Results 21 to 30 of about 4,557,674 (294)

Adsorption of Methylene Blue Dye using Fe3O4 Magnetized Natural Zeolite Adsorbent

open access: yesJurnal Kimia Sains dan Aplikasi, 2021
Preparation and characterization of Fe3O4 magnetized natural zeolite adsorbent for adsorption of methylene blue dye have been carried out. Natural zeolite/Fe3O4 adsorbent preparation was carried out using coprecipitation of Fe2+ and Fe3+ ions (1: 2 mol ...
Donatus Rendo
doaj   +1 more source

PENCIRIAN DAN UJI AKTIVITAS KATALITIK ZEOLIT ALAM TERAKTIVASI

open access: yesJurnal Riset Kimia, 2015
Natural zeolite reserves are spread in Indonesia, but they are not yet used optimally. Generally, natural zeolite have poor crystalline, various pore size, low catalytic activity, and high contaminant.
Charlena -   +2 more
doaj   +1 more source

Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam

open access: yeseXPRESS Polymer Letters, 2021
In the present study, a new method for the synthesis of the open-cell soft polyurethane foam (PUF) is developed. Silver nanoparticles are synthesized on the surface of ultrafine grain (100–500 nm) natural zeolite particles and this zeolite is than placed
Gy. Czel   +5 more
doaj   +1 more source

Modification of Natural Zeolite for Anticorrosive Paint Preparation [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Metal surface coating occupies an important place in the industry. The most important external factor on metal surfaces is corrosion. Corrosion is a natural process that occurs because of a chemical reaction between the metal surfaces and the medium.
Şebnem Pekçioğlu   +3 more
doaj   +1 more source

THE EFFECT OF TYPE ZEOLITE ON THE GAS TRANSPORT PROPERTIES OF POLYIMIDE-BASED MIXED MATRIX MEMBRANES [PDF]

open access: yes, 2008
The permeation rates of O2, N2, CO2 and CH4 has been studied for polyimide-polyethersulfone (PI/PES) blends-zeolite mixed matrix membranes synthesized in our laboratory.
Ismail, Ahmad Fauzi   +7 more
core   +1 more source

Effect of Acid on Natural Zeolite Dealumination on Indigo Carmine Adsorption Capability

open access: yesJurnal Kimia Sains dan Aplikasi, 2018
Modifying natural zeolite with dealumination using H2SO4 and HCl, and its application to adsorb indigo carmine has been performed. Dealumination was carried out by reacting a natural zeolite with a mixture of KMnO4-H2SO4 and a mixture of KMnO4-HCl then ...
Nanik Sulistyowati   +2 more
doaj   +1 more source

Synthesis of Zeolite NaA from Low Grade (High Impurities) Indonesian Natural Zeolite

open access: yesIndonesian Journal of Chemistry, 2014
The zeolite NaA has been successfully synthesized from the low grade natural zeolite with high impurities. The synthesis method was started by mixing natural zeolite powder with NH4Cl aqueous solution in the reactor as pretreatment.
Asalil Mustain   +3 more
doaj   +1 more source

A comparative study of natural zeolite and synthetic zeolite as an additive in warm asphalt mixes

open access: yesMateriales de Construccion, 2013
Zeolite can be used as an ingredient in warm bituminous mixes to reduce manufacturing temperatures. The zeolite for this purpose is usually synthetic, but natural zeolite can also be used.
A. Alonso   +4 more
doaj   +1 more source

Hellenic Natural Zeolite as a Replacement of Sand in Mortar: Mineralogy Monitoring and Evaluation of Its Influence on Mechanical Properties

open access: yesGeosciences, 2012
HEU-type zeolite-rich volcaniclastic tuff (Hellenic natural zeolite) is used as a raw material for the production of lighter mortars. The addition of natural zeolite in mortar mixtures of sand and Portland cement leads to a decrease of up to 18.35% unit ...
Costas Sikalidis   +4 more
doaj   +1 more source

Synthesis of Zeolite Pellets From Natural Zeolite and Starch as Adsorbent For Fuel Grade Bioethanol Production [PDF]

open access: yes, 2012
Bioethanol is one of the alternative energy that needs to be kept under review, in terms of raw material sources, the fermentation and purification processes. In terms of purification process in order to standardize to be fuel grade, It is how to get dry
Anwar , Ma’ruf,, Neni , Damajanti
core   +1 more source

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