Polymer/Montmorillonite/Silver Nanocomposite Micro- and Nanoparticles Prepared by In-Situ Polymerization and Electrospraying Technique. By Jeong Hyun Yeum, Jae Hyeung Park, Jae Young Choi Jong Won Kim, Sung Kyou Han and Weontae Oh. Submitted: February 5th 2011 Reviewed: June 20th 2011 Published: December 22nd 2011. DOI: 10.5772/26212
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Silver nanoparticles (AgNPs) of a small size were successfully synthesized using the wet chemical reduction method into the lamellar space layer of montmorillonite/chitosan (MMT/Cts) as an organomodified mineral solid support in the absence of any heat treatment. AgNO3, MMT, Cts, and NaBH4 were used as the silver precursor, the solid support, the natural polymeric
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The novel nanoparticles (NPs) were designed for topical ophthalmic controlled drug delivery system through intercalating the BH into the interlayer gallery of Na-montmorillonite (Na+Mt) and then further enchasing chitosan nanoparticles. The resulting nanoparticles had a positive charge (+290.18 mV) with an average diameter of 4600.6 nm.
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Apr 28, 2014Crosslinked thiolated starch coated Fe 3 O 4 magnetic nanoparticles: Effect of montmorillonite and crosslinking density on drug delivery properties Chinmayee Saikia. Department of Chemical Sciences, Tezpur University, Tezpur, Assam, India. Search for more papers by this author.
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montmorillonite may be particularly suitable to be used as a sup-port for the synthesis of magnetite nanoparticles. However, so far, few attempts to synthesize montmorillonite-supported magnetite composite could be found in literatures [15,16]. In the present study, montmorillonite-supported magnetite
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montmorillonite. The results of materialographic investigations of PE/MMT composition after milling in high-speed propeller mixer are introduced on microphotographs (Fig. 4). It can be observed non-uniform fusion of montmorillonite particles on the surface of PE granules. This particles are strictly connected to the PE surface
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Silver carbonate and silver nanoparticles (NPs) over of stabilizer montmorillonite (MMT) have been synthesized in aqueous and polyol solvent, respectively. Dispersions of silver nanoparticles have been prepared by the reduction of silver nitrate over of MMT in presence and absence of Na 2 CO 3 compound in ethylene glycol. It was observed that montmorillonite was capable of
Get PriceNovel silica-coated ferrite nanoparticles supported with montmorillonite (K10) have been prepared successfully by using a simple impregnation method. Further, these nanoparticles were characterized by using different analytical methods like FT-IR, PXRD, EDS, and FE-SEM techniques. In addition, these nanoparticles h
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Ir(0)-nanoparticles (Ir-NPs) were synthesized into the nanopores of modified montmorillonite clay by incipient wetness impregnation of IrCl 3 followed by reduction with ethylene glycol. The activation of the montmorillonite clay was carried out by treatment with HCl under controlled conditions to increase the surface area by generating nanopores which act as host for the
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Nanoclays are nanoparticles of layered silicate minerals ~1 nm Bentonite, which is composed predominantly of the smectite-group clay minerals, mainly montmorillonite, has a long history of use Retsch Co. Ltd.) at 20 Hz at ambient temperature for 10 min. Milling was performed using a vertical-type ball mill with a 1.5 L zirconia chamber
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Nanoparticles have proportionally larger surface area than their microscale counterparts, which by using milling, nan-olithography, or precision engineering. Size usually relates to func- The most widely studied type of clay fillers is montmorillonite (MMT), a hydrated alumina-silicate layered clay consisting of an
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Apr 29, 2020Montmorillonite-loaded solid lipid nanoparticles with good biocompatibility, using Betaxolol hydrochloride as model drug, were prepared by the melt-emulsion sonication and low temperature-solidification methods and drug bioavailability was significantly improved in this paper for the first time to application to the eye.
Get PriceUse of Waste Materials as Nanoparticle Production and Application. Waste materials from the different sources like the industries or consumer is the highlighted problem, waste may have value added materials or basic structures that can be utilized to produce the nanoparticles e.g., waste from the rubber/tires, large batteries, wastewater, bio-solids etc. contains the carbon, copper,
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Fe content and distribution on montmorillonite would probably enhance its sorption capacity for hydrophobic organic pollutants. Thus, Fe modified montmorillonites with different ratios of FeSO47H2O and Ca-montmorillonite were prepared. The results indicated that γ-Fe2O3 nanoparticles were not only generated at the montmorillonite surfaces, but that the γ
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for the nanoparticles to impede mass diffusion. In this study, Ag nanoparticles were synthesized via chemical reduction and anchored on montmorillonite (MMT) surface to serve as carrier of nanoparticles. The effect of reducing agent concentration, in this case trisodium citrate, on the particle size of Ag nanoparticles was investigated.
Get PriceMar 22, 2000The montmorillonite sheets disrupt the electron exchange interactions between the magnetite nanoparticles in adjacent layers, thereby limiting the magnetization reversal to two dimensions. Some optical properties of Fe 3 O 4 /PDDA films are investigated as well.
Get PriceThe present study compares the photocatalytic decolorization ability of Fe-doped ZnO modified both natural zeolite and montmorillonite towards aqueous solution of organic dyes such as methylene blue and methyl orange under UV light irradiation. Both photocatalysts were synthesized using co-precipitation method and characterized by X-ray diffraction, energy
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MISC{Shameli_na:synthesis, author = {Kamyar Shameli and Mansor Bin Ahmad and Mohsen Zargar and Wan Md and Zin Wan Yunus and Abdolhossein Rustaiyan and Nor Azowa Ibrahim and Correspondence Kamyar Shameli}, title = {NA: Synthesis of silver nanoparticles in montmorillonite and their antibacterial behavior.
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Abstract This work looked at controllably synthesizing iron nanoparticles using borohydride solution reduction strategy with polyethylenimine-modified montmorillonite clay mineral as a host. In the hybridization process the protonation extent of polyethylenimine had vital but complex influence on the size, morphology, dispersion, distribution location, and even phase identity of
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Synthesis and Characterization of Montmorillonite Supported Zero-Valent Bimetallic Fe/Ni Nanoparticles for the Removal of Triclosan. As an important industrial material, triclosan is widely used in manufacturing, and similar to many materials of its kind, triclosan causes significant environmental pollution, especially water pollution.
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montmorillonite and zeolites. Clay and silica nanoparticles have been used as nanofillers to reinforce the base material chitosan in polymer nanocomposite14,37. Among these, the adsorption process is the most promising for the removal of organic and inorganic pollutants from aqueous solutions due to its low application cost and
Get Pricethe internalization ratio of nanoparticles, prompt the therapeutic eect, improve the image contrast of tumors, and induce tumor cell death through local temperature increases. Here, we have compiled a table to compare the dierence between the previous study and this research work (Table 1). erefore, montmorillonite (MMT) can be used as a
Get PriceMontmorillonite is a layered clay mineral (2:1 phyllosilicate) that belongs to a class of the smectite group. It is a naturally abundant material and is chemically modified by the cation-exchange method for the preparation of polymer nanocomposites.
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Montmorillonite Chemical Equation: Na0.2Ca0.1Al2Si4O10(OH)2(H2O)10 Sodium bentonite is the name for the ore whose major constituent is the clay mineral, sodium montmorillonite. Montmorillonites are three-layer minerals consisting of two tetrahedral layers sandwiched around a central octahedral layer (Figure 1). Oxide anions at the apices of
Get PriceAlthough all plastics are virtually produced through catalytic processes, plastic waste is marginally treated with the help of catalysis. This seems due to the greater focus of research on reaction and process engineering rather than catalyst development, under the pressure of rapidly commercializing new solutions. To unlock the full potential of catalysis, this survey overviews
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N2 - This is the first time an analytical protocol is proposed to investigate and live-monitor the behaviour of montmorillonite nanoparticles, of different natures, in alkaline cement environment (pH of 12-13). In this study inorganic and organomodified montmorillonite nanoparticles were characterised via TEM, XRD, SEM-EDX and TGA.
Get Price1. Sun Hongjuan, Peng Tongjiang*, Liu Bo, Xian Haiyang. Effects of montmorillonite on phase transition and size of TiO2 nanoparticles in TiO2/montmorillonite nanocomposites. Applied Clay Science. 2015, 114: 440-446.（SCI,JCR-2） 2. Wang Jiande, Xian Haiyang, Peng Tongjiang*, Sun Hongjuan, et al.
Get PriceSilver Nanoparticles/Montmorillonite Composites Prepared Using Nitrating Reagent at Water and Glycerol
Get PriceDec 12, 2016In the present work, the effect of different percentages of nano-montmorillonite (NM) powder on the mechanical and microstructural properties of hardened cement paste and mortar were studied. The portland cement was replaced with montmorillonite nanoparticles with 0.5, 1, 1.5, 2, 2.5, and 3 weight percentages of cement.
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Pd powder samples were prepared by mechanical-energy high-transfer technique (ball milling) in agatha vessels for different milling times in the range comprehended between 6 and 120 hours. In this work we present the HRTEM observation of Pd nanoparticles obtained by mechanical milling (fig. 1(a)). These particles are around 6 nm in size (fig. 1
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Jun 15, 2012Iron nanoparticles exhibit greater reactivity than micro-sized Fe(0), and they impart advantages for groundwater remediation. In this paper, supported iron nanoparticles were synthesized to further enhance the speed and efficiency of remediation. Natural montmorillonite and organo-montmorillonite were chosen as supporting materials.
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Dec 15, 2012Nano Ball Milling 1. BALL MILLING METHOD By Aravind N. B 2. Nano materials can be defined as those materials which have structured components with size less than 100nm at least in one dimension. Nanotechnology is an advanced technology, which deals with the synthesis of nano-particles, processing of the nano materials and their applications.
Get PriceTiO2 nanoparticles were produced from a commercial anatase powder through a wet milling process. The effect of grinding intensity, which is directly dependent on the operating parameters, was analyzed and the performance of polyethylene glycol (PEG400) as a dispersing agent in the milling system was also tested. The results showed that the processes using polyethylene
Get PriceAug 03, 2016The herbal nanoparticles were prepared from shade dried Tridax procumbens plant leaves employing ball milling technique using different process parameters, like ball ratio/size and milling time. The obtained nanoparticles were comprehensively characterised using X-ray diffraction, Fourier transform infrared spectroscopy, UV–visible spectroscopy,
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Iron nanoparticles have been successfully synthesized using sodium borohydride solution reduction of ferric trichloride hexahydrate in the presence of montmorillonite as an effective protective reagent and support as well. A combination of characterizations reveals the well disperse of these obtained iron nanoparticles supported on the external surface of clay with
Get PriceAug 19, 2016Nanocomposites of layered silica nanoparticles (LSN) obtained by the sol–gel method, and commercial montmorillonite clay Cloisite20A with polypropylene (PP) and Cloisite30B with polyamide-6 (PA6) were prepared by melt blending in order to study their effects on barrier, mechanical properties, and thermal stability. Transmission electron
Get PriceIn this study, the effect of the addition of K-10 montmorillonite (MMT) nanoparticles on the mechanical and thermal properties of carbon-carbon composites were investigated. The composites were obtained using self-made prepregs with plain and twill 2/2, 600 g/m2 carbon fabric and phenolic-formaldehyde resin.
Get PriceCdS, ZnS and core/shell CdS/ZnS nanoparticles deposited on montmorillonite (MMT) were synthesized by one-pot procedure, that is, by subsequent precipitation of CdS and ZnS nanoparticles in one aqueous dispersion of cetyltrimethylammonium bromide (CTAB) and deposited on montmorillonite. The prepared nanoparticles were characterized by chemical
Get Pricemagnetic nanoparticles well dispersed on montmorillonite using sodium hydroxide as a reducing agent. 2. Materials and Methods In this work, all reagents were of analytical grade. Ferric chloride hexahydrate (FeCl 3. H 2 O) and ferrous chloride tetrahydrate (FeCl 2.H 2 O) of wt. % were used as the iron precursors and also montmorillonite powder
Get PriceDec 01, 2010Silver-montmorillonite (Ag-MMT) antimicrobial nanoparticles were obtained by allowing silver ions from nitrate solutions to replace the Na + of natural montmorillonite and to be reduced by thermal treatment. The Ag-MMT nanoparticles were embedded in agar, zein, and poly(ɛ-caprolactone) polymer matrices.
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