Preparation and Performance Research of Pb(II)-Imprinted Acrylonitrile-Co-Acrylic Acid Composite Material with Modified Sand Particles as Carrier

Polymers, Journal Year: 2025, Volume and Issue: 17(2), P. 229 - 229

Published: Jan. 17, 2025

Lead (Pb) is classified as a prevalent metallic pollutant, significantly impacting the ecological environment, especially human health. Consequently, it crucial to develop adsorbent materials that are environmentally friendly, cost-effective, and which possess high selectivity. This study aims fabricate Pb(II)-imprinted acrylonitrile-co-acrylic acid composite material by using modified sand particles carrier, then investigate its properties. Through pretreatment of particles, acrylonitrile acrylic were polymerized on surface Pb(II) served template ion for imprinting. A variety characterization methods used verify conduct an analysis morphology, chemical composition, pore characteristics. The adsorption efficiency this comprehensively explored, with process involving kinetics, isotherms, selective adsorption, reuse experiments. static experiments, multiple elements influencing ability towards investigated. It was demonstrated results prepared possesses rich structure excellent recognition ability. investigation kinetics in line quasi-first-order quasi-second-order kinetic models, while isotherm, obeys Langmuir model. ideal conditions pH = 7, reaching equilibrium within 105 min. Even when interfering ions present, still had selectivity Pb(II). showed saturation capability 41.83 mg·g−1, considerably surpassing non-imprinted counterpart. After being reused eight times, can maintain above 79% demonstrates potential practical application environment.

Language: Английский

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Batch Adsorption of Orange II Dye on a New Green Hydrogel—Study on Working Parameters and Process Enhancement

Gels, Journal Year: 2025, Volume and Issue: 11(1), P. 79 - 79

Published: Jan. 20, 2025

A new green hydrogel consisting of cherry stone (CS) powder and sodium alginate (SA) was synthesized through physical crosslinking. The product had a mean diameter 3.95 mm, moisture content 92.28%, bulk density 0.58 g/cm3, swelling ratio 45.10%. analyses its morphological structure functional groups by scanning electron microscopy (SEM) Fourier-transform infrared spectroscopy (FTIR) showed the successful entrapping CS in SA polymeric matrix. viability prepared as adsorbent tested towards Orange II (OII) anionic dye. influence pH, amount, contact time, initial dye concentration evaluated. Then, impact three accelerating factors (stirring speed, ultrasound exposure duration, temperature) on OII retention investigated. highest recorded removal efficiency adsorption capacity were 82.20% 6.84 mg/g, respectively. followed Elovich pseudo-second-order kinetics, adequately described Freundlich Khan isotherms, can be defined spontaneous, endothermic, random. experiments confirmed that obtained used acceptably for at least two consecutive cycles, sustaining effectiveness water decontamination.

Language: Английский

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Development and characterization of activated charcoal adsorbent derived from oak for efficient removal of methylene blue: functionality vs surface area

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

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A novel physicochemical activation method to synthesize mesopores enriched bamboo porous carbon for high-efficient adsorption of methylene blue

Microporous and Mesoporous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 113625 - 113625

Published: April 1, 2025

Language: Английский

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Fabrication of activated carbon, polyvinyl alcohol–based alginate composite beads for the removal of methylene blue

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Language: Английский

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Novel biocomposite of ionic cross-linked chitosan and acid-treated potato (Solanum tuberosum L.) peel agro-waste for highly efficient removal of methylene blue dye from water

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 289, P. 138742 - 138742

Published: Dec. 15, 2024

Language: Английский

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