نتایج جستجو برای: structure zeolite

تعداد نتایج: 1575663  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1981

Fouladi Dehaghi, Behzad , Mosavi Ghahfarokhi, Maryam , Rangkooy, Hosseinali ,

Introduction: Ethylbenzene is a volatile organic compound used in many industries, including oil and gas, oil colored and insecticides. Due to the toxic effects of this chemical substance, control and elimination of this vapor is necessary. Photocatalytic degradation is a possible method to remove organic compounds from air. This study was performed to determine the efficiency of photocatalytic...

Journal: :آب و خاک 0
فرحناز سهراب نادر عباسی آزاده مهدی پور

introduction: soil structural stability affects the profitability and sustainability of agricultural systems. particle size distribution (psd) and aggregate stability are the important characteristics of soil. aggregate stability has a significant impact on the development of the root system, water and carbon cycle and soil resistance against soil erosion. soil aggregate stability, defined as t...

2011
Kunihiro Takahashi

Based on recently published papers, this article introduces the characteristics, hydrogen storage capacity, and economic advantages of the adsorptive carbon system, zeolite, and glass microspheres as possible methods of hydrogen storage. The adsorbents for hydrogen storage now available on the market are activated carbon and zeolite. In terms of hydrogen adsorption, zeolite can adsorb 1 wt perc...

Journal: :Journal of the American Chemical Society 2004
Trong-On Do Andrei Nossov Marie-Anne Springuel-Huet Celine Schneider Jeremy L Bretherton Colin A Fyfe Serge Kaliaguine

Ultrahigh-field 27Al MAS and MQMAS NMR and 129Xe NMR were used to characterize the zeolite-coated SBA-15 materials. This study shows evidence that zeolite nanoclusters are coated on the mesopore surface of SBA-15. These techniques are useful for the detection of zeolite nanoclusters and different aluminum environments in zeolite/aluminosilicate composites, which are difficult or even impossible...

Journal: :Vojnosanitetski pregled 2011
Zorica Basić Vesna Kilibarda Silva Dobrić Radmila Resanović

BACKGROUND/AIM Zeolites are the hydratised alumosilicates of alcali and earthalcali cations, which have a long three-dimensional crystal structure. Preparations on the basis of zeolites are used for adsorption of organic and nonorganic toxic substances and they, also, find more and more use in veterinary and human medicine and pharmacy. The aim of this study was to evaluate the possibilities of...

Journal: : 2022

The synthesis of NaY-zeolite was performed hydrothermally. preparation the bifunctional catalysts achieved by loading NH4Y-zeolite with a cheap Zr metal, as second tiny amounts Pt to compose Pt-Zr/Y-zeolite catalyst. Different characterization methods (i.e., XRD, SEM, EDX, BET, and AFM) were used investigate catalyst properties. catalytic performance studied performing hydroisomerization n-hept...

2012
Youn - Ku Nam Tak - Hyun Kim Myunjoo Lee

The ionizing radiation of livestock wastewater for the removal of nitrogen and phosphorus was studied in the presence of a natural zeolite. The feasibility of a combined process of zeolite ion exchange and electron beam irradiation of livestock wastewater was also investigated. The removal efficiencies of NH4-N, T-N and T-P were significantly enhanced by electron beam irradiation after zeolite ...

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