The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The syntheses of platinum nanoparticles (Pt NPs) using colloidal and microemulsion methods and different reducing agents (methanol, NaBH4, and N2H4) have been compared systematically. The colloidal synthesis was based on polyvinylpyrrolidone (PVP) as capping agent and water and methanol-water mixtures as reaction media. The microemulsion syntheses were carried out using the water-in-oil (w/o) system...
In this study, polyethylenimine-functionalized pyroxene nanoparticles were successfully prepared in-house for the removal of commercial red dye (CRD) from an industrial wastewater. The functionalization was accomplished by anchoring polyethylenimine (PEI) onto the surface of pyroxene nanoparticles without surface modifications or preliminary coating. Characterization was followed out by textural properties,...
In this work, the effect of the exfoliation degree of montmorillonite (MMT) platelets on their electrophoretic mobility distributions in aqueous suspensions was investigated in order to approach into the correlation of MMT exfoliation with electrokinetic property. The experimental results have shown that the negative mobility increased with the increase of exfoliation degree or with the decrease of...
The size determination of nanoparticles in aqueous solution is important in bio- and nanotechnology. The sizes of particles in aqueous solution are determined by particle tracking analysis (PTA) with the Stokes–Einstein assumption from diffusion coefficient measurements. However, the interactions between particles affect the particle size determined by PTA. In this work, we observed particle/electrolyte...
The surface freezing (SF) of liquid 6-perfluorohexyl hexanol (F6H6OH)–1-dodecanol (C12OH) mixture was studied by surface tension, external reflection absorption FTIR (ERA-FTIR), and X-ray reflectivity (XR) measurements. The surface tension vs. temperature curve of pure C12OH liquid shows a sharp break point at the surface liquid (SL)–SF phase transition temperature Ts. The surface tension of pure...
In the aim of increasing the band gap value of FeS2-pyrite thin films having good crystallinity, high absorption coefficient (∼105cm−1) and a band gap of about 0.95eV, which were synthesized by a simple and low cost method consisting of sulphuration, under vacuum (≅10−4Pa), of amorphous iron oxide thin films pre-deposited by spray pyrolysis of FeCl3·6H2O (0.03M)-based aqueous solution onto glass substrates...
To investigate the effect of Cu on structural and adsorption properties of CuMgAl LDH towards the efficient removal of organic dye contaminants from aqueous solution, a series of CuMgAl LDHs with different molar ratio of Cu/Mg were synthesized via co-precipitation method. The synthesized materials were characterized by using various techniques such as powder X-ray diffraction (PXRD), Fourier transformed...
During the last decade, there has been a growing interest for more “label-friendly” ingredients in food industry, as well as in pharmaceuticals, and cosmetics. Thus, a lot of research has been developed to the antimicrobial and/or antioxidant characteristics of essential oils. We, therefore, examined the influence of environmental stress conditions (i.e. salt addition and acidification) on the stability...
The development of biocompatible hydrogels that allow the controlled release of active components has important applications. In this paper, we report the preparation and characterization of genipin crosslinked chitosan hydrogels loaded with two active components, namely dihydroxyacetone (DHA) or 3-hydroxy-4-trimethylammonium butyrate (l-carnitine), which are used in cosmetics for skin tanning and...
Carboxymethyl chitosan-Zinc oxide bionanocomposite incorporation into the PVDF membrane matrix was prepared by the phase inversion method. The synthesized Carboxymethyl chitosan-Zinc oxide was confirmed by FTIR, XRD and HRTEM analysis. The modified bionanocomposite membrane was structurally characterized. The modified membranes exhibited low flux than the pure membrane as the membrane morphology overruled...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.