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May 15, 2010· Ag nanoparticles (NPs) of approximately 2.5±0.6 nm in size with high stability were prepared on montmorillonite clay in n-hexanol ([Ag NP/clay]). The aqueous suspensions of Ag NP/clay obtained were colored pale yellow to gray, and an intense yellow surface plasmon band was observed at approximately 397-422 nm at a [Ag(+)] …
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Semantic Scholar extracted view of "Characterization of silver nanoparticles deposited on montmorillonite" by P. Praus et al. ... DOI: 10.1016/J.CLAY.2010.06.009; Corpus ID: 96393886; Characterization of silver nanoparticles deposited on montmorillonite
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Clay minerals have advantages to be used as supports for obtaining new catalysts, in which colloidal and surface characteristics play a significant role. In addition to their favorable physicochemical properties, clay minerals allow different modifications to form structures with broad photochemical capabilities. This review collects pertinent works of …
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Protocol optimization for a fast, simple and economical chemical reduction synthesis of antimicrobial silver nanoparticles in non-specialized facilities BMC Research Notes . 10.1186/s13104-019-4813-z . 2019 . Vol 12 (1) . Cited By ~ …
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This study investigated the application of organo-clay as a support in the synthesis of silver nanoparticles with increased antimicrobial activity – the Ag-montmorillonite nanocomposite (Ag-MMT). This technology is utilized to improve the antibacterial function of materials, especially those used in polymeric nanocomposites.
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Aug 01, 2013· Semantic Scholar extracted view of "Functionalized hectorite clay mineral for Ag(I) ions extraction from wastewater and preparation of silver nanoparticles supported clay" by Theeradit Phothitontimongkol et al. ... Based on the adsorption/desorption study result, the adsorbent can be efficiently recovered and has been verified according to ...
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The quantity of Ag nanoparticles adsorbed by the diatomaceous earth and the adsorption rate as function of the concentration of Ag nanoparticles were established. Other complementary techniques such as X-ray diffraction, infrared spectroscopy and transmission and scanning electron microscopy were used.
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Ag Nanoparticles Adsorption on Diatom-Montmorillonite Clays ... G.G. Buonocore, M.A. Del Nobile, Antimicrobial silver-montmorillonite nanoparticles to prolong the shelf life of fresh fruit salad ... Characterization of silver nanoparticles deposited on montmorillonite, Appl. Clay Sci. 49 (2010) 341-345 ...
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@article{Miyoshi2010CharacterizationAP, title={Characterization and photochemical and antibacterial properties of highly stable silver nanoparticles prepared on montmorillonite clay in n-hexanol.}, author={Hirokazu Miyoshi and Hideki Ohno and Keisuke Sakai and Naho Okamura and Hiroki Kourai}, journal={Journal of colloid and interface science ...
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Ag Nanoparticles Adsorption on Diatom-Montmorillonite Clays p.91. Synthesis of Ag Nanoparticles-Clinoptilolite Composite by Homogeneous and Heterogeneous Nucleation p.97. DSC-TGA Hydrogen Evaluation during Mechanical Milling of AlFe Intermetallic p.105. Microporous Carbonaceous Materials Incorporated with Metal (Ti, V and Zn) for …
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Jul 09, 2018· The pH of the solution affects the protonation degree of chitosan and the mode of adsorption on montmorillonite, but not the adsorption rate. For chitosan-montmorillonite prepared at pH 5.0 and 75ºC, the effective anion exchange capacity (AEC) was found to be 80% (0.36 mol c kg –1) of the calculated value. The relatively large AEC …
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Mar 25, 2011· Abstract. Silver nanoparticles (Ag NPs) were synthesized by the chemical reducing method in the external and interlamellar space of montmorillonite (MMT) as a solid support at room temperature. AgNO 3 and NaBH 4 were used as a silver precursor and reducing agent, respectively. The most favorable experimental conditions for …
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Feb 05, 2015· It was observed that montmorillonite was capable of stabilizing formed Ag nanoparticles through the reduction of Ag (+) ions in ethylene glycol. Na2CO3 was used as carbonate source in synthesis of Ag2CO3 NPs in water solvent and also for controlling of Ag nanoparticles size in ethylene glycol medium. The samples were characterized by X-ray ...
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DOI: 10.1016/J.JCIS.2005.10.058 Corpus ID: 31041611; Characterization and adsorption properties of diatomaceous earth modified by hydrofluoric acid etching. @article{Tsai2006CharacterizationAA, title={Characterization and adsorption properties of diatomaceous earth modified by hydrofluoric acid etching.}, author={Wen-Tien Tsai and …
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Ag Nanoparticles Adsorption on Diatom-Montmorillonite Clays p.91. Synthesis of Ag Nanoparticles-Clinoptilolite Composite by Homogeneous and Heterogeneous Nucleation p.97. DSC-TGA Hydrogen Evaluation during Mechanical Milling of AlFe Intermetallic p.105. Microporous Carbonaceous Materials Incorporated with Metal (Ti, V and Zn) for …
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The elimination of iodide (I −) from water is a tough subject due to its low adsorption tendency and high mobility.In this work, MCM-41/Ag 2 O nanomaterials were prepared, characterized, and employed to adsorb I − from water. The Ag 2 O nanoparticles were dispersed homogeneously in the pores or at the surface of the MCM-41 support, and the …
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Aug 01, 2014· The adsorption experiments showed that the removal of As (V) and As (III) on modified montmorillonite was pH dependent and that the reactions reached equilibrium within 20 min. The adsorption of As (V) and As (III) on C–Fe–M and Fe–M both were consistent with pseudo-second-order (R 2 > 0.99).
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Apr 01, 2016· The obtained TEM images of the Ag NPs into the clay interlayer MMT (Fig. 3b) clearly indicated the formation of small spherical Ag NPs in stabilizer with average size 4 nm in diameter. The size of the Ag NPs into MMT is smaller than that of the synthesized Ag NPs in the absence of MMT (30 nm). This is due to the availability of more nucleating …
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This study reports the carbon dioxide (CO 2 ) adsorption on montmorillonite (NaMt) incorporating Cu 0, Fe 0, Pd 0 and Ag 0 as metallic nanoparticles (MNPs). The changes in structural, textural, morphological and adsorption properties of the resulting materials (NaMt-MNPs) were investigated.
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Organoclay-based nanoparticles from montmorillonite and. This study introduces organoclay-based submicron- and nanosized particles prepared from montmorillonite (SWy2) and naturally occurring clay deposits using sequential steps of wet ball milling, ultrasonication and sedimentation followed by an ion exchange process using two …
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