Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 4, Pages 2407-2414Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am4047975
Keywords
SnO2 hollow nanospheres; formation mechanism; selective adsorption; bacterial inactivation; scavenger study
Funding
- Hong Kong Scholars Program [XJ2012037]
- Postdoctoral Science Foundation of China [2012T50690, 2013M531751]
- NSFC [21103131, 51272199, 51320105001]
- Research Grant Council, Hong Kong SAR Government [GRF476811]
- 973 Program [2013CB632402, 2010CB923200]
- 863 Program [2012AA062701]
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Highly porous surface fluorinated SnO2 hollow nanospheres (SnO2(F) HNS) were produced in high yield by a hydrothermal treatment of stannous fluoride in the presence of hydrogen peroxide. Two important processes in terms of oriented self-assembly and in situ self-transformation were highlighted for the formation of as-prepared SnO2(F) HNS, which were largely relying on the directing effects of selected specific chemical species in the present synthesis system. Significantly, these SnO2(F) HNS showed considerable activity in photocatalytic inactivation of a surface negatively charged bacterium, Escherichia coli K-12, in aqueous saline solution. The dominant reactive species involved in the inactivation process were also identified.
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