نتایج جستجو برای: sodium montmorillonite nammt

تعداد نتایج: 190072  

2012
Martin RELI Marcel ŠIHOR Kamila KOČÍ Petr PRAUS Ondřej KOZÁK Lucie OBALOVÁ

The reduction of CO2 by photocatalysts is one of the most promising methods since CO2 can be reduced to useful compounds by irradiating it with UV light at room temperature and ambient pressure. The aim of this work was to assess the effect of a reaction media on CO2 photocatalytic reduction yields over ZnS nanoparticles deposited on montmorillonite (ZnS-MMT). Four different reaction media, suc...

Journal: :علوم و تکنولوژی پلیمر 0
نیلوفر بهرامی پناه تهران، دانشگاه پیام نور، گروه شیمی، صندوق پستی 3697-19395 ایمان دانایی آبادان، دانشگاه صنعت نفت، دانشکده نفت آبادان، صندوق پستی 63187-14331-619 بهروز مقدسی بقا تهران، دانشگاه پیام نور، گروه شیمی، صندوق پستی 3697-19395

in recent years many research works have been carried out on anti-corrosive nanocomposites coatings containing mineral reinforcements. the most important criteria in these attempts are polymerization method and the type of matrix and reinforcement of nanocomposites. in this regard, the physical and mechanical properties of the polymers in which a small amount of filler is used can be improved. ...

حسینی, حدیث, حمیدپور, محسن, دشتی, حسین, رنجبرکریمی, رضا, شمشیری, حسین, شیرانی, حسین,

Heavy metals decrease plant growth due to disorder in enzyme activities and destroying of protein structure. Since corn is an important crop in human and poultry nutrition, in this greenhouse experiment, the effect of modified polyacrylamide and montmorillonite on growth parameters and chlorophyll fluorescence of corn (Zea mays L.) grown in two polluted soils with Cd and Pb (sandy and sandy loa...

Journal: :Minerals 2021

This work reports the behavior of montmorillonite–magnetite mixtures varying composition in aqueous dispersions and evaluates their adsorbing properties using a cationic organic pollutant, methylene blue (MB+), an anionic inorganic arsenate (As(V)), as species. The effects presence montmorillonite on As(V) adsorption by magnetite MB+ clay were specially addressed. simple mixture dispersion with...

2006
ROBERT M. GARRELS

Chemical activity diagraoas , prepared to illustrate the properties expected if mixed-layer montmorillonite/illite is regarded as a solid solution, are compared to those derived from a treatment of these materials as a mixture of two phases. If the system is a solid solution, the coexisting aqueous solution should range from higher dissolved silica contents in the presence of kaolinite and a mo...

2006
Susanta Samajdar Frederick F. Becker Bimal K. Banik

Montmorillonite impregnated with bismuth nitrate has been found to be an excellent reagent for the synthesis of several nitro compounds of biological significance in high yield.

1988
Haixia Lin Jinchang Ding Xianten Chen Ziyi Zhang

A mild and efficient catalytic method for synthesis of 5-alkoxycarbonyl-4-aryl-3, 4dihydropyrimidin-2(1H)-ones using KSF montmorillonite as catalyst is described.

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