Fundamental and applied research on clay minerals: From climate and environment to nanotechnology

Zhou, Chun Hui; Keeling, John

doi:10.1016/j.clay.2013.02.013

Cited by 228 publications

(101 citation statements)

References 21 publications

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“…In addition, each aluminosilicate layer consists of two Si-O tetrahedral sheets sandwiching an Al-OH octahedral sheet by means of -Si-O-Al-O-Si-bonds (Bergaya and Lagaly, 2013). Such naturally occurring Mt provided large surface areas and solid acidic sites for catalysis and adsorption (Aylmore et al, 1970;Zhou et al, 2012;Zhou and Keeling, 2013). Therefore, the addition of Mt into the hydrothermal system should play a catalytic role in the transformation of biomass into hydrochar and form a nanocomposite material with hydrophilic (mineral) and hydrophobic (hydrochar) phases.…”

Section: Introductionmentioning

confidence: 99%

Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions

Tong

et al. 2016

Applied Clay Science

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Section: Introductionmentioning

confidence: 99%

Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions

Tong

et al. 2016

Applied Clay Science

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“…In general, halloysite nanotubes vary in length from submicron to several microns, sometimes even N 30 μm (Joussein et al, 2005), in external diameter from approximately 30 to 190 nm, and in internal diameter from approximately 10 to 100 nm (Yuan et al, 2008). The morphological properties -length, external diameter, internal diameter, and wall thickness -of halloysite significantly affect its performance in the interface reaction with functional guests (Zhou and Keeling, 2013). For example, a previous study demonstrated that the quantity of hydroxyl groups of halloysite available for organosilane grafting is highly dependent on its morphological parameters (Yuan et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

From platy kaolinite to aluminosilicate nanoroll via one-step delamination of kaolinite: Effect of the temperature of intercalation

Yuan

Tan

Annabi-Bergaya

et al. 2013

Applied Clay Science

128

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“…1b) by Li + in hectorite in the octahedral sheet. 27,28 For this reason, exchangeable cations such as Na + exist in the interlayer space.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in clay mineral-containing nanocomposite hydrogels

et al. 2015

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Clay mineral-containing nanocomposite hydrogels have been proven to have exceptional composition, properties, and applications, and consequently have attracted a significant amount of research effort over the past few years. The objective of this paper is to summarize and evaluate scientific advances in clay mineral-containing nanocomposite hydrogels in terms of their specific preparation, formation mechanisms, properties, and applications, and to identify the prevailing challenges and future directions in the field. The state-of-the-art of existing technologies and insights into the exfoliation of layered clay minerals, in particular montmorillonite and LAPONITE s , are discussed first. The formation and structural characteristics of polymer/clay nanocomposite hydrogels made from in situ free radical polymerization, supramolecular assembly, and freezing-thawing cycles are then examined. Studies indicate that additional hydrogen bonding, electrostatic interactions, coordination bonds, hydrophobic interaction, and even covalent bonds could occur between the clay mineral nanoplatelets and polymer chains, thereby leading to the formation of unique three-dimensional networks. Accordingly, the hydrogels exhibit exceptional optical and mechanical properties, swelling-deswelling behavior, and stimuli-responsiveness, reflecting the remarkable effects of clay minerals. With the pivotal roles of clay minerals in clay mineral-containing nanocomposite hydrogels, the nanocomposite hydrogels possess great potential as superabsorbents, drug vehicles, tissue scaffolds, wound dressing, and biosensors. Future studies should lay emphasis on the formation mechanisms with in-depth insights into interfacial interactions, the tactical functionalization of clay minerals and polymers for desired properties, and expanding of their applications.

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Fundamental and applied research on clay minerals: From climate and environment to nanotechnology

Cited by 228 publications

References 21 publications

Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions

Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions

From platy kaolinite to aluminosilicate nanoroll via one-step delamination of kaolinite: Effect of the temperature of intercalation

Recent advances in clay mineral-containing nanocomposite hydrogels

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