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.
Mercuric iodide and bismuth tri-iodide nanoparticles were synthesized by suspension in octadecene, from Hg(NO3)2. H2O and I2, and from Bi(NO3)3. 5H2O and I2, respectively. The best synthesis conditions were 2 hrs. at 60-70 oC, followed by 10 min. at 95-110 oC for mercuric iodide nanoparticles, and 4 hrs. at 80-110 oC, followed by 10 min. at 180-210 oC for bismuth tri-iodide ones. Nanoparticles were...
The maghemite (γ-Fe2O3) nanoparticles were obtained via high temperature pyrolysis with the precursor of magnetite that was synthesized via chemical coprecipitation. Then the (3-aminopropyl) triethoxysilane (APTES) was used for the surface functionalization of γ-Fe2O3 nanoparticles. Finally the gold-coated maghemite (γ-Fe2O3/Au) nanoparticles are prepared via sonochemical synthesis of a solution mixture...
Hollow mesoporous silica nanospheres with large pores have been synthesized by a newly developed green approach, and the highly dispersed hydrophobic magnetite nanoparticles were then loaded into hollow nanospheres through the large pores with a vacuum impregnation technique. The obtained Fe3O4-hollow mesoporous silica composites exhibit superparamagnetic property and ultra-fast immobilization speed...
Nickel oxide (NiO) nanoparticles with particle size around 30-40 nm have been synthesized via polymerized complex method. In this method, citric acid was used as a reagent and ethylene glycol was used as a polymer stabilizer and also served as a diffusion barrier. The synthesized precursors were calcined at 773, 873 and 973 K for 4 h to obtain the nickel oxide nanoparticles. The structure, morphology,...
Currently the need for various developmental models in material sciences to develop green technologies has been reemphasized. For biodiversity rich countries like India, low investment and sustainability of biological synthesis adds to its attraction. Plants respond to heavy metal stress by metal complexation process like production of phyochelations or by other metal chelating peptides. In this paper...
Brilliant blue mono-dispersed ZnS QDs have been synthesized using hydrothermal synthesis. The synthetic procedure provides some advantageous synthetic features such as a short preparation time with control over product dimensions using green conditions. These can then be organized into different special arrangements and their PL properties as well as XRD, TEM and UV-vis characterization are reported...
Conducting polyaniline-titanium dioxide composite nanorods were synthesized by gamma radiation-induced oxidative polymerization method in the presence of TiO2 nanoparticles and an oxidant. The structural, morphological, conducting and optical properties of the nanorods were studied using SEM, TEM, UV-vis absorption, X-ray photoelectron spectra, Fourier transform infrared spectra and X-ray diffraction...
The formation and colloidal stability of zinc oxide nanoparticles, with a mean size smaller than 5 nm, produced under pulsed laser ablation of a zinc metal target in different liquid environments of NaOH and KOH solutions, is reported. Using the 532 nm harmonic of Nd:YAG laser with 65 mJ/p, ZnO nanoparticles were produced only at low concentrations of NaOH. On the other hand at pH>10 and energies...
Recently gold/iron oxide composite nanoparticles have attracted much attention as promising biomedical materials. In this paper, a novel laser soldering method called 'nano-soldering' is employed to prepare gold/iron oxide composite nanoparticles. The structural properties were examined by X-ray diffractometry (XRD), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy...
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.