Preparation and characterization of porous starch reinforced with halloysite nanotube by solvent exchange method

2019 ◽  
Vol 123 ◽  
pp. 682-690 ◽  
Author(s):  
N. Oliyaei ◽  
M. Moosavi-Nasab ◽  
A.M. Tamaddon ◽  
M. Fazaeli
Keyword(s):  
Solvent Exchange ◽  
Exchange Method ◽  
Halloysite Nanotube

Synthesis and characterization of low dimensional bioactive monetite by solvent exchange method

2017 ◽  
Vol 209 ◽  
pp. 19-22 ◽  
Author(s):  
K.V. Nishad ◽  
S. Sureshbabu ◽  
Manoj Komath ◽  
G. Unnikrishnan
Keyword(s):  
Synthesis And Characterization ◽  
Solvent Exchange ◽  
Exchange Method ◽  
Low Dimensional

Physical - Chemical Issues of Cephalosporin Intercalated Nanoparticles for Life - Threatening Infections Treatment

2001 ◽  
Vol 71 (3) ◽  
pp. 342-349
Author(s):  
Lucian Eva ◽  
Letitia Doina Duceac ◽  
Liviu Stafie ◽  
Constantin Marcu ◽  
Geta Mitrea ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Advanced Characterization ◽  
Generation Cephalosporin ◽  
Fourth Generation ◽  
Exchange Method ◽  
Physico Chemical ◽  
Life Threatening ◽  
Double Hydroxide ◽  
Double Hydroxides

The fourth generation cephalosporin antibacterial agent, cefepime, was loaded into layered double hydroxides for enhancing antibiotic efficiency, reducing side effects, as well as achieving the sustained release property. The intercalation of antibiotic into the inter-gallery of ZnAl-layered double hydroxide (LDH) was carried out using ion exchange method, by this constituting a nano-sized organic-inorganic hybrid material for a controlled release novel formulation. Although cefepime is a broad spectrum antibiotic, it has various adverse effects and a significant degradation rate. Thus, the preparation and physico-chemical characterization of nanomaterials able to intercalate this drug is an important study for medical and pharmaceutical field. The antibiotic inclusion into LDHs nanostructure was confirmed by advanced characterization techniques and the release profile of cefepime was analysed with the respect to pH of the simulated media.

Preparation and characterization of ethylene-vinyl acetate/halloysite nanotube nanocomposites

2015 ◽  
Vol 50 (8) ◽  
pp. 3237-3245 ◽  
Author(s):  
Hossein Cheraghi Bidsorkhi ◽  
Hossein Adelnia ◽  
Raheleh Heidar Pour ◽  
Mohammad Soheilmoghaddam
Keyword(s):  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Halloysite Nanotube

The Compatibility Research of the Organic Montmorillonites with SEBS

2014 ◽  
Vol 1044-1045 ◽  
pp. 128-132
Author(s):  
Chen Jie Shi ◽  
Xiao Yan Li ◽  
Xia Wang ◽  
Yuan Wen Wang ◽  
Zhen Lu ◽  
...  
Keyword(s):  
Testing Machine ◽  
Melt Blending ◽  
X Ray Diffraction ◽  
Exchange Method ◽  
Organic Modification ◽  
Layer Spacing ◽  
Ft Ir ◽  
Universal Material Testing Machine ◽  
Material Testing Machine

To improve the compatibility of montmorillonite (MMT) with polymer. A kind of organic intercalation agent was applied in the intercalating organic modification of montmorillonite (OMMT) through ion exchange method, and a kind of silane coupling agent was further used to do the organic treatment. The SEBS/OMMTs composites were also prepared by melt blending. Structure and characterization of the modified MMTs were investigated by Fourier Transform infrared (FT-IR), wide angle X-ray diffraction (WAXRD), and the thermal stability were characterized by Thermogravimetric analysis (TGA). The dispersion status of MMTs were evaluated by scanning electron microscope (SEM) and the composites were tested by universal material testing machine. The FTIR results initial displayed that OMMTs had the absorption peak of organic functional groups. The XRD results showed that compared to Na+-MMT(1.47 nm), the layer spacing of H-OMMT increased to 3.27 nm, the above two results showed the organic modification of MMT had succeed. The results of TGA showed that OMMTs had a weight loss of organics. The SEM demonstrated that H-OMMT had the best dispersion status in SEBS matrix, and Na+-MMT was the worst.

scholarly journals Incorporation of silver (I) ions within zeolite cavities and their photocatalytic reactivity for the decomposition ofN2OintoN2andO2

2003 ◽  
Vol 5 (1) ◽  
pp. 17-19 ◽  
Author(s):  
Woo-Sung Ju ◽  
Masaya Matsuoka ◽  
Masakazu Anpo
Keyword(s):  
Ion Exchange ◽  
Uv Light ◽  
Photocatalytic Decomposition ◽  
Effective Wavelength ◽  
In Situ Characterization ◽  
Exchange Method ◽  
Ft Ir ◽  
Ion Exchange Method

Ag+/ZSM-5 catalysts were prepared by an ion-exchange method. UV-irradiation of theAg+/ZSM-5 catalysts in the presence ofN2Oled to the photocatalytic decomposition ofN2OintoN2andO2at 298 K. Investigations of the effective wavelength of the irradiated UV-light for the reaction as well as the in-situ characterization of the catalysts by means of UV-Vis, photoluminescence and FT-IR spectroscopies revealed that the photoexcitation of theAg+−N2Ocomplexes formed between gaseousN2Oand the isolatedAg+ions exchanged within the zeolite cavities plays a significant role in the reaction.

Synthesis and Characterization of Ag-PILC Through the Formation of Ag@Montmorillonite Nanocomposite

NANO ◽  
2015 ◽  
Vol 10 (02) ◽  
pp. 1550031 ◽  
Author(s):  
Feng Rao ◽  
Shaoxian Song ◽  
Alejandro Lopez-Valdivieso
Keyword(s):  
Ag Nanoparticles ◽  
Silver Ions ◽  
Trisodium Citrate ◽  
X Ray Diffraction ◽  
Exchange Method ◽  
Ph Values ◽  
Transmission Electron ◽  
Bet Method ◽  
Novel Method

Ag pillared interlayered clays ( Ag -PILCs) were synthesized through a novel method, in which Ag nanoparticles were formed in montmorillonite interlayers. In this method, silver ions were first exchanged into montmorillonite interlayers, and then reduced into Ag nanoparticles by trisodium citrate at 100°C in aqueous solutions. The synthesized Ag @montmorillonite nanocomposite was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM), and its surface area was evaluated by using Brunauer–Emmet–Teller (BET) method. Compared to traditional PILCs synthesized through ion exchange method, the formed Ag -PILCs had better thermal stability and stronger structure because their pillars are nanoparticles. Furthermore, this method introduces a possibility to control the size of the pillars and thus the pore size of the PILCs, due to that the nanoparticle pillars can be modified on their forms and diameters in the synthesizing process. Also, it was found that the intercalating Ag nanoparticle pillars were formed at restricted pH values and silver ion concentrations.

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