Cation exchange in zeolites structure modification by using a microwave
tarafından
 
Akdeniz, Yelda.

Başlık
Cation exchange in zeolites structure modification by using a microwave

Yazar
Akdeniz, Yelda.

Yazar Ek Girişi
Akdeniz, Yelda.

Yayın Bilgileri
[s.n.]: [s.l.] 1999.

Fiziksel Tanımlama
xiii, 92 leaves.: ill.

Özet
In this research, characterization and modification of clinoptilolite minerals from different deposits have been studied to determine its utility for different Clinoptilolite minerals obtained from the source located in Western (FTIR) to determine the structural properties. The FTIR spectra of the samples showed the characteristic vibrations of the clinoptilolite framework. Thermal properties were determined using Differential Thermal Analyzer (DTA), Thermal Gravimetric Analyzer (TGA), and Differential Scanning Calorimetry (DSC). The analysis showed that the structure of the samples were stable up to 650 DC and due to the Fe203 present in the tuff, phase inversion was observed. Accelerated Surface Area and Porosimeter (ASAP 2010) used to determine the adsorptionrelated properties using N2 and Ar adsorption isotherms. The samples showed different adsorption behaviour toward each gas. The pore size distribution of clinoptilolite samples showed that they have mesaporous structure.The clinoptilolite was modified by ion exchange using 1N NaCI salt solution in waterbath, and in microwave maintained at 80 DC for 10 min, 60 min and 120 min. The efficiency of each method on ion exchange was compared. The Na+ amount in the zeolite was found to be 2.25 and 3.24 % by weight after 2 hours of exchange in waterbath and microwave, respectively. The results showed that microwave method used for modification was more efficient.

Konu Başlığı
Zeolites -- Spectra
 
Clinoptilolite -- Spectra
 
Fourier transform infrared spectroscopy
 
Ion exchange

Yazar Ek Girişi
Ülkü, Semra.

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Materials Science and Engineering.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Materials Science and Engineering.
 
İzmir Institute of Technology: Materials Science and Engineering--Thesis (Master).

Elektronik Erişim
Access to Electronic Version.


LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT000010TN948.Z4.A33 1999Tez Koleksiyonu