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Water soluble nanocomposite films based on poly(vinyl alcohol) and chemically modified montmorillonites
(Sage Publications, 2013-02-20)
Different montmorillonites were added to poly(vinyl alcohol) in order to improve their properties. The used montmorillonite’s were: Cloisite Naþ (Na), Nanofil (NF), and Cloisite 30B (30B). Poly(vinyl alcohol) þ montmorillonite ...
Adsorption and circular dichroism of tetracycline on sodium and calcium-montmorillonites
(Elsevier Science, 2013-01)
The interaction of tetracycline (TC) with a Na+-montmorillonite and a Ca2+-montmorillonite in aqueous media was investigated using a batch technique complemented with X-ray diffraction (XRD) and circular dichroism (CD). ...
Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies
(2013-05)
A combination of SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) techniques was used to characterise the morphology of Brazilian montmorillonites before and after intercalation of some organic compounds. ...
Effects of thermal and mechanical treatments on montmorillonite homoionized with mono- and polyvalent cations: Insight into the surface and structural changes
(Elsevier, 2013-02-04)
Smectite is a family of clay minerals that have important applications. In the majority of these clay minerals, the hydrated interlayer cations play a crucial role on the properties of the clay. Moreover, many studies have ...
Biodegradable Bovine Gelatin/Na + -Montmorillonite Nanocomposite Films. Structure, Barrier and Dynamic Mechanical Properties
(Taylor & Francis, 2010-05)
Biodegradable films based on gelatin and Na+-Montmorillonite were prepared by mixing of gelatin solutions with ultrasonically pre-treated clay suspensions under controlled conditions. The DRX patterns and AFM images suggested ...
Effects of montmorillonite on the chemical degradation kinetics of metsulfuron methyl in aqueous media
(Elsevier, 2013-08)
The degradation kinetics of the sulfonylurea herbicide metsulfuron methyl (MM) has been studied in batch experiments by UV–VIS spectroscopy, and the effects of pH and the presence of a clay mineral (Na-montmorillonite) are ...
Layer-by-layer composite film of nickel phthalocyanine and montmorillonite clay for synergistic effect on electrochemical detection of dopamine
(Elsevier B.V., 2018-04-01)
Dopamine (DA) abnormal levels are related to diseases which makes important the development of fast, reliable, low-cost and sensitive devices for diagnosis and pharmaceutical controls. Nanostructured film composite of ...
Highly Controlled Diffusion Drug Release from Ureasil-Poly(ethylene oxide)-Na+-Montmorillonite Hybrid Hydrogel Nanocomposites
(2018-06-06)
In this work, we report the effects of incorporation of variable amounts (1-20 wt %) of sodium montmorillonite (MMT) into a siloxane-poly(ethylene oxide) hybrid hydrogel prepared by the sol-gel route. The aim was to control ...