期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 51, 页码 16491-16497出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201201989
关键词
bismuth; nanotubes; photochemistry; solvothermal reactions; water treatment
资金
- National Natural Science Foundation of China [21171136, 20801043]
- Program for New Century Excellent Talents in University [NCET-09-0136]
- International Cooperation Program of Wuhan Science and Technology Bureau [201070934342, 201171034319, 201231234465]
Uniform bismuth oxide (Bi2O3) and bismuth subcarbonate ((BiO)2CO3) nanotubes were successfully synthesized by a facile solvothermal method without the need for any surfactants or templates. The synergistic effect of ethylene glycol (EG) and urea played a critical role in the formation of the tubular nanostructures. These Bi2O3 and (BiO)2CO3 nanotubes exhibited excellent CrVI-removal capacity. Bi2O3 nanotubes, with a maximum CrVI-removal capacity of 79 mg?g-1, possessed high removal ability in a wide range of pH values (311). Moreover, Bi2O3 and (BiO)2CO3 nanotubes also displayed highly efficient photocatalytic activity for the degradation of RhB under visible-light irradiation. This work not only demonstrates a new and facile route for the fabrication of Bi2O3 and (BiO)2CO3 nanotubes, but also provides new promising adsorbents for the removal of heavy-metal ions and potential photocatalysts for environmental remediation.
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