Results 31 to 40 of about 65,879 (291)

PEMANFAATAN ZEOLIT ALAM SEBAGAI MEDIA PENDUKUNG AMOBILISASI ENZIM α-AMILASE

open access: yesJurnal Riset Kimia, 2015
The utilization of natural zeolite as supporting media of α-amylase enzyme has been done. Natural zeolite which is activated with 3M HCl can remove impurities in the surface natural zeolite, uncover and widen the pores of the zeolite and activate ...
Upita Septiani, Agrina Lisma
doaj   +1 more source

Hydration process and compressive strength of cement pastes containing natural zeolite [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2016
This paper presents the results of the study examining the effect of natural zeolite from Igroš, Serbia, on the hydration and compressive strength of Portland cement based pastes, in which a part of cement has been replaced by natural zeolite.
Radeka Miroslava   +4 more
doaj   +1 more source

Thermophysical Properties of Kaolin–Zeolite Blends up to 1100 °C

open access: yesCrystals, 2021
In this study, the thermophysical properties such as the thermal expansion, thermal diffusivity and conductivity, and specific heat capacity of ceramic samples made from kaolin and natural zeolite are investigated up to 1100 °C. The samples were prepared
Ján Ondruška   +6 more
doaj   +1 more source

Natural zeolites: mineralogy and applications

open access: yesEuropean Journal of Mineralogy, 1991
After a brief description of the crystallochemical peculiarities of zeolites, which enable them to be used in many technological fields, the present and potential applications of natural zeolites are reviewed. The possibility of using Italian chabazite and phillipsite to reduce problems connected with nitrogen pollution is ...
PASSAGLIA, Elio, GALLI, Ermanno
openaire   +2 more sources

Effect of characteristics of natural zeolites on their geopolymerization

open access: yesCase Studies in Construction Materials, 2021
The properties of clinoptilolite-based geopolymers are investigated with a focus on the parameters affecting the reactivity of clinoptilolite in a geopolymer binder. A complete characterization of raw materials was carried out as well as a determination of the mineralogical composition, microstructure and mechanical properties of geopolymers.
Ozen, Sevgi, Uzal, Burak
openaire   +5 more sources

The Use of Natural Zeolite as A Catalyst for Esterification Reaction Between Glycerol and Oleic Acid

open access: yesReaktor, 2019
Natural zeolite in Indonesia generally divided into 2 types, which are mordernite and clinoptilolite. As far the use of zeolites is very limited. This experiment tries to use both types of natural zeolites to find out its work.
Anggara Diaz Ramadhan   +3 more
doaj   +1 more source

Fabrication Material Zeolite Modified by Fe with Treatment and Without High Energy Milling on Zeolite Materials [PDF]

open access: yes, 2015
Natural zeolite in Indonesia are generally found in bulk form and many impurities. The purpose of this research was obtaining iron modified zeolite with and without High Energy Milling treatment on zeolite material.
Grafiana, Nur Farida   +2 more
core  

Hydrothermal synthesis and characterization of zeolite from Malaysia’s natural kaolin for adsorption of sodium ion (NA+) from seawater [PDF]

open access: yes, 2020
Zeolite-A is widely known as aluminosilicate mineral that has been intensively used as an adsorbent in the adsorption process for desalination. Desalination is a technique to eliminate sodium ion and other minerals in the water. Because of the nature
Sazali, Norsuhailizah
core  

Role of Lewis acid sites of ZSM-5 zeolite on gaseous ozone abatement [PDF]

open access: yes, 2013
In this work, chemical interactions between ozone and zeolite surface active sites are studied in order to propose a process for gaseous ozone removal.
Andriantsiferana, Caroline   +4 more
core   +3 more sources

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

open access: yesAdvanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu   +2 more
wiley   +1 more source

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