Anchoring Semiconductor and Metal Nanoparticles on a Two-Dimensional Catalyst Mat. Storing and Shuttling Electrons with Reduced Graphene Oxide
Abstract
Using reduced graphene oxide (RGO) as a two-dimensional support, we have succeeded in selective anchoring of semiconductor and metal nanoparticles at separate sites. Photogenerated electrons from UV-irradiated TiO(2) are transported across RGO to reduce silver ions into silver nanoparticles at a location distinct from the TiO(2) anchored site. The ability of RGO to store and shuttle electrons, as visualized via a stepwise electron transfer process, demonstrates its capability to serve as a catalyst nanomat and transfer electrons on demand to adsorbed species. These findings pave the way for the development of next generation catalyst systems and can spur advancements in graphene-based composites for chemical and biological sensors.
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Graphene is an excellent supporting matrix for semiconductor nanoparticles because of its superior electron mobility (ca. 4000 cm2 V-1 s-1) and high specific surface area (ca. 2600 m2 g-1).
“graphene (G), a single-layer of graphite, is considered to be an excellent supporting matrix for semiconductor nanoparticles, because of its superior electron mobility (ca. 4000 cm 2 V -1 s -1 ) and high specifi c surface area (ca. 2600 m 2 g -1 ). [ 116-121 ]”
From 2D Transition‐Metal‐Dichalcogenide‐Nanosheet‐Based Composites for Photocatalytic and Electrocatalytic Hydrogen Evolution Reactions (2016) · cites this paper as [117]
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A review of integrated photocatalyst adsorbents for wastewater treatment
Yahya, N., Aziz, F., Jamaludin, N. A., A. Mutalib, M., Ismail, A. F., W. Salleh, W. N., Jaafar, J., Yusof, N., & A. Ludin, N. (2018) · Journal of Environmental Chemical Engineering · doi:10.1016/j.jece.2018.06.051 · Cited by 303 · see citing works
- Authors
- Lightcap, I. V., Kosel, T. H., & Kamat, P. V.
- Affiliations
- University of Notre Dame (US)
- Corresponding author
- Kamat, Prashant V.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-01-07
- Volume
- 10
- Issue
- 2
- Pages
- 577-583
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2094733040
- Cited by
- 1,044
- References
- 1
- Citations by year
- 2026: 16 · 2025: 12 · 2024: 20 · 2023: 19 · 2022: 37 · 2021: 43 · 2020: 56 · 2019: 61 · 2018: 72 · 2017: 85 · 2016: 89 · 2015: 116 · 2014: 114 · 2013: 102 · 2012: 101
- FWCI
- 47.70
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Nano Letters (publishedVersion)
- PubMed (publishedVersion)
- Figshare (submittedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
- Keywords
- reduced graphene oxide, nanoparticle anchoring, titanium dioxide nanoparticles, silver nanoparticles, electron shuttling, electron storage, photoinduced electron transfer, graphene composites, chemical sensors, biosensors
- MeSH terms
- Adsorption, Carbon, Catalysis, Electrons, Graphite, Materials Testing, Oxides, Semiconductors, Biosensing Techniques, Nanotechnology, Nanostructures, Metal Nanoparticles
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