Mechanism responsible for intercalation of dimethyl sulfoxide in kaolinite: Molecular dynamics simulations

Zhang, Shuai; Liu, Qinfu; Cheng, Hongfei; Gao, Feng; Liu, Cun; Teppen, Brian J.

doi:10.1016/j.clay.2017.10.022

Cited by 37 publications

(19 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Intercalation is a promising strategy to expand the interlayer distance of clay minerals for their further exfoliation or other applications . Usually, polar molecules are intercalated into the layers in a liquid environment, swelling the layered structure and weakening the interlayer attraction.…”

Section: Design and Fabricationmentioning

confidence: 99%

Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes

Zhou

LaChance

Smith

et al. 2019

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Nature not only carefully prepares ingenious raw materials but also continuously inspires and guides human beings to create a wide variety of intelligent materials. As the most abundant mineral resource on earth, clay minerals are no longer synonymous with ceramics and cements. Many natural clay minerals can be exfoliated into single-or few-layered nanosheets with exquisite physicochemical properties, which can be reassembled into functional membranes with a macroscopic controllable size and microscopic ordered structure. They are thus used in many fields including chemistry, biology, energy, and environmental science. Strategic design represents one of the key processes to enhance the value of clay minerals and broaden their applications. In this work, the three frequently used approaches of exfoliation are highlighted and the six routes of assembly including casting, dip-coating, spray coating, vacuum filtration, electrophoretic deposition, and 3D printing are compared. The corresponding principles and advantages are summarized. Representative applications of clay-based multifunctional membranes in protection, separation, responsiveness, flexible electronics, and energy conversion are presented. The challenges and future perspectives of the claybased multifunctional membranes are discussed.

show abstract

Section: Design and Fabricationmentioning

confidence: 99%

Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes

Zhou

LaChance

Smith

et al. 2019

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…The species of guest molecules that enter between the layers of kaolinite are determined by the hydrogen bonds between the octahedral and tetrahedral layers of kaolinite, therefore, a limited number of polar molecules are used to locate kaolinite clay layers in the literature. One of these molecules is DMSO, which is a polar compound [22]. For this reason, modification and intercalation processes were carried out on DMSO-spaced kaolinite.…”

Section: Characterization Of Intercalated Nanoclaysmentioning

confidence: 99%

Synthesis, Characterization and Biological Properties of Intercalated Kaolinite Nanoclays: Intercalation and Biocompatibility

Yılmaz

Irmak

Turhan

et al. 2019

Advances in Materials Science

View full text Add to dashboard Cite

The aims of the present study were to synthesize the intercalated kaolinite samples with dimethylsulfoxide (DMSO), glutamic acid (GA), succinimide (SIM), cetylpyridiniumchloride (CPC), and hexadecyltrimethylammoniumchloride (HDTMA+); to characterize by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR), and to determine the hemocompatibility and the cytotoxic effects of the intercalated kaolinite nanoclays on human lymphocytes. It was found that the intercalation with DMSO did not cause any decrease in cell viability until its maximum concentration (500 µg/mL), however, the intercalation with SIM, CPC, and (HDTMA+) causd important decreases in lymphocyte viabilities. It was determined that no significant decrease was observed in protein content of the lymphocyte cells exposed to the kaolinite nanoclays except the ones intercalated with SIM. Furthermore, the pristine kaolinite nanoclays which were intercalated with DMSO, GA, and SIM exhibited high hemocompatibility and the nanoclays intercalated with CPC and (HDTMA+) were highly hemocompatibile for the amounts below 125 and 500 µg/mL, respectively. All the results of this work can serve for the human risk assesment of intercalated nanoclays.

show abstract

“…The molecular mechanism of DMSO intercalation has been recently revisited using molecular dynamics simulation. The modeling confirmed that intercalation involves the hydroxyl groups of the octahedral vacancies functioning as H-donors towards the S=O group of DMSO, whereas the hydrophobic Si=O groups of the ditrigonal cavities of the tetrahedral surface attract the methyl groups of DMSO [23,24].…”

Section: Introductionmentioning

confidence: 72%

DMSO Intercalation in Selected Kaolinites: Influence of the Crystallinity

et al. 2020

View full text Add to dashboard Cite

The present study deals with the relation between crystalline order in kaolinites and their ability to intercalate DMSO. Raw clays and kaolinite–DMSO complexes are analyzed using FTIR, XRD powder diffraction and differential scanning calorimetry and thermogravimetric analysis (DSC-TGA). The crystallinity is accessed using the Hinckley index (HI) from the raw clays’ XRD patterns and the p2 factor from their FTIR spectra. The intercalation ratio is evaluated from XRD and compared among the samples. The thermal analyses show a decrease in the dehydroxylation temperature in the DMSO–kaolinite complexes, indicating a decrease in the interlayer cohesion that may be useful to improve the delamination of kaolinite. The analysis of the coherent scattering domain size in the raw and the DMSO-intercalated samples indicates that the ordering is not affected during the DMSO intercalation. From these results, it is deduced that DMSO intercalation is favored by an increased crystallinity, as revealed by the intercalation ratio from XRD and the DSMO release during DSC-TGA analysis.

show abstract

Mechanism responsible for intercalation of dimethyl sulfoxide in kaolinite: Molecular dynamics simulations

Cited by 37 publications

References 52 publications

Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes

Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes

Synthesis, Characterization and Biological Properties of Intercalated Kaolinite Nanoclays: Intercalation and Biocompatibility

DMSO Intercalation in Selected Kaolinites: Influence of the Crystallinity

Contact Info

Product

Resources

About