| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1642121 | Materials Letters | 2016 | 4 Pages |
•We produced biotemplated nanoparticles with bacterial morphologies.•Urea hydrolysis of metabolic processes was used.•We investigate various properties.•Hollow micro/nanostructures was inspired by nature way.
The preparation of rare earth metal oxide (CeO2) using bacteria with urea hydrolysis is reported. A urease-generated bacterium, Bacillus pasteurii (BP), was used to induce the precipitation of CeCO3OH crystals in aqueous solutions containing urea and Ce3+ ions. The CeCO3OH crystals were subsequently converted to CeO2 by its thermal decomposition. Hollow rod shaped (CeCO3OH and CeO2) micro/nanostructure was prepared by simple method under ambient conditions. The 13C cross polarization magic-angle spinning NMR spectra revealed the possible explanation of the interaction of organic–inorganic moieties and precipitation of ceria on cell wall of bacteria. This is a promising route of bacteria-templated metal oxide crystals to produce hollow micro/nanostructures with potential in various technical applications. The synthesis of bacteria-guided metal oxides is cheap, non-toxic and eco-friendly.
