Concepts for the Stabilization of Metal Nanoparticles in Ionic Liquids

Kraynov, A.; Müller, Tobias

doi:10.5772/22111

Cited by 45 publications

(43 citation statements)

References 173 publications

(219 reference statements)

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“…During the analysis of the obtained adsorption amount and the Cr 2 O 3 zeta potential values, it was found that in the whole pH range, the solid particle surface is completely covered with the biopolymer macromolecules. Thus, the most likely mechanism of stabilization suspension, which contributes to increase in stability of the tested systems, is the steric stabilization (Kraynov and Muller 2011). It is due to the mutual repulsion of the adsorption layers formed on the solid surface.…”

Section: Resultsmentioning

confidence: 99%

Investigation of removal possibilities of chromium(III) oxide from water solution in the presence of albumins

Szewczuk-Karpisz

Wiśniewska

2014

Int. J. Environ. Sci. Technol.

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System destabilization is a highly desirable phenomenon during colloidal impurity removal from sewages and wastewaters. Therefore, in this study, the stability of chromium(III) oxide suspension in the absence and presence of albumins [bovine serum albumin (BSA), ovalbumin (OVA), human serum albumin (HSA)] was investigated. Based on the analysis of experimental results, i.e., measurements of adsorption amount, electrokinetic potential, and metal oxide surface charge density as well as system stability, the mechanism of the suspension stabilization/destabilization was proposed. The examined system without the albumins is relatively stable at pH 3, 4.6, and 9 (TSI = 34.8, 36.6, 34.22, respectively), which is associated with the electrostatic stabilization phenomenon. In turn, the least stable is the suspension at pH 7.6 (TSI = 55.43). This is the result of the adsorbent zero surface charge. Regardless of solution pH, the BSA, OVA, or HSA adsorption causes an increase in the system stability (17.55 \ TSI \ 30). Probably, the steric stabilization is involved in this phenomenon, which results from the mutual repulsion of the adsorption layers formed on the solid surface. Thus, it can be concluded that the albumin presence in the industrial wastewaters impedes the chromium(III) oxide removal.

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Section: Resultsmentioning

confidence: 99%

Investigation of removal possibilities of chromium(III) oxide from water solution in the presence of albumins

Szewczuk-Karpisz

Wiśniewska

2014

Int. J. Environ. Sci. Technol.

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“…Owing to their small size, nanoparticles have a very high specific surface area and surface energy, which induce their thermodynamic instability [72]. Nanoparticles have a strong tendency to stabilize themselves either by adsorption of molecules from the surrounding or by reducing the surface area through agglomeration [73].…”

Section: Nanoparticle Stabilizationmentioning

confidence: 99%

Current Approaches to Designing Nanomaterials Inspired by Mussel Adhesive Proteins

Gazella

Lee

2014

Bio‐ and Bioinspired Nanomaterials

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“…One is a surface charge repulsion between ligand coated nanoparticles and the other is a steric hindrance between ligand coated nanoparticles [9]. no precipitation, no aggregation, and no decomposition).…”

Section: Possible Ligandmentioning

confidence: 99%