Characterization of Hollow Chemical Garden Fibers from Metal Salts and Water Glass |
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| Authors: | D. Balköse F. Özkan U. Köktürk S. Ulutan S. Ülkü G. Nişli |
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| Affiliation: | (1) Faculty of Engineering, Department of Chemical Engineering, Izmir Institute of Technology, Urla !["Idot"]("/content/75a3qdgk9ypmuvjv/xlarge304.gif") zmir, Turkey;(2) Faculty of Engineering, Department of Mining Engineering, 9 September University, 35100 Bornova zmir, Turkey;(3) Engineering Faculty, Department of Chemical Engineering, Ege University, 35100 Bornova-zmir, Turkey;(4) Science Faculty, Chemistry Department, Ege University, 35100 Bornova zmir, Turkey |
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| Abstract: | Hollow fibers formed from water glass and metal salts of IIA(Ca), VIIB(Fe, Co, Ni) and IB(Cu) groups were characterised in this study. Fragile fibres obtained herein broke down into small pieces during isolation and drying. Quantitative information about morphology, chemical composition and surface structure of the fibres were obtained. The diameter and wall thickness of the fibers were around 50  and 3 . respectively. They had particulate inner and smooth outer surfaces. Fibers had variable composition with metal (II) oxide/SiO2 ratio in the range 0.31 to 1.02. While group VIIB metal (II) fibres were amorphous, group IIA and IB metal (II) fibres were partially crystalline All the fibres had pores both in micro pore and meso pore region. The B.E.T surface area from N2 adsorption data was in the range of 10–249 m3 g–1 and 8–176 m2 g–1 from Langmuir and B.E.T models respectively. |
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| Keywords: | chemical garden water glass metal silicates nitrogen adsorption water vapour adsorption inductively coupled plasma |
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