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61,005 resultsShowing papers similar to Carbonized Waste Cation Exchange Resinwith Fe Doping for Persulfate Activationand Oxytetracycline Degradation:Performance and Mechanism
ClearModi-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.
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.
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.
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.
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.
Efficient tetracycline hydrochloride degradation via peroxymonosulfate activation by N doped coagulated sludge based biochar: Insights on the nonradical pathway
Researchers found a way to repurpose waste sludge from microplastic removal processes by converting it into a nitrogen-doped carbon material that can break down the antibiotic tetracycline in water. The recycled material performed well across a wide pH range and worked primarily through a nonradical pathway to degrade the antibiotic. The study offers a dual benefit approach that addresses both microplastic waste management and antibiotic contamination in water systems.
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.
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.
Catalytic Ozonation of Sulfachloropyridazine Sodium by Diatomite-Modified Fe2O3: Mechanism and Pathway
This study developed diatomite-modified Fe2O3 as a catalyst for ozonation of the antibiotic sulfachloropyridazine sodium, achieving high degradation efficiency and identifying the reactive oxygen species responsible for pollutant breakdown.
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.
Tetracycline Removal from Water by Adsorption on Geomaterial, Activated Carbon and Clay Adsorbents
New geomaterial adsorbents made from clay, activated carbon, cement, and PVA polymer were synthesized and tested for tetracycline removal from water, achieving rapid equilibrium within 30 minutes and high adsorption capacity that was pH-dependent, offering a low-cost option for antibiotic contamination removal in wastewater treatment applications.
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.
Investigation into the Synergistic Effect of the Zinc Peroxide/Peroxymonosulfate Double-Oxidation System for the Efficient Degradation of Tetracycline
Researchers developed a zinc peroxide and peroxymonosulfate double-oxidation system for degrading tetracycline antibiotics, finding that 10 mg ZnO2 and 30 mg PMS could degrade 82.8% of tetracycline in a 100 mL, 50 mg/L solution with high adaptability across pH 4-12 and temperatures 2-40 degrees Celsius. Quenching experiments and electron paramagnetic resonance confirmed that singlet oxygen was the primary reactive species, and three degradation pathways were identified through intermediate analysis.
A Review on Application of Biochar in the Removal of Pharmaceutical Pollutants through Adsorption and Persulfate-Based AOPs
This review examined the application of biochar for removing pharmaceutical pollutants from water through adsorption and persulfate-based advanced oxidation processes, highlighting biochar's strong adsorption capacity, low cost, and effectiveness as a catalyst for activating persulfate.
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.
Enhanced Tetracycline Removal from Water through Synergistic Adsorption and Photodegradation Using Lignocellulose-Derived Hydrothermal Carbonation Carbon
Researchers synthesized hydrothermal carbonation carbon (HTCC) from three lignocellulose components — cellulose, hemicellulose, and lignin — at temperatures of 210-290 degrees Celsius and compared their synergistic adsorption and photodegradation performance for tetracycline removal. Lignin-derived HTCC achieved the best removal efficiency at 63.5% within 120 minutes, operating through a non-radical charge-transfer photodegradation mechanism driven by surface carboxyl groups, with performance attributed to its distinct oxygenated functional group composition.
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.
Microporous carbon derived from waste plastics for efficient adsorption of tetracycline: Adsorption mechanism and application potentials
Scientists converted waste PET plastic bottles into a porous carbon material that can remove 100% of the antibiotic tetracycline from water. The material worked effectively across a wide range of water conditions and could be reused multiple times. This approach offers a double benefit: it repurposes plastic waste that would otherwise become microplastic pollution while also cleaning antibiotics from water, addressing two environmental threats at once.
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.
Biochar-layered double hydroxide composites for the adsorption of tetracycline from water. Synthesis, Process Modeling and Mechanism
Researchers developed biochar-layered double hydroxide composites to remove the antibiotic tetracycline from water, finding high adsorption efficiency through multiple interaction mechanisms. This material offers a promising approach to cleaning pharmaceutical contaminants 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.
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.
Influence of aging processes on PE microplastics with various oxidants: Morphology, chemical structure, and adsorption behavior toward tetracycline
Polyethylene microplastics aged by four different oxidants showed increased surface oxidation and hydrophilicity, with KMnO4-aged and NaOCl-aged PE showing the highest adsorption capacity for tetracycline, while persulfate-aged PE showed the lowest, demonstrating that aging chemistry significantly affects contaminant adsorption.