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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

Zeolites in Adsorption Processes: State of the Art and Future Prospects

open access: yesChemical Reviews, 2022
Zeolites have been widely used as catalysts, ion exchangers, and adsorbents since their industrial breakthrough in the 1950s and continue to be state-of the-art adsorbents in many separation processes. Furthermore, their properties make them materials of
Eduardo Pérez-Botella   +2 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

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

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 .
Bein, Thomas   +4 more
core   +1 more source

Silanol defect engineering and healing in zeolites: opportunities to fine-tune their properties and performances.

open access: yesChemical Society Reviews, 2021
Zeolites have been game-changing materials in oil refining and petrochemistry over the last 60 years and have the potential to play the same role in the emerging processes of the energy and environmental transition.
Izabel C Medeiros-Costa   +5 more
semanticscholar   +1 more source

Formation and characterization of inorganic membranes from zeolite-silica microcomposites [PDF]

open access: yes, 1988
Small crystals of zeolites (500-1000 nm) with two- and three-dimensional channel systems (faujasite and ZSM-5 structures) were embedded in amorphous thin films derived from TEOS hydrolyzed in alcoholic solution.
Barrer   +6 more
core   +1 more source

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