نتایج جستجو برای: magnetic montmorillonite

تعداد نتایج: 341258  

Journal: :Journal of environmental management 2005
G Montes-H B Fritz A Clement N Michau

Bentonites are widely used for waste repository systems because of their hydrodynamic, surface and chemical-retention properties. MX 80 bentonite (bentonite of Wyoming) contains approximately 85% Na/Ca-montmorillonite and 15% accessory minerals. The dominant presence of Na/Ca-montmorillonite in this clay mineral could cause it to perform exceptionally well as an engineered barrier for a radioac...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

nano zno/ montmorillonite composite were prepared by sol gel method under ultrasonic irradiation from directly mixing montmorillonite nano clay into zinc gel. the zn(ch3coo)2.2h2o and montmorillonite nano clay was used as precursor. the zinc acetate was dissolved in di water and, nh3 (aq) solution was dropped into the zinc solution until ph 9 consequently the zinc gel was produced. the montmori...

2017
Markus Schmid Sarah Merzbacher Nicola Brzoska Kerstin Müller Marius Jesdinszki

Citation: Schmid M, Merzbacher S, Brzoska N, Müller K and Jesdinszki M (2017) Improvement of Food PackagingRelated Properties of Whey Protein Isolate-Based Nanocomposite Films and Coatings by Addition of Montmorillonite Nanoplatelets. Front. Mater. 4:35. doi: 10.3389/fmats.2017.00035 improvement of Food Packagingrelated Properties of Whey Protein isolate-Based nanocomposite Films and coatings b...

Journal: :Journal of colloid and interface science 2010
Dimitrios Gournis Christina Papachristodoulou Enrico Maccallini Petra Rudolf Michael A Karakassides Dimitrios T Karamanis Marie-Hélène Sage Thomas T M Palstra Jean-François Colomer Konstantinos D Papavasileiou Vasilios S Melissas Nicolaos H Gangas

A highly ordered two-dimensional hybrid magnetic nanocomposite has been prepared by synthesizing and intercalating a new cationic aluminum-hydroxy ferric ferrocyanide compound into a cation-adsorbing nanoclay (montmorillonite). Chemical and structural properties were investigated by X-ray diffraction, transmission electron microscopy, thermogravimetric and differential thermal analyses, Fourier...

2016
Kang Peng Liangjie Fu Huaming Yang Jing Ouyang

Perovskite LaFeO3/montmorillonite nanocomposites (LaFeO3/MMT) have been successfully prepared via assembling LaFeO3 nanoparticles on the surface of montmorillonite with citric acid assisted sol-gel method. The results indicated that the uniform LaFeO3 nanoparticles were densely deposited onto the surface of montmorillonite, mainly ranging in diameter from 10 nm to 15 nm. The photocatalytic acti...

Journal: :ACS applied materials & interfaces 2011
Lev Bromberg Christine M Straut Andrea Centrone Eugene Wilusz T Alan Hatton

Montmorillonite K-10 functionalized with α-nucleophilic 2-pralidoxime (PAM) and its zwitterionic oximate form (PAMNa) is introduced as a versatile material for chemical protection against organophosphorous (OP) compounds such as pesticides and chemical warfare agents (CWA). Upon inclusion into the montmorillonite interlayer structure, the pyridinium group of PAMNa is strongly physisorbed onto a...

Journal: :The Journal of pharmacy and pharmacology 2009
Zhao Ma Li-Hui Long Jing Liu Yong-Xiao Cao

OBJECTIVES The aim was to evaluate the adsorbing effect of montmorillonite on uric acid, promoting diffusion of uric acid from blood to intestine, preventing absorption of uric acid in intestine and reducing uric acid level in serum. METHODS The adsorbing effect of montmorillonite on uric acid was observed in vitro. The intestine and blood vessel of rats were circularly perfused with intestin...

2002
M A Bahmaniar

In order to evaluate the effects of parent material on clay mineralogy in northface of the Elborz mountain area that is covered with deciduous trees, five mountain physiographical units with dolomite, sandstone, marl, limestone and conglomera parent material were selected and in each physiographical unit some soil profiles were studied. Soil samples were taken from different horizons and leyers...

Journal: :Environmental science & technology 2010
Zhiguo Pei Xiao-Quan Shan Jingjing Kong Bei Wen Gary Owens

The coadsorption of ciprofloxacin (Cip) and Cu(II) on montmorillonite and kaolinite was studied between pH 4.0 and 9.5. At pH < 5.0, Cu(2+), Cip(+) and [Cu(II)(Cip(+/-))](2+) were the main species in solution. Between pH 5.0-7.0 [Cu(II)(Cip(+/-))](2+) was the dominant complex species. Above pH 8.0 [Cu(II)(Cip(-))(2)](0) precipitated. The presence of Cu(II) exerted no effect on the Cip sorption ...

2010
Yanbo Wang Jianzhong Han

In this study, we investigate the interaction of Rhodopseudomonas Palustris (R. Palustris) with montmorillonite clay. The adsorption of bacteria on the clay surface was also determined as a function of the initial bacterial quantity, pH, temperature and ionic strength. At different initial bacterial quantities, the percentage of bacteria adsorbed ranged from 61.07% to 77.57%, and the higher per...

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