Results 11 to 20 of about 180,400 (354)

Noble Metal Particles Confined in Zeolites: Synthesis, Characterization, and Applications

open access: yesAdvanced Science, 2019
Noble metal nanoparticles or subnanometric particles confined in zeolites, that is, metal@zeolite, represent an important type of functional materials with typical core–shell structure.
Yuchao Chai   +6 more
doaj   +2 more sources

Adsorption of heavy metals on natural zeolites: A review.

open access: yesChemosphere, 2023
Water pollution has jeopardized human health, and a safe supply of drinking water has been recognized as a worldwide issue. The increase in the accumulation of heavy metals in water from different sources has led to the search for efficient and ...
Lisbania Velarde   +4 more
semanticscholar   +1 more source

Regulation of the Si/Al ratios and Al distributions of zeolites and their impact on properties

open access: yesChemical Science, 2022
Zeolites are typically a class of crystalline microporous aluminosilicates that are constructed by SiO4 and AlO4 tetrahedra. Because of their unique porous structures, strong Brönsted acidity, molecular-level shape selectivity, exchangeable cations, and ...
Jialiang Li   +3 more
semanticscholar   +1 more source

Application of Zeolites in Agriculture and Other Potential Uses: A Review

open access: yesAgronomy, 2021
Excessive use of nitrogen fertilizer and inappropriate fertilization designs have negative results in agricultural ecosystems, such as considerable nitrogen losses through nitrogen dioxide (NO2) soil leaching and ammonia NH3 volatilization.
E. Cataldo   +7 more
semanticscholar   +1 more source

Selective catalytic reduction of NOx with NH3: opportunities and challenges of Cu-based small-pore zeolites

open access: yesNational Science Review, 2021
Zeolites, as efficient and stable catalysts, are widely used in the environmental catalysis field. Typically, Cu-SSZ-13 with small-pore structure shows excellent catalytic activity for selective catalytic reduction of NOx with ammonia (NH3-SCR) as well ...
Yulong Shan   +9 more
semanticscholar   +1 more source

Zeolites Enhance Soil Health, Crop Productivity and Environmental Safety

open access: yesAgronomy, 2021
In modern days, rapid urbanisation, climatic abnormalities, water scarcity and quality degradation vis-à-vis the increasing demand for food to feed the growing population necessitate a more efficient agriculture production system.
M. Mondal   +11 more
semanticscholar   +1 more source

Colloidal zeolites and zeolite membranes

open access: yesJ. Mater. Chem., 2002
The synthesis of zeolite membranes and thin films using the secondary growth process is briefly described. In this process colloidal zeolite particles (sols) are prepared hydrothermally and then subsequently deposited on substrates to produce uniform layers of controlled thickness.
S Kallus   +7 more
openaire   +5 more sources

Synthesis of Novel Perfluoroalkylglucosides on Zeolite and Non-Zeolite Catalysts [PDF]

open access: yesMolecules, 2015
Perfluoroalkylglucosides comprise a very important class of fluorine-containing surfactants. These compounds can be synthesized by using the Fisher reaction, starting directly from glucose and the required perfluoroalcohols. We wish to report on the use of zeolite catalysts of different structure and composition for the synthesis of ...
Janusz Nowicki   +2 more
openaire   +3 more sources

Agglomeration mechanism during the preparation of nickel(0) and iron(0) zeolites [PDF]

open access: yes, 1984
Magnetization measurements have been used to study the reduction process of Ni - zeolites and the thermal decomposition of iron pentacarbonyl adsorbed on NaY zeolites .
Ohlerich, U.   +4 more
core   +1 more source

Synthesis of ‘unfeasible’ zeolites [PDF]

open access: yesNature Chemistry, 2015
Zeolites are porous aluminosilicate materials that have found applications in many different technologies. However, although simulations suggest that there are millions of possible zeolite topologies, only a little over 200 zeolite frameworks of all compositions are currently known, of which about 50 are pure silica materials.
Michal Mazur   +9 more
openaire   +8 more sources

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