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Synergy of Low-Energy {101} and High-Energy {001} TiO2 Crystal Facets for Enhanced Photocatalysis
Abstract
Controlled crystal growth determines the shape, size, and exposed facets of a crystal, which usually has different surface physicochemical properties. Herein we report the size and facet control synthesis of anatase TiO2 nanocrystals (NCs). The exposed facets are found to play a crucial role in the photocatalytic activity of TiO2 NCs. This is due to the known preferential flow of photogenerated carriers to the specific facets. Although, in recent years, the main focus has been on increasing the surface area of high-energy exposed facets such as {001} and {100} to improve the photocatalytic activity, here we demonstrate that the presence of both the high-energy {001} oxidative and low-energy {101} reductive facets in an optimum ratio is necessary to reduce the charge recombination and thereby enhance photocatalytic activity of TiO2 NCs.
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Cited by
Why is anatase a better photocatalyst than rutile? - Model studies on epitaxial TiO2 films
Luttrell, T., Halpegamage, S., Tao, J., Kramer, A., Sutter, E., & Batzill, M. (2014) · Scientific Reports · doi:10.1038/srep04043 · Cited by 1,544
Titanium Dioxide Crystals with Tailored Facets
Liu, G., Yang, H. G., Pan, J., Yang, Y. Q., Lu, G. Q. (., & Cheng, H.-M. (2014) · Chemical Reviews · doi:10.1021/cr400621z · Cited by 1,084
Facet‐Engineered Surface and Interface Design of Photocatalytic Materials
Bai, S., Wang, L., Li, Z., & Xiong, Y. (2017) · Advanced Science · doi:10.1002/advs.201600216 · Cited by 429
Meng, A., Zhang, J., Xu, D., Cheng, B., & Yu, J. (2016) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2016.05.074 · Cited by 426
Gu, L., Wang, J., Zou, Z., & Han, X. (2014) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2014.01.021 · Cited by 294
Chen, Y., Soler, L., Cazorla, C., Oliveras, J., Bastús, N. G., Puntes, V. F., & Llorca, J. (2023) · Nature Communications · doi:10.1038/s41467-023-41976-2 · Cited by 157
Nitrogen Doped Reduced Graphene Oxide Based Pt–TiO2 Nanocomposites for Enhanced Hydrogen Evolution
Roy, N., Leung, K. T., & Pradhan, D. (2015) · The Journal of Physical Chemistry C · doi:10.1021/acs.jpcc.5b03870 · Cited by 102
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Metadata
- Authors
- Roy, N., Sohn, Y., & Pradhan, D.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-03-05
- Volume
- 7
- Issue
- 3
- Pages
- 2532-2540
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2320689837
- Cited by
- 504
- References
- 0
- FWCI
- 20.68
- Type
- journal article
- Language
- en
- Open access
- closed
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