In:
Journal of the American Ceramic Society, Wiley, Vol. 92, No. s1 ( 2009-01)
Abstract:
A low‐temperature procedure for the synthesis of TiO 2 was developed using a water‐soluble titanium complex and enzymes. Titanium–lactate and titanium–glycolate complexes were used as precursors of TiO 2 . Digestive enzymes were chosen as biocatalysts for the synthesis of TiO 2 in aqueous solutions. TiO 2 powders were deposited from reaction solutions having optimal pH values for the enzymes to exhibit their catalytic activities for their original substrates. TiO 2 has been synthesized by an enzymatic reaction in an aqueous solution under ambient conditions. The XRD measurements indicated that TiO 2 powders thus obtained usually have an amorphous phase. However, after calcination at 550°C, the anatase phase was confirmed. Interestingly, the minor phase of TiO 2 , brookite, was found in the sample obtained from the titanium–glycolate complex catalyzed by lipase at pH 10 after calcination at 550°C.
Type of Medium:
Online Resource
ISSN:
0002-7820
,
1551-2916
DOI:
10.1111/jace.2009.92.issue-s1
DOI:
10.1111/j.1551-2916.2008.02685.x
Language:
English
Publisher:
Wiley
Publication Date:
2009
detail.hit.zdb_id:
2008170-4
detail.hit.zdb_id:
219232-9
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