Fabricating rutile nanopins on an anatase hollow sphere structure with enhanced photoactivity performance
نویسندگان
چکیده
منابع مشابه
Preparation and photoactivity of nanostructured anatase, rutile and brookite TiO2 thin films.
Photoactive films consisting of pure anatase, brookite or rutile TiO2 were prepared by dip coating from water dispersions obtained by using TiCl4 as the precursor under similar mild experimental conditions.
متن کاملBand alignment of rutile and anatase TiO2
The most widely used oxide for photocatalytic applications owing to its low cost and high activity is TiO2. The discovery of the photolysis of water on the surface of TiO2 in 19721 launched four decades of intensive research into the underlying chemical and physical processes involved2–5. Despite much collected evidence, a thoroughly convincing explanation of why mixed-phase samples of anatase ...
متن کاملEXAFS Study of Rutile and Anatase
T w o crystallographic forms of TiC>2 (rutile and anatase) were subject to a n extended x r a y absorption fine structure study a t the K threshold of t i tanium. D a t a analysis was carried out b y Fourier methods and curve fitting techniques. Using the theoretical phases, T i 0 bond distances of 1.93(1) A were derived both for ruti le and anatase, as compared to the crystallographic values o...
متن کاملSoft-Template Synthesis of Mesoporous Anatase TiO₂ Nanospheres and Its Enhanced Photoactivity.
Highly crystalline mesoporous anatase TiO₂ nanospheres with high surface area (higher than P25 and anatase TiO₂) are prepared by a soft-template method. Despite the high specific surface area, these samples have three times lower equilibrium adsorption (<2%) than Degussa P25. The rate constant of the mesoporous anatase TiO₂ (0.024 min-1) reported here is 364% higher than that of P25 (0.0066 min...
متن کاملThree-phase junction for modulating electron-hole migration in anatase-rutile photocatalysts.
The heterophase solid-solid junction as an important type of structure unit has wide applications for its special mechanics and electronic properties. Here we present a first three-phase atomic model for the anatase-rutile TiO2 heterophase junction and determine its optical and electronic properties, which leads to resolution of the long-standing puzzles on the enhanced photocatalytic activity ...
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ژورنال
عنوان ژورنال: RSC Advances
سال: 2017
ISSN: 2046-2069
DOI: 10.1039/c7ra11910k