Template‐free synthesis of single‐/double‐walled TiO2 nanovesicles: Potential photocatalysts for engineering application
Significance Single‐and double‐walled anatase TiO2 nanovesicles have been,
respectively, prepared by a template‐free hydrothermal treatment of Ti (SO4) 2 with H2O2
and urea. Photocatalytic degradation of Rhodamine B indicates that double‐walled TiO2
nanovesicles have an initial lower but a final higher photocatalytic efficiency than single‐
walled ones. All nanovesicles have significantly lower performance than commercially
available P25 TiO2. The enhanced capacity for UV light absorption and· OH radicals …
respectively, prepared by a template‐free hydrothermal treatment of Ti (SO4) 2 with H2O2
and urea. Photocatalytic degradation of Rhodamine B indicates that double‐walled TiO2
nanovesicles have an initial lower but a final higher photocatalytic efficiency than single‐
walled ones. All nanovesicles have significantly lower performance than commercially
available P25 TiO2. The enhanced capacity for UV light absorption and· OH radicals …
Significance
Single‐ and double‐walled anatase TiO2 nanovesicles have been, respectively, prepared by a template‐free hydrothermal treatment of Ti(SO4)2 with H2O2 and urea. Photocatalytic degradation of Rhodamine B indicates that double‐walled TiO2 nanovesicles have an initial lower but a final higher photocatalytic efficiency than single‐walled ones. All nanovesicles have significantly lower performance than commercially available P25 TiO2. The enhanced capacity for UV light absorption and· OH radicals production, large specific surface area, and unique hierarchical hollow architectures contribute to the enhanced photocatalytic activity and improved feasibility of anatase TiO2 nanovesicles for engineering applications. © 2015 American Institute of Chemical Engineers AIChE J, 61: 1478–1482, 2015
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