Coagulation-flocculation of Microcystis aeruginosa by polymer-clay based composites

Gardi, Ido; Mishael, Yael-Golda; Lindahl, Marika; Muro‐Pastor, Alicia M.; Undabeytia, Tomás

doi:10.1016/j.jclepro.2023.136356

Cited by 11 publications

(3 citation statements)

References 41 publications

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“…Solution casting can be carried out by dissolving a polymer in a suitable solvent. At the same time, other materials are dispersed in the same or different solvent before the dispersions are mixed to generate a homogeneous mixture [ 58 ]. The efficient exfoliation of the stacked clay layers using an appropriate solvent has been considered an attractive advantage for the area.…”

Section: Preparation Of Biodegradable Polymer/bentonite Nanocompositesmentioning

confidence: 99%

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Thermal, Morphological and Mechanical Properties of Multifunctional Composites Based on Biodegradable Polymers/Bentonite Clay: A Review

Mapossa,

da Silva Júnior,

de Oliveira

et al. 2023

Polymers

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The extensive use of non-biodegradable plastic products has resulted in significant environmental problems caused by their accumulation in landfills and their proliferation into water bodies. Biodegradable polymers offer a potential solution to mitigate these issues through the utilization of renewable resources which are abundantly available and biodegradable, making them environmentally friendly. However, biodegradable polymers face challenges such as relatively low mechanical strength and thermal resistance, relatively inferior gas barrier properties, low processability, and economic viability. To overcome these limitations, researchers are investigating the incorporation of nanofillers, specifically bentonite clay, into biodegradable polymeric matrices. Bentonite clay is an aluminum phyllosilicate with interesting properties such as a high cation exchange capacity, a large surface area, and environmental compatibility. However, achieving complete dispersion of nanoclays in polymeric matrices remains a challenge due to these materials’ hydrophilic and hydrophobic nature. Several methods are employed to prepare polymer–clay nanocomposites, including solution casting, melt extrusion, spraying, inkjet printing, and electrospinning. Biodegradable polymeric nanocomposites are versatile and promising in various industrial applications such as electromagnetic shielding, energy storage, electronics, and flexible electronics. Additionally, combining bentonite clay with other fillers such as graphene can significantly reduce production costs compared to the exclusive use of carbon nanotubes or metallic fillers in the matrix. This work reviews the development of bentonite clay-based composites with biodegradable polymers for multifunctional applications. The composition, structure, preparation methods, and characterization techniques of these nanocomposites are discussed, along with the challenges and future directions in this field.

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Section: Preparation Of Biodegradable Polymer/bentonite Nanocompositesmentioning

confidence: 99%

“…In addition, the production of materials using the solution casting method requires attention during the solvent removal step. If the solvent remains in the product, it may reduce the interfacial performance between the polymer and filler [ 58 , 59 ].…”

Section: Preparation Of Biodegradable Polymer/bentonite Nanocompositesmentioning

confidence: 99%

Thermal, Morphological and Mechanical Properties of Multifunctional Composites Based on Biodegradable Polymers/Bentonite Clay: A Review

Mapossa,

da Silva Júnior,

de Oliveira

et al. 2023

Polymers

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“…In addition, organic polymer particles not only have the three-dimensional nanostructure of the ionized surface of inorganic particles, but also possess the controllable charge density and flexible chains of organic polymers, which is expected to be a novel retention aid [95][96][97][98]. Taking cationic organic polymer particles as an example, Xiao H et al [99] prepared cationic organic particles by emulsifier-free emulsifier polymerization and studied their flocculation on fine clay.…”

Section: Dual-component Systemsmentioning

confidence: 99%

Spherical Polyelectrolyte Brushes as Flocculants and Retention Aids in Wet-End Papermaking

2023

Molecules

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As the criteria of energy conservation, emission reduction, and environmental protection become more important, and with the development of wet-end papermaking, developing excellent retention aids is of great significance. Spherical polyelectrolyte brushes (SPBs) bearing polyelectrolyte chains grafted densely to the surface of core particle have the potential to be novel retention aids in wet-end papermaking not only because of their spherical structure, but also due to controllable grafting density and molecular weight. Such characteristics are crucial in order to design multi-functional retention aids in sophisticated papermaking systems. This review presents some important recent advances with respect to retention aids, including single-component system and dual-component systems. Then, basic theory in papermaking is also briefly reviewed. Based on these advances, it emphatically describes spherical polyelectrolyte brushes, focused on their preparation methods, characterization, conformation, and applications in papermaking. This work is expected to contribute to improve a comprehensive understanding on the composition, properties, and function mechanisms of retention aids, which helps in the further investigation on the design of novel retention aids with excellent performance.

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Capture and flocculation of toxic cyanobacteria by amphiphilic peptide dendrimers for mitigating harmful blooms

Zheng,

Tremblay,

Chen

et al. 2024

Chemical Engineering Journal

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Coagulation-flocculation of Microcystis aeruginosa by polymer-clay based composites

Cited by 11 publications

References 41 publications

Thermal, Morphological and Mechanical Properties of Multifunctional Composites Based on Biodegradable Polymers/Bentonite Clay: A Review

Thermal, Morphological and Mechanical Properties of Multifunctional Composites Based on Biodegradable Polymers/Bentonite Clay: A Review

Spherical Polyelectrolyte Brushes as Flocculants and Retention Aids in Wet-End Papermaking

Capture and flocculation of toxic cyanobacteria by amphiphilic peptide dendrimers for mitigating harmful blooms

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