Abstract
Graphene oxide (GO) is a p-type semiconductor with a suitable band positions for photocatalytic watersplitting. GO sheets have a hydrophilic 2D carbon structure that allows for extensive chemical modification. This study presents strategies of tuning the conductivity type of GO from p-type to n-type for simultaneous evolutions of H2 and O2 under visible light irradiation. Further converting the n-type graphene oxide sheets to quantum dots results in stoichiometric evolution of H2 and O2 at 2-to-1 ratio. The quantum dots also serve as an energy-converting medium with upconverted photoluminescence to promote the activity of metal-oxide photocatalyts.
| Original language | English |
|---|---|
| Title of host publication | Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting |
| Subtitle of host publication | Global Challenges for Engineering a Sustainable Future |
| Publisher | AIChE |
| Pages | 264-266 |
| Number of pages | 3 |
| ISBN (Electronic) | 9781634390477 |
| Publication status | Published - 2014 Jan 1 |
| Event | Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future - San Francisco, United States Duration: 2013 Nov 3 → 2013 Nov 8 |
Publication series
| Name | Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future |
|---|
Other
| Other | Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future |
|---|---|
| Country | United States |
| City | San Francisco |
| Period | 13-11-03 → 13-11-08 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Environmental Engineering
- Chemical Engineering(all)
- Materials Chemistry
Cite this
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Graphene-oxide photocatalysts for water splitting and its upconverted photoluminescence. / Yeh, Te Fu; Teng, Hsisheng.
Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future. AIChE, 2014. p. 264-266 (Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Graphene-oxide photocatalysts for water splitting and its upconverted photoluminescence
AU - Yeh, Te Fu
AU - Teng, Hsisheng
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Graphene oxide (GO) is a p-type semiconductor with a suitable band positions for photocatalytic watersplitting. GO sheets have a hydrophilic 2D carbon structure that allows for extensive chemical modification. This study presents strategies of tuning the conductivity type of GO from p-type to n-type for simultaneous evolutions of H2 and O2 under visible light irradiation. Further converting the n-type graphene oxide sheets to quantum dots results in stoichiometric evolution of H2 and O2 at 2-to-1 ratio. The quantum dots also serve as an energy-converting medium with upconverted photoluminescence to promote the activity of metal-oxide photocatalyts.
AB - Graphene oxide (GO) is a p-type semiconductor with a suitable band positions for photocatalytic watersplitting. GO sheets have a hydrophilic 2D carbon structure that allows for extensive chemical modification. This study presents strategies of tuning the conductivity type of GO from p-type to n-type for simultaneous evolutions of H2 and O2 under visible light irradiation. Further converting the n-type graphene oxide sheets to quantum dots results in stoichiometric evolution of H2 and O2 at 2-to-1 ratio. The quantum dots also serve as an energy-converting medium with upconverted photoluminescence to promote the activity of metal-oxide photocatalyts.
UR - http://www.scopus.com/inward/record.url?scp=84911490140&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84911490140&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84911490140
T3 - Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future
SP - 264
EP - 266
BT - Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting
PB - AIChE
ER -