Journal
RSC ADVANCES
Volume 3, Issue 48, Pages 25937-25943Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra44244f
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Funding
- Special Foundation of University of Science and Technology Liaoning [2011ZX14]
- Foundation of Anshan Administration of Science Technology [2013MS27]
- Scientific Research Foundation of Educational Department of Liaoning Province
- National Natural Science Foundation of China [L2013122, 51202207]
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Semiconductor alpha-MnO2 hierarchical hollow microspheres constructed with nanotubes have been facilely synthesized through a bubble template-based self-scrolling solution route. An energy-minimizing-driven self-assembly of alpha-MnO2 nanoparticles on the base of O-2 bubbles is responsible for the formation of hierarchical hollow microsphere structure. The as-obtained alpha-MnO2 products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and UV-vis-NIR spectrophotometry. The Li ion storage and water treatment performances of these alpha-MnO2 hierarchical hollow microspheres constructed with nanotubes were tested. A discharge capacity as high as 983 mA h g(-1) during the 30th cycle has been delivered at a current density of 300 mA g(-1). These as-prepared samples were also used as adsorbents in water treatment, and showed an excellent ability to remove organic pollutants without any other additives.
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