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Papers
61,005 resultsShowing papers similar to Alginate/geopolymer hybrid beads as an innovative adsorbent applied to the removal of 5-fluorouracil from contaminated environmental water
ClearTetracycline 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.
Encapsulating sorptive materials and biodegrading microorganisms in composite alginate bead geomedia to capture and remove stormwater trace organics and nutrients
Researchers developed composite alginate bead geomedia encapsulating sorptive materials and plastic-biodegrading microorganisms to capture and remove microplastics from urban stormwater runoff, addressing the complex mixture of dissolved and particle-bound pollutants generated by impervious surface runoff.
Submerged membrane/adsorption hybrid process in water reclamation and concentrate management—a mini review
Researchers review how combining membrane filtration with adsorption — a process where pollutants stick to a material's surface — creates a hybrid water treatment system that outperforms either method alone. This integrated approach is particularly effective at removing hard-to-treat organic pollutants from wastewater, including trace pharmaceuticals and industrial chemicals that conventional treatment misses.
Nonylphenol Removal from Water and Wastewater with Alginate-Activated Carbon Beads
Researchers developed alginate-activated carbon (Alg-C) composite beads for adsorption of nonylphenols from aqueous media, finding 97% removal efficiency over five reuse cycles, with adsorption behavior following a pseudo-second-order kinetic model and Freundlich isotherm indicating a heterogeneous surface.
Decontamination of levofloxacin from water using a novel chitosan–walnut shells composite: linear, nonlinear, and optimization modeling
Researchers created a composite material from chitosan and walnut shells that can remove up to 94% of levofloxacin — a common antibiotic — from contaminated water, offering a low-cost, reusable approach to filtering pharmaceutical pollutants from water supplies.
Fonksiyonelleştirilmiş selüloz esaslı yenilikçi bir adsorbentin farmasötik adsorpsiyon performansının incelenmesi
Researchers synthesized and evaluated two cellulose-based adsorbents -- CAc-PPUF and CMC-HMPUF -- for removing pharmaceutical micropollutants from water, finding that both materials demonstrated affinity for the target compounds. Batch adsorption experiments showed CAc-PPUF achieved higher removal efficiency for all three tested pharmaceutical compounds compared to CMC-HMPUF.
Preparation and Application of Si@Al Adsorbents for Different Pollutants Removal from Aqueous Solution
Researchers prepared a low-cost Si@Al adsorbent from electroflocculation waste by mixing sodium silicate at a 4:1 ratio and calcining at 200 degrees Celsius, demonstrating its efficient removal of organic pollutants, antibiotics, and metal ions from aqueous solutions.
Efficient removal of diclofenac from surface water by the functionalized multilayer magnetic adsorbent: Kinetics and mechanism
Researchers developed a chitosan-based multilayer magnetic adsorbent (FCS-PD) for removing diclofenac from surface water, demonstrating efficient pharmaceutical removal through adsorption kinetics studies in both synthetic water and real surface water samples, with magnetic separation enabling practical adsorbent recovery.
Biosorption Potential of Microbial and Residual Biomass of Saccharomyces pastorianus Immobilized in Calcium Alginate Matrix for Pharmaceuticals Removal from Aqueous Solutions
Researchers synthesized and characterized two biosorbents based on Saccharomyces pastorianus yeast immobilized in calcium alginate matrices and evaluated their performance in removing the pharmaceutical ethacridine lactate from aqueous solutions, achieving removal efficiencies above 90% at pH 4.0 and fitting adsorption data to multiple isotherm models including Freundlich, Sips, and Toth.
Application of chitosan-carbon nanotube hydrogel beads composite in the removal of antibiotic compounds and perfluoroalkyl substances from aqueous solution
This study developed a chitosan-carbon nanotube hydrogel bead composite for removing antibiotics and perfluoroalkyl substances (PFAS) from water, addressing the inability of conventional wastewater treatment plants to fully eliminate these emerging contaminants.
Synthesis and characterization of electrospun-based composite for the remediation of pharmaceutical pollutants in wastewater
Researchers synthesised and characterised electrospun molecularly imprinted polymer composites designed to adsorb pharmaceutical pollutants — including NSAIDs such as naproxen and ibuprofen and antiretroviral drugs — from wastewater. The multi-template imprinted polymer demonstrated selective adsorption capacity for the target pharmaceuticals, presenting a nanotechnology-based remediation strategy for removing persistent drug contaminants from aquatic environments.
Innovations and challenges in adsorption-based wastewater remediation: A comprehensive review
Researchers reviewed how next-generation materials — including nanomaterials and AI-designed adsorbents with large surface areas and tailored pore structures — are transforming water purification by more efficiently capturing a wider range of contaminants. The review highlights that economic and regulatory barriers still need to be overcome before these advanced technologies can work at the scale of real water treatment plants.
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.
Advances in Chitosan-Based Materials for Application in Catalysis and Adsorption of Emerging Contaminants
This review covers how chitosan, a natural material derived from shellfish shells, can be used to remove emerging contaminants including microplastics, pharmaceuticals, and PFAS chemicals from water. Chitosan-based materials can be shaped into particles, membranes, and gels that effectively absorb a wide range of pollutants, offering a more sustainable alternative to conventional water treatment methods for reducing human exposure to harmful contaminants.
Removal of emerging pollutants from water using enzyme-immobilized activated carbon from coconut shell
Researchers developed an enzyme-based system using activated carbon from coconut shells to remove pharmaceutical pollutants from water. By immobilizing the enzyme laccase onto the carbon, they created a material that could break down antibiotics and other drugs more effectively than the carbon alone. The approach offers a sustainable, low-cost method for treating water contaminated with emerging pharmaceutical pollutants.
Biocatalytic strategies for the degradation of emerging micropollutants: From nanoplastics to pharmaceuticals
Researchers demonstrated that specific bacteria can break down both nanoplastics and common pharmaceuticals such as paracetamol and ibuprofen, which frequently contaminate waterways. Encasing these bacteria in alginate beads improved their stability and reusability, pointing toward practical bioremediation tools for tackling multiple classes of emerging pollutants simultaneously.
Biocatalytic strategies for the degradation of emerging micropollutants: From nanoplastics to pharmaceuticals
Researchers demonstrated that specific bacteria can break down both nanoplastics and common pharmaceuticals such as paracetamol and ibuprofen, which frequently contaminate waterways. Encasing these bacteria in alginate beads improved their stability and reusability, pointing toward practical bioremediation tools for tackling multiple classes of emerging pollutants simultaneously.
Recent advances in magnetic sodium alginate-based composites as the emerging adsorbents for wastewater treatment: A review
This review examines recent advances in magnetic sodium alginate-based composite materials as adsorbents for water contaminant removal, evaluating their effectiveness for removing heavy metals, dyes, pharmaceuticals, and microplastics from aqueous systems.
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.
Architectural design of 2D covalent organic frameworks (COFs) for pharmaceutical pollutant removal
Researchers used computer simulations to design special porous materials called covalent organic frameworks that can trap and remove pharmaceutical pollutants like antibiotics from wastewater. While focused on drug contamination rather than microplastics directly, this type of advanced filtration technology could also help remove other emerging contaminants from water supplies.
An Innovative Sorption Technology for Removing Microplastics from Wastewater
This study developed a sorption-based technology for removing microplastics from wastewater using inexpensive natural materials, demonstrating high removal efficiency suitable for deployment as a tertiary treatment stage at wastewater treatment plants or for treating process and surface water.
Eco-friendly hydrophobic ZIF-8/sodium alginate monolithic adsorbent: An efficient trap for microplastics in the aqueous environment
Scientists created an eco-friendly sponge-like material made from a metal-organic framework (ZIF-8) and seaweed-based sodium alginate that can trap microplastics from water. The material removed up to 594 milligrams of microplastics per gram of adsorbent and worked well even in real-world water samples like tap water, river water, and seawater. This type of practical, reusable filter material could help reduce the amount of microplastics reaching drinking water supplies.
Valorization of Plastic Wastes for the Development of Adsorbent Designed for the Removal of Emerging Contaminants in Wastewater
This review examines how plastic waste can be converted into adsorbent materials for removing emerging contaminants from wastewater — turning a pollution problem into a remediation solution. The approach could simultaneously reduce plastic waste and improve wastewater quality, reducing the amount of pollutants reaching drinking water sources.
Linker functionalised phosphinate metal-organic frameworks: Adsorbents for the removal of emerging pollutants
Researchers developed new phosphinate-based metal-organic frameworks as adsorbents to remove emerging contaminants from water. These materials showed improved stability in aqueous environments compared to conventional metal-organic frameworks, making them more practical for water treatment applications.