Hydrogenated heterojunction of boron nitride and titania enables the photocatalytic generation of H-2 in the absence of noble metal catalysts
SCIE
SCOPUS
- Title
- Hydrogenated heterojunction of boron nitride and titania enables the photocatalytic generation of H-2 in the absence of noble metal catalysts
- Authors
- He, Zuoli; Kim, Chuhyung; Jeon, Tae Hwa; Choi, Wonyong
- Date Issued
- 2018-12
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- The increasing need for new materials capable of solar fuel production is central to the development of green energy economy. Utilizing solar energy for hydrogen generation is a great challenge due to inefficient light utilization and fast charge recombination. In this work, disorder-engineered black H-TiO2@BN with Ti-B chemically bonded interfaces was synthesized by employing BN nanosheets as the photocatalyst support. The hybridization of TiO2 with BN and hydrogenated thermal treatment work synergistically to enable the photo catalytic H-2 production without noble metal cocatalysts. The hybrid photocatalyst markedly enhanced light absorption, significantly retarded charge pair recombination, facilitated interfacial electron transfer, and lowered interfacial charge transfer resistance. As a result, the photocatalytic H-2 production activity of H-TiO2@BN that consisted of earth-abundant elements only was comparable to that of Pt-TiO2. The present hybrid engineering for the efficient charge separation and transfer via the formation of the interfacial chemical bonds should provide a useful methodology for designing the new types of hybrid photocatalysts.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/95471
- DOI
- 10.1016/j.apcatb.2018.06.008
- ISSN
- 0926-3373
- Article Type
- Article
- Citation
- APPLIED CATALYSIS B-ENVIRONMENTAL, vol. 237, page. 772 - 782, 2018-12
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