur-doped graphene-like biochar composite
Researchers developed a sulfidated zerovalent iron composite with sulfur-doped biochar that enhanced chromium removal from water through a capture-reduction mechanism, overcoming the oxide passivation problem that limits conventional iron-based remediation.
Remediation of Micropalstic-heavy Metal Cocontaminated Soils Using Nanoscale Zero-valent Iron Supported on Palygorskite: Mechanisms and Effectiveness
Researchers developed a remediation approach for soils co-contaminated with microplastics and heavy metals using nanoscale zero-valent iron supported on palygorskite. The composite material effectively inhibited microplastic migration in soil and reduced heavy metal mobility, with the microplastic content in deeper soil layers remaining at only about 8% of initial levels after treatment.
Mechanistic and recent updates in nano-bioremediation for developing green technology to alleviate agricultural contaminants
Researchers reviewed nano-bioremediation — the combination of nanoparticles with microbial processes — as a promising strategy for removing heavy metals, pesticides, and other agricultural contaminants from soil and water, highlighting improved catalytic activity and adsorption capacity compared to conventional remediation methods.