4.7 Article

Optimization of Lead and Diclofenac Removal from Aqueous Media Using a Composite Sorbent of Silica Core and Polyelectrolyte Coacervate Shell

Related references

Note: Only part of the references are listed.
Article Polymer Science

Chitosan/polyethyleneimine magnetic hydrogels for adsorption of heavy metal ions

Zhi Chen et al.

Summary: Polyethyleneimine-modified chitosan magnetic hydrogel prepared through a chemical co-precipitation method showed good adsorption properties for heavy metal wastewater, with high removal rates for Pb2+, Ni2+, and Cu2+ ions. The magnetic hydrogel can be reused and has broad application prospects as an adsorbent.

IRANIAN POLYMER JOURNAL (2022)

Article Environmental Sciences

Shaping polyelectrolyte composites for heavy metals adsorption from wastewater: Experimental assessment and equilibrium studies

Irina Morosanu et al.

Summary: The design of core/shell composite microparticles for loading/release of organic/inorganic pollutants in wastewater treatment is an important area of research. A new approach that allows for higher organic shell amounts in a single deposition step with less material and energy consumption and without the formation of toxic by-products has been presented in this study. The study also investigated the effects of deposition method, polyanion nature, and crosslinking ratio on the sorption performance of the composite sorbents.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

Article Polymer Science

Ordered Mesoporous Silica Prepared in Different Solvent Conditions: Application for Cu(II) and Pb(II) Adsorption

Ana-Maria Putz et al.

Summary: In this study, the synthesis conditions of ordered mesoporous silica of MCM-41 type were varied to improve its morphology. The addition of 2-methoxyethanol as a co-solvent to ethanol resulted in an increase in pore wall thickness and a decrease in particle size. The materials exhibited well-ordered mesoporous structures at all synthesis conditions at room temperature. These materials with ordered porosity and high specific surfaces are suitable for applications as adsorbents in environmental remediation.
Article Chemistry, Applied

Artificial neural network and response surface methodology modeling for diclofenac removal by quaternized mesoporous silica SBA-15 in aqueous solutions

Jin-Kyu Kang et al.

Summary: The study showed the effectiveness of quaternary ammonium-functionalized mesoporous silica SBA-15 (q-SBA-15) in removing the non-steroidal anti-inflammatory drug Diclofenac (DCF) from aqueous solutions. By using multi-parameter experiments and modeling methods, optimal treatment conditions were determined for DCF removal.

MICROPOROUS AND MESOPOROUS MATERIALS (2021)

Article Biochemistry & Molecular Biology

Efficient Removal of Pb(II) from Aqueous Medium Using Chemically Modified Silica Monolith

Ashraf Ali et al.

Summary: Chemically modified silica monolith particles were prepared for the adsorptive removal of lead (II) ions from aqueous medium. The adsorbent showed an adsorption capacity of 792 mg/g for Pb(II) ions, with a 98% adsorption rate under optimal conditions of pH 5, 0.4 g/L adsorbent dose, 500 mg/L Pb(II) ion concentration, and 1 hour adsorption time. The adsorption data fitted well with Freundlich and Langmuir isotherm models, and the adsorption process followed a pseudo second-order kinetic model, suggesting spontaneous and exothermic adsorption.

MOLECULES (2021)

Article Environmental Sciences

Decorating graphene oxide with zeolitic imidazolate framework (ZIF-8) and pseudo-boehmite offers ultra-high adsorption capacity of diclofenac in hospital effluents

Payam Arabkhani et al.

Summary: This study presents a novel magnetic nanocomposite based on graphene oxide for efficient removal of pharmaceuticals from water. Response Surface Methodology was used to optimize the adsorption process, achieving exceptional adsorption efficiency. The regeneration of the nanocomposite was confirmed, showing stability in consecutive cycles.

CHEMOSPHERE (2021)

Article Engineering, Environmental

Elimination of lead from multi-component lead-nickel-cadmium solution using hyper-cross-linked polystyrene: Experimental and RSM modeling

Hadiseh Masoumi et al.

Summary: In this study, hyper-cross-linked polymer (HCP) was synthesized as an adsorbent for removing metallic particles from multi-component systems, with response surface methodology (RSM) used to optimize lead ion uptake capacity. Different isotherm equations were tested, with Freundlich and Langmuir models found to be the best for lead, cadmium, and nickel ions. The optimal conditions for maximizing lead uptake capacity were determined, and the mechanism of multicomponent separation behavior was investigated.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2021)

Article Engineering, Chemical

Influence of important parameters on the adsorption of diclofenac sodium by an environmentally friendly eucalyptus wood biochar and optimization using response surface methodology

Renata Tremea et al.

Summary: Diclofenac sodium, a widely prescribed pharmaceutical, poses a global concern due to its ecotoxicity and potential harm to public health and the environment when released into water bodies. Eucalyptus wood biochar (EWB) was found to be a promising and low-cost adsorbent for the removal of diclofenac sodium (DFS) through monolayer adsorption. The study demonstrated that EWB had a high adsorption capacity, with optimal conditions leading to a maximum removal rate of 42.08 mg/g within 6 hours.

DESALINATION AND WATER TREATMENT (2021)

Review Environmental Sciences

Recent trends on numerical investigations of response surface methodology for pollutants adsorption onto activated carbon materials: A review

Zakaria Anfar et al.

CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2020)

Article Biochemistry & Molecular Biology

Fabrication of cross-linked chitosan beads grafted by polyethylenimine for efficient adsorption of diclofenac sodium from water

Yuqing Lu et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

Review Engineering, Environmental

Guidelines for the use and interpretation of adsorption isotherm models: A review

Mohammad A. Al-Ghouti et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Article Engineering, Environmental

Diclofenac sorption from synthetic water: Kinetic and thermodynamic analysis

Stefano Salvestrini et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2020)

Article Engineering, Chemical

Adsorptive removal of diclofenac by graphene oxide: Optimization, equilibrium, kinetic and thermodynamic studies

Billie Yan Zhang Hiew et al.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2019)

Article Engineering, Environmental

Removal of sodium diclofenac from aqueous solution by adsorbents derived from cocoa pod husks

Mark Daniel G. de Luna et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2017)

Article Biotechnology & Applied Microbiology

Response surface modeling and optimization of major medium variables for glycolipopeptide production

Maurice Ekpenyong et al.

BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY (2017)

Article Chemistry, Inorganic & Nuclear

Synthesis and Characterization of Coordination Behavior of Diclofenac Sodium Drug Toward Hg(II), Pb(II), and Sn(II) Metal Ions: Chelation Effect on Their Thermal Stability and Biological Activity

Moamen S. Refat et al.

SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY (2014)

Review Engineering, Environmental

The use of response surface methodology for modelling and analysis of water and wastewater treatment processes: a review

Abhilash T. Nair et al.

WATER SCIENCE AND TECHNOLOGY (2014)

Article Chemistry, Physical

Kinetic models of sorption: a theoretical analysis

S Azizian

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2004)