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J Colloid Interface Sci. 2011 Feb 1;354(1):109-15. doi: 10.1016/j.jcis.2010.10.035. Epub 2010 Oct 21.

High-performance TiO(2) from Baker's yeast.

Author information

1
Shandong Key Laboratory of Glass and Ceramic, Department of Materials Science and Engineering, Shandong Institute of Light Industry, Jinan 250353, China. hewen1960@126.com

Abstract

Based on the biomineralization assembly concept, a biomimetic approach has been developed to synthesize high-performance mesoporous TiO(2). The key step of this approach is to apply Baker's yeast cells as biotemplates for deriving the hierarchically ordered mesoporous anatase structure. The mechanism of formation of the yeast-TiO(2) is revealed by characterizing its morphology, microstructure, and chemical composition. The yeast-TiO(2) exhibits outstanding photocatalytic performance. Under visible-light irradiation, the removal efficiency of chemical oxygen demand (COD) and color of the paper industry wastewater has reached 80.3% and nearly 100%, respectively. The approach may open new vistas for fabricating advanced mesoporous materials under ambient condition.

PMID:
21071036
DOI:
10.1016/j.jcis.2010.10.035
[Indexed for MEDLINE]

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