NDLI: Adsorption of cobalt(II) ion by titanium-based oxides in high temperature water

Content Provider	Springer Nature Link
Author	Kim, Kwang Rag Lee, Sung Ho Paek, Seung Woo Chung, Hongsuk Yoo, Jae Hyung
Copyright Year	1999
Abstract	Titanium-based adsorbents such as TiO$_{2}$ and Fe-Ti-O were prepared by hydrolysis of Ti(OC$_{3}$H$_{7}$)$_{4}$ and alkalinizing an equimolar mixed solution of TiCL$_{4}$ and FeCl$_{2}$ followed by heat treatment of their hydroxides, respectively. The prepared Fe-Ti-O adsorbent was found to be stable nonstoichiometric ferrous and ferric titanium oxides with pseudobrookite and rutile structures. The Co$^{2+}$ adsorption characteristics of the adsorbent in high temperature water were investigated in the autoclave.Co $^{2+}$ adsorption capacity of the Fe-Ti-O adsorbent was determined to be larger man that of TiO$_{2}$ at high temperatures. The enthalpy changes of 34 and 49 kJ-mol$^{-1}$ due to the adsorption of Co$^{2+}$ on the TiO$_{2}$ and Fe-Ti-O adsorbents indicate that the adsorption is endothermic in the experimental temperature range (15-280 ‡C). From this preliminary study, titanium-based oxides are shown to have good potential applicability for reactor water purification as high temperature adsorption media.
Starting Page	34
Ending Page	39
Page Count	6
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	16
Issue Number	1
e-ISSN	19757220
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	TiO$_{2}$ Fe-Ti-O Adsorbents Cobalt(II) Ion Reactor Water Purification Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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