Journal article
One-pot photoassisted synthesis, in situ photocatalytic testing for hydrogen generation and the mechanism of binary and copper promoted titanium dioxide
Photochemical & photobiological sciences, v 16(6), pp 916-924
01 Jun 2017
PMID: 28439592
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
For the sustainable production of hydrogen by photocatalysis, the use of renewable resources such as water, organic compounds from plant biomass and earth abundant metal promoters is desired. We herein describe the previously not reported "one-pot" photoassisted synthesis of a binary metal-nitrogen promoted Cu(0)-N-TiO2 photocatalyst from a N-TiO2 precursor by photodeposition of copper directly in the photocatalytic suspension. The N-TiO2 contains nanocrystalline anatase as found by XRD and Raman spectroscopy. X-ray Photoelectron Spectroscopy (XPS) and Electron Spin Resonance (ESR) spectroscopy indicate that a nitrogen promoter is present as a substitutional site. The scheme of relaxation of a photoexcited charge through a substitutional nitrogen induced midgap states in N-TiO2 is proposed. The binary promoted Cu(0)-N-TiO2 photocatalyst prepared from N-TiO2 by "one-pot" photodeposition of copper in the suspension showed a high activity in the in situ hydrogen generation under near-UV/visible light with glycerol in water, up to 675 mu mol g(-1) h(-1). The "one-pot" photoassisted synthesis and mechanism of operation of the Cu(0)-N-TiO2 photocatalyst are studied by the complementary in situ spectroscopic methods.
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Details
- Title
- One-pot photoassisted synthesis, in situ photocatalytic testing for hydrogen generation and the mechanism of binary and copper promoted titanium dioxide
- Creators
- Sean Taylor - Rutgers, The State University of New JerseyMihir Mehta - Rutgers, The State University of New JerseyDmitri Barbash - Drexel UniversityAlexander Samokhvalov - Rutgers, The State University of New Jersey
- Publication Details
- Photochemical & photobiological sciences, v 16(6), pp 916-924
- Publisher
- Springer Nature
- Number of pages
- 9
- Grant note
- 20241; 202221 / Research Corporation for Science Advancement (RCSA); Research Corporation for Science Advancement
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000403432200012
- Scopus ID
- 2-s2.0-85021634462
- Other Identifier
- 991019168375304721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Biochemistry & Molecular Biology
- Biophysics
- Chemistry, Physical