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61,005 resultsShowing papers similar to Effect of pH on Adsorption of Tetracycline Antibiotics on Graphene Oxide
ClearGraphene Oxide Derived from Cassava Peel as a Potential Adsorbent for Tetracycline Removal from Aqueous Environment
Researchers synthesized graphene oxide from cassava peel using a modified Hummers technique and evaluated its performance as an adsorbent for tetracycline removal from water. Optimal conditions — 20 mg adsorbent, 10 ppm antibiotic concentration, pH 5, and 10 minutes contact time — demonstrated effective tetracycline removal, suggesting agricultural waste-derived graphene oxide as a low-cost approach to antibiotic water contamination.
A Review of the Current Research Status of Graphene for the Removal of Microplastics and Antibiotics from Water
This review assesses the potential of graphene-based materials for microplastic removal from water, evaluating adsorption mechanisms, removal efficiency across particle sizes, and scalability challenges for water treatment applications.
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.
A review on tetracycline removal from aqueous systems by advanced treatment techniques
This review covers the occurrence of tetracycline antibiotics in aquatic environments and evaluates advanced treatment technologies — including adsorption, photocatalysis, and membrane processes — for their removal, identifying the most promising approaches based on efficiency and practical scalability.
Mechanisms and factors affecting the removal of minocycline from aqueous solutions using graphene-modified resorcinol formaldehyde aerogels
Researchers developed a graphene-modified aerogel material for removing the antibiotic minocycline from water. They found that the modification significantly increased the surface area and adsorption capacity compared to the unmodified aerogel, with performance varying based on conditions like pH and contact time. The study presents a potential new tool for addressing pharmaceutical contamination in wastewater.
Effects of environmental aging on the adsorption behavior of antibiotics from aqueous solutions in microplastic-graphene coexisting systems
Researchers studied how UV aging affects the ability of microplastics to adsorb antibiotics, particularly in systems where microplastics coexist with graphene oxide. They found that aged microplastics had roughly double the antibiotic adsorption capacity of pristine microplastics, and that the presence of graphene oxide further increased adsorption by up to 336%. The findings suggest that environmentally weathered microplastics in real-world conditions may carry significantly higher loads of pharmaceutical contaminants.
Factors influencing the adsorption of antibiotics onto activated carbon in aqueous media
This review summarized factors influencing antibiotic adsorption onto activated carbon in aqueous systems, covering activated carbon surface properties, antibiotic physicochemical characteristics, pH, ionic strength, and competing organic matter. Activated carbon showed high capacity for many antibiotics but performance varied substantially with water matrix composition and carbon type.
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.
Oleic Acid-Tailored Geopolymer Microspheres with Tunable Porous Structure for Enhanced Removal from Tetracycline in Saline Water
Researchers developed metakaolin-based geopolymer microspheres modified with oleic acid to enhance tetracycline adsorption from saline water, achieving a Langmuir adsorption capacity of 645.7 mg/g at 298 K with the optimal 0.3% oleic acid formulation. The adsorption process followed pseudo-second-order kinetics and the Langmuir isotherm model, involving Van der Waals forces, electrostatic interactions, hydrogen bonding, and ion exchange, with good regeneration performance over multiple cycles.
Adsorption Capacity of Tetracycline in Solution by Cu-BTC@Carboxyl-Functionalized Carbon Nanotubes@Copper Alginate Composite Aerogel Beads
Researchers developed composite aerogel beads made from Cu-BTC metal-organic framework, carboxyl-functionalized carbon nanotubes, and copper alginate to adsorb tetracycline from sewage, systematically characterizing the adsorption performance and mechanisms of this nanomaterial composite for antibiotic removal from wastewater.
The Application of Hydroxyapatite NPs for Adsorption Antibiotic from Aqueous Solutions: Kinetic, Thermodynamic, and Isotherm Studies
Researchers synthesized hydroxyapatite nanoparticles and demonstrated their effectiveness in removing amoxicillin from aqueous solutions, characterizing the adsorption kinetics, thermodynamics, and isotherms to optimize antibiotic removal from contaminated water.
Rapid adsorption of sulfamethazine on mesoporous graphene produced from plastic waste: optimization, mechanism, isotherms, kinetics, and thermodynamics
Researchers converted high-density polyethylene plastic waste into mesoporous graphene via solvent-free pyrolysis and used it to rapidly adsorb sulfamethazine antibiotic from water, achieving high removal efficiency and demonstrating that plastic waste can be upcycled into valuable materials for wastewater treatment.
The effects of environmental conditions on the enrichment of antibiotics on microplastics in simulated natural water column
Researchers investigated how environmental ageing conditions affect the ability of microplastics to adsorb the antibiotic tetracycline, finding that pH, ionic strength, and temperature had little effect, but humic acid significantly reduced adsorption capacity. The reduction was attributed to humic acid covering plastic surfaces, altering hydrophobicity, and competing for adsorption sites via electrostatic repulsion.
Synthesis of recyclable and light-weight graphene oxide/chitosan/genipin sponges for the adsorption of diclofenac, triclosan, and microplastics
Researchers created a lightweight, recyclable sponge made from graphene oxide, chitosan, and genipin that can effectively remove microplastics and pharmaceutical contaminants from water. The sponge maintained its effectiveness through multiple reuse cycles, making it a practical and affordable water treatment option. This type of technology could help reduce human exposure to microplastics and other harmful substances in drinking water.
Significant Differences in the Effects of Nitrogen Doping on Pristine Biochar and Graphene-like Biochar for the Adsorption of Tetracycline
This study compared nitrogen doping effects on pristine biochar versus graphene-like biochar for adsorbing the antibiotic tetracycline, finding that nitrogen doping improved adsorption differently depending on the biochar's structural characteristics. The results provide guidance for designing more effective biochar adsorbents.
Sorption of oxytetracycline in particulate organic matter in soils and sediments: Roles of pH, ionic strength and temperature
Researchers studied how particulate organic matter from different soil and sediment types binds the antibiotic oxytetracycline, finding that sorption strength varied tenfold across environments and was strongly influenced by pH, calcium ion competition, and the organic carbon content of the source material.
Microplastics play a minor role in tetracycline sorption in the presence of dissolved organic matter
Researchers studied the sorption of the antibiotic tetracycline onto microplastics in the presence of dissolved organic matter, finding that dissolved organics competed strongly for binding sites on microplastics, meaning real-world conditions substantially reduce microplastic uptake of tetracycline.
Advancements in microalgae-mediated technologies for antibiotic removal from wastewater: a review
Researchers reviewed microalgae-based technologies for removing antibiotics from wastewater, examining the mechanisms of removal — including adsorption, biodegradation, photodegradation, and hydrolysis — and how microalgae perform in combination with advanced oxidation and photocatalysis systems, while identifying key operational parameters such as pH, temperature, and light intensity that influence treatment efficiency.
The role and significance of graphene oxide in the remediation of micro- and nanoplastics from the environment
This review examines how graphene oxide, a carbon-based material with a very large surface area, can be used to remove microplastics and nanoplastics from water. Graphene oxide showed impressive removal capacity for polystyrene microplastics through adsorption. The technology could be an important tool for developing more effective water treatment systems that protect people from microplastic contamination.
Sorption behavior of oxytetracycline on microplastics and the influence of environmental factors in groundwater: Experimental investigation and molecular dynamics simulation
This study examined how oxytetracycline antibiotic adsorbs onto different types of microplastics and how environmental factors such as pH, salinity, and UV exposure influence sorption behavior. The findings indicate microplastics can act as vectors transporting antibiotics through aquatic environments.
Efficient Removal of Tetracycline from Water by One-Step Pyrolytic Porous Biochar Derived from Antibiotic Fermentation Residue
Researchers developed a one-step pyrolytic porous biochar material for efficient tetracycline removal from water, achieving high adsorption capacity and demonstrating the potential of waste-derived biochar as a low-cost water treatment adsorbent.
Exploring treatment efficiency of graphene derivatives as adsorbents for removal of microplastics in water
Researchers tested three forms of graphene — graphene oxide, graphene foam, and reduced graphene oxide — as filters for removing microplastics from water, achieving removal efficiencies of up to 95% in lab conditions. Reduced graphene oxide performed best, though all three materials showed promise as next-generation water treatment adsorbents that could help tackle microplastic contamination at the source.
Resorcinol Formaldehyde Aerogels Modified with Graphene for the Removal of Minocycline Antibiotics from Aqueous Solutions: Mechanisms and Influencing Factors
This paper is not directly about microplastics; it studies graphene-modified aerogels for removing minocycline antibiotics from wastewater.
Modification of Ceramic Membranes with Carbon Compounds for Pharmaceutical Substances Removal from Water in a Filtration—Adsorption System
Researchers developed carbon-modified ceramic membranes using graphene oxide and carbon nanotubes for pharmaceutical substance removal from water, finding that the combined filtration-adsorption system significantly improved removal efficiency compared to unmodified ceramic membranes.