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Diffusion mechanism of water vapour in a zeolitic tuff rich in clinoptilolite 

Çakıcıoğlu Özkan, Seher Fehime; Ülkü, Semra (Springer, 2008-12)
The adsorption kinetics of H2O in a clinoptilolite rich zeolitic tuff was experimentally investigated at 18°C. In the identification of the diffusion mechanism the isothermal adsorption model equation was used. It was found ...
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Cure kinetics of epoxy resin-natural zeolite composites 

Cansever Erdoğan, Beyhan; Seyhan, Abdullah Tuğrul; Ocak, Yılmaz; Tanoğlu, Metin; Balköse, Devrim; Ülkü, Semra (Springer, 2008-12)
The cure kinetics of epoxy resin and epoxy resin containing 10 mass% of natural zeolite were investigated using differential scanning calorimetry (DSC). The conformity of the cure kinetic data of epoxy and epoxy-zeolite ...
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Clinoptilolite-rich mineral as a novel carrier for the active constituents present in Ginkgo biloba leaf extract 

Göktaş, Selda; Ülkü, Semra; Bayraktar, Oğuz (Elsevier, 2008-06)
The possible use of clinoptilolite-rich mineral as a novel carrier for the active constituents present in Ginkgo biloba leaf extract solutions was investigated. The flavonoid aglycone constituents were found to be selectively ...
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Microwave effect on ion-exchange and structure of clinoptilolite 

Akdeniz, Yelda; Ülkü, Semra (Springer, 2007-03)
The effect of microwave irradiation on the ion exchange degree and structure of clinoptilolite mineral has been examined in comparison with the conventional heat treatment in waterbath. Clinoptilolite-rich mineral from the ...
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The effect of HCl treatment on water vapor adsorption characteristics of clinoptilolite rich natural zeolite 

Çakıcıoğlu Özkan, Fehime; Ülkü, Semra (Elsevier, 2005-01)
In this study, water vapor adsorption properties of the clinoptilolite rich zeolite tuff, from Bigadic (Turkey), and its modified forms were examined. The modified forms were obtained by treating the tuff with HCl solutions ...
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A chromatographic study of carbon monoxide adsorption on a clinoptilolite-containing natural zeolitic material 

Narin, Güler; Yılmaz, Selahattin; Ülkü, Semra (Taylor & Francis, 2004-11)
In this study, the equilibrium and kinetic parameters for CO adsorption on clinoptilolite-rich natural zeolitic material were determined by the concentration pulse chromatography technique. Experiments were carried out at ...
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Silver, zinc, and copper exchange in a Na-clinoptilolite and resulting effect on antibacterial activity 

Top, Ayben; Ülkü, Semra (Elsevier, 2004-10)
Ag+-Na+, Zn2+-Na+, and Cu2+-Na+ equilibria for clinoptilolite-rich mineral from Gördes (Western Anatolia) were investigated at 25 °C and 0.1 N total solution normality. While silver exchange was favorable over the whole ...



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Ülkü, Semra (7)
Akdeniz, Yelda (1)Balköse, Devrim (1)Bayraktar, Oğuz (1)Cansever Erdoğan, Beyhan (1)Göktaş, Selda (1)Narin, Güler (1)Ocak, Yılmaz (1)Seyhan, Abdullah Tuğrul (1)Tanoğlu, Metin (1)... View MoreSubject
Clinoptilolite (7)
Adsorption (3)Zeolites (3)Diffusion (2)Ion exchange (2)Acid treatment (1)Adsorption equilibrium (1)Antibacterial activity (1)Antioxidant (1)Autocatalytic cure rate (1)... View MorePublication Typearticle (7)Language
eng (7)
Publication CategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı (7)Access Typeinfo:eu-repo/semantics/openAccess (7)Date Issued2008 (3)2004 (2)2005 (1)2007 (1)Full TextYes (7)

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