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61,005 resultsShowing papers similar to Removal of norfloxacin by combining persulfate with nano zero-valent iron modified by activated carbon and copper nanocomposite
ClearEnhanced 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.
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.
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.
Removal of Ciprofloxacin from Wastewater by Ultrasound/Electric Field/Sodium Persulfate (US/E/PS)
Researchers developed an ultrasound-enhanced electro-activated persulfate system for removing the antibiotic ciprofloxacin from wastewater, achieving effective degradation through combined oxidation processes involving sulfate and hydroxyl radicals.
Preparation of Sepiolite Nanofibers Supported Zero Valent Iron Composite Material for Catalytic Removal of Tetracycline in Aqueous Solution
Researchers developed a sepiolite nanofiber-supported zero-valent iron composite for catalytic removal of tetracycline from water, offering an efficient and environmentally friendly approach to degrading antibiotic contaminants that accumulate in aquatic environments.
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.
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.
Green synthesis of iron (III) oxide (Fe3O4) Nanoparticles Using Citrus sinensis Peel Extract for the Removal of Ciprofloxacin in Water
Researchers created iron oxide nanoparticles using orange peel extract and tested their ability to remove the antibiotic ciprofloxacin from water. The study suggests this green synthesis approach achieved up to 97% removal efficiency, offering a low-cost, eco-friendly method for cleaning antibiotic contamination from water sources.
Peroxymonosulfate activation by microplastics coagulated sludge-derived iron-carbon composite for effective degradation of tetracycline hydrochloride: Performance and mechanism
This study used a one-step pyrolysis method to convert microplastic-containing coagulated sewage sludge into an iron-carbon composite, which was then used to activate peroxymonosulfate for degrading tetracycline hydrochloride. The approach simultaneously addressed microplastic waste disposal and antibiotic contamination removal.
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.
Norfloxacin removal by ultraviolet-activated sodium percarbonate and sodium hypochlorite: process optimization and anion effect
This paper is not about microplastics; it evaluates UV-activated chemical processes for removing the antibiotic norfloxacin from water.
Sustainable functionalized smectitic clay-based nano hydrated zirconium oxides for enhanced levofloxacin sorption from aqueous medium
Researchers developed a functionalized smectitic clay-based nano hydrated zirconium oxide composite for removing the antibiotic levofloxacin from water, achieving high adsorption capacity through a sustainable and reusable nanomaterial approach.
Epsilon-MnO2 simply prepared by redox precipitation as an efficient catalyst for ciprofloxacin degradation by activating peroxymonosulfate
Researchers prepared four types of manganese oxide catalysts and found that epsilon-MnO2 was most effective at activating peroxymonosulfate to degrade the antibiotic ciprofloxacin from water. Advanced oxidation processes used to remove pharmaceuticals from water are also being evaluated for breaking down microplastics and their associated chemical pollutants.
Elimination of chloramphenicol through electro-fenton-like reaction: Reaction mechanism and electron transfer pathway
An electro-Fenton-like process using peroxymonosulfate activation was developed to degrade the antibiotic chloramphenicol, achieving complete removal within 16 minutes with a kinetic rate constant of 0.089 per minute and low energy consumption of 25.1 kWh per cubic meter.
Preparation of a series of highly efficient porous adsorbent PGMA- N and its application in the co-removal of Cu(II) and sulfamethoxazole from water
Researchers synthesized a series of porous polymer adsorbents and tested their ability to simultaneously remove copper ions and the antibiotic sulfamethoxazole from water. Multi-contaminant removal materials address the reality that microplastic-contaminated water often contains heavy metals and pharmaceuticals as co-pollutants.
Preparation of a Series of Highly Efficient Porous Adsorbent PGMA-N Molecules and Its Application in the Co-Removal of Cu(II) and Sulfamethoxazole from Water
This paper is not about microplastics; it describes a porous polymer adsorbent material (PGMA-N) designed to simultaneously remove copper ions and the antibiotic sulfamethoxazole from water.
Effective Adsorption of Chlorinated Polyfluoroalkyl Ether Sulfonates from Wastewater by Nano-Activated Carbon: Performance and Mechanisms
Three nano-activated carbons were evaluated for adsorption of chlorinated polyfluoroalkyl ether sulfonates (F-53B) from electroplating wastewater, with the best-performing carbon achieving high removal efficiency for these persistent toxic compounds.
Controlled carbonization of microplastics loaded nano zero-valent iron for catalytic degradation of tetracycline
Researchers converted microplastics into a porous carbon support for nano zero-valent iron catalyst using controlled molten salt carbonization, increasing carbon yield from 18% to 52% and surface area from 404 to 602 square meters per gram. The resulting catalyst degraded 82% of tetracycline within 10 minutes via hydroxyl radical generation and also effectively degraded other persistent organic pollutants.
Norfloxacin removal efficiency by a carbon filtration column under the influence of nanoplastics: mechanistic analysis and prediction model
Researchers designed experiments to examine how nanoplastics influence norfloxacin removal efficiency in activated carbon filtration columns used in drinking water treatment, developing a mechanistic analysis and predictive model for antibiotic leakage risk when nanoplastics act as carriers in the filtration system.
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.
Enhanced the interaction of biodegradable microplastics with tetracycline by persulfate oxidation process
Researchers studied how persulfate-based oxidation processes affect the adsorption of tetracycline onto biodegradable microplastics, finding that oxidative treatment altered the surface chemistry of the plastics and significantly enhanced their ability to bind this common antibiotic.
Mechanism of norfloxacin transformation by horseradish peroxidase and various redox mediated by humic acid and microplastics
Researchers explored how the enzyme horseradish peroxidase combined with natural redox mediators can transform the antibiotic norfloxacin in water, with microplastics and humic acid affecting the process. Certain plant-derived compounds enhanced antibiotic breakdown while microplastics slightly inhibited the reaction. This has implications for removing pharmaceutical pollutants from wastewater.
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.
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.