Hybrid composite sorbents based on SiO2/PLGA for Fe(III) ions removal

Kyshkarova, Viktoriia; Behunova, Dominika Marcin; Václavíková, Miroslava; Melnyk, Inna V.

doi:10.1007/s13204-021-01857-w

Cited by 2 publications

(2 citation statements)

References 40 publications

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“…It can be suggested that the polymer was probably co‐precipitated with silica particles or partially covered the silica particles with a thin layer through the formation of H‐bonding between the surface silanol groups from silica and the carboxyl groups from the polymer. This statement can be confirmed by the absence of the bands corresponding to free −OH groups in the 3700–3500 cm −1 range and the presence of the band at ~1174 cm −1 assigned to the ≡Si‐OR groups only in the SiO 2 /SAC‐1 sample spectra; it can also be confirmed by the co‐condensation between two components in the materials where R is −C(O)−O−R′ [42] …”

Section: Resultsmentioning

confidence: 63%

“…This statement can be confirmed by the absence of the bands corresponding to free À OH groups in the 3700-3500 cm À 1 range and the presence of the band at ~1174 cm À 1 assigned to the �Si-OR groups only in the SiO 2 /SAC-1 sample spectra; it can also be confirmed by the co-condensation between two components in the materials where R is À C-(O)À OÀ R'. [42] The surface morphology of the materials was examined using scanning electron microscopy (SEM), and the SEM images are given in Figure 4. The obtained composites consist of particles of irregularly shaped aggregates.…”

Section: Characterisation Of the Synthesised Materialsmentioning

confidence: 99%

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Novel Synthesis Strategy for the Use of Silica‐Based Composites Modified With Styrene‐Acrylic Copolymer as High‐Performance Adsorbents for Cationic Dyes Removal From Aqueous Environment

et al. 2023

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Adsorption is a reliable method for removing organic pollutants from water. This article provides data on the use of hybrid composites as adsorbents for Methylene Blue (MB) and Rhodamine 6G (R6G) uptake from aqueous solutions. The organo‐inorganic spherical particles were prepared using tetraethyl orthosilicate and a styrene‐acrylic copolymer through a one‐pot sol‐gel technique. The powder structures were characterised using various methods, including elemental analysis, acid‐base titration, zeta potential measurement, IR spectroscopy, thermogravimetric analysis, low‐temperature nitrogen adsorption, and scanning electron microscopy. The results revealed that the adsorption process demonstrated a preference for a pH of 6 in the case of MB, whereas for R6G, the optimal pH for adsorption was observed to be 7. The findings indicated that the pseudo‐second‐order model accurately described the kinetic data, while the equilibrium data aligned with the Freundlich model. The maximum adsorption capacities were determined to be 212.5 mg/g for MB and 323.1 mg/g for R6G, suggesting that both chemisorption and physical adsorption occurred on the surface of the adsorbent material. The composites were found to be regenerable with an HCl:EtOH mixture up to 3 cycles. These findings suggest that silica/styrene‐acrylic copolymer composites are promising sorbents for removing MB and R6G dyes from aqueous solutions.

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Section: Resultsmentioning

confidence: 63%

Section: Characterisation Of the Synthesised Materialsmentioning

confidence: 99%

Novel Synthesis Strategy for the Use of Silica‐Based Composites Modified With Styrene‐Acrylic Copolymer as High‐Performance Adsorbents for Cationic Dyes Removal From Aqueous Environment

et al. 2023

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Biopolymeric Nanocomposites for Wastewater Remediation: An Overview on Recent Progress and Challenges

Annu,

Mittal,

Tripathi

et al. 2024

Polymers

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Essential for human development, water is increasingly polluted by diverse anthropogenic activities, containing contaminants like organic dyes, acids, antibiotics, inorganic salts, and heavy metals. Conventional methods fall short, prompting the exploration of advanced, cost-effective remediation. Recent research focuses on sustainable adsorption, with nano-modifications enhancing adsorbent efficacy against persistent waterborne pollutants. This review delves into recent advancements (2020–2023) in sustainable biopolymeric nanocomposites, spotlighting the applications of biopolymers like chitosan in wastewater remediation, particularly as adsorbents and filtration membranes along with their mechanism. The advantages and drawbacks of various biopolymers have also been discussed along with their modification in synthesizing biopolymeric nanocomposites by combining the benefits of biodegradable polymers and nanomaterials for enhanced physiochemical and mechanical properties for their application in wastewater treatment. The important functions of biopolymeric nanocomposites by adsorbing, removing, and selectively targeting contaminants, contributing to the purification and sustainable management of water resources, have also been elaborated on. Furthermore, it outlines the reusability and current challenges for the further exploration of biopolymers in this burgeoning field for environmental applications.

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Hybrid composite sorbents based on SiO2/PLGA for Fe(III) ions removal

Cited by 2 publications

References 40 publications

Novel Synthesis Strategy for the Use of Silica‐Based Composites Modified With Styrene‐Acrylic Copolymer as High‐Performance Adsorbents for Cationic Dyes Removal From Aqueous Environment

Novel Synthesis Strategy for the Use of Silica‐Based Composites Modified With Styrene‐Acrylic Copolymer as High‐Performance Adsorbents for Cationic Dyes Removal From Aqueous Environment

Biopolymeric Nanocomposites for Wastewater Remediation: An Overview on Recent Progress and Challenges

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