Results 31 to 40 of about 54,154 (288)
Resolving and Controlling Silicoaluminophosphate Zeolite Intergrowths and Mixtures. [PDF]
Adv Sci (Weinh)Low‐dose electron microscopy enables atomic‐resolution imaging of beam‐sensitive SAPO‐34/18 intergrowths, revealing their stacking sequences and spatial distributions under controlled Si content and SDA ratio. This work establishes a methodology linking controllable synthesis with atomic‐resolution microscopy to investigate structure–property ...
Ke Y +10 more
europepmc +2 more sources
Possibility of Modification of Zeolites by Iron Oxides and its Utilization for Removal of Pb(II) from Water Solutions [PDF]
Acta Montanistica Slovaca, 2004 Ion-exchange properties of cations from lattice and ions from solutions are characteristic for zeolites. Zeolites as sorbents are used in many branches of industry. Ion-exchange reactions of cations on zeolites have been a theme of many works.
Michal Lovás +4 more
doaj
Synthesis And Characterization Of Zeolites From Sodium Aluminosilicate Solution [PDF]
, 2007 Rangkaian siri sintetik zeolit telah berjaya disintesiskan daripada larutan natrium aluminosilikat dengan kepekatan Si dari 1 hingga 8 molar menggunakan habuk halus silika (fumed silica) dan natrium aluminat.
Ibrahim, Siti Aida
core +1 more source
International Journal of Coal Science & Technology, 2020 The fly ashes (Class F and C) have been successfully used as the main substrates in the hydrothermal syntheses of Na-A, Na-P1, Na-X and sodalite zeolites. Both ashes and their derivatives after milling with magnetic field grinder were used.
Piotr Kunecki +4 more
doaj +1 more source
Efficient transesterification over two-dimensional zeolites for sustainable biodiesel production
Green Energy & Environment, 2020 Basic zeolites have shown great potential as efficient catalysts for biodiesel production in the transesterification reactions. However, conventional three-dimensional (3D) basic zeolites generally suffer from limited base sites and severe mass-transfer ...
Hao Pang, Guoju Yang, Lin Li, Jihong Yu
doaj +1 more source
Synthesis of Novel Perfluoroalkylglucosides on Zeolite and Non-Zeolite Catalysts [PDF]
Molecules, 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 ...
Nowicki, Janusz +2 more
openaire +3 more sources
Kinetic and Thermodynamic Studies for Zeolites Synthesis
Zanco Journal of Pure and Applied Sciences, 2019 Zeolites are compounds which have many applications in chemistry and industry; therefore, studies of synthesis of zeolites are of great importance.
Rawand S. Abdullah +3 more
doaj +1 more source
Zeolite synthesis from low-cost materials and environmental applications: A review
Environmental Advances, 2020 Zeolites with the three-dimensional structures occur naturally or can be synthesized in the laboratory. Zeolites have versatile applications such as environmental remediation, catalytic activity, biotechnological application, gas sensing and medicinal ...
Abdul Khaleque +10 more
doaj +1 more source
Molecular dynamics as a tool to study heterogeneity in zeolites - Effect of Na cations on diffusion of CO and N in Na-ZSM-5 [PDF]
, 2014 Zeolites typically contain extra-framework cations to charge-compensate for trivalent Al atom substitutions in the SiO framework. These cations, such as Na, directly interact with quadrupolar guest molecules, such as CO and N, which move through their ...
Newsome, D. +7 more
core +2 more sources
Ethiopian natural zeolites for photocatalysis
Bulletin of the Chemical Society of Ethiopia, 2015 The combination of zeolites and photochemistry has recently shown excellent results due to the special structure of the zeolites that helps a better use of the solar energy improving the selectivity of the chemical reactions carried out.
K. Guesh +4 more
doaj +1 more source