Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 22, Issue 15, Pages 3233-3238Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201200414
Keywords
titanium dioxide; photocatalysis; heteroatoms; water splitting
Categories
Funding
- Major Basic Research Program, Ministry of Science and Technology of China [2009CB220001]
- NSFC [50921004, 51002160, 21090343]
- Solar Energy Initiative of the Chinese Academy of Sciences
- Informalization Construction Project of CAS [INFO-115-B01]
- GPU project of MOF, China [ZDYZ2008-2-A12]
- Institute of Metals Research
- Shenyang National Laboratory for Materials Science
- Engineering and Physical Sciences Research Council [EP/E064248/1] Funding Source: researchfish
- EPSRC [EP/E064248/1] Funding Source: UKRI
Ask authors/readers for more resources
Understanding and manipulating the two half-reactions of photoinduced electron reduction and hole oxidation are key to designing and constructing efficient photocatalysts. Here, how the spatial distribution of the heteroatom modulates photocatalytic reduction (hydrogen evolution) and oxidation (oxygen evolution) reaction preferences is investigated by moving boron from the core to the shell of an anatase TiO2 microsphere along [001] via thermal diffusion control. The preference towards photocatalytic hydrogen and oxygen producing reactions from splitting water can be switched by creating a shell with an interstitial Bs+ (s = 3) gradient in the TiO2 microsphere. This switching stems from the downward shift of electronic band edges of the shell by a band bending effect that originates from the extra electrons coming from the interstitial Bs+. These results create new opportunities for designing and constructing efficient photocatalysts by spatial heteroatom engineering.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available