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Title: Fe2O3–TiO2 core–shell nanorod arrays for visible light photocatalytic applications

Journal Article · · Catalysis Today
 [1];  [1];  [2];  [2];  [3];  [1]
  1. Univ. of Georgia, Athens, GA (United States)
  2. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
  3. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Georgia Regents Univ, Augusta, GA (United States)
+ Show Author Affiliations

By using the glancing angle deposition technique and post-deposition annealing, Fe2O3–TiO2 core-shell nanorod arrays with specific crystalline states can be designed and fabricated. The Fe2O3–TiO2 core-shell samples annealed at temperatures greater than 450°C formed α-Fe2O3 and anatase TiO2, and showed higher catalytic efficiency for the degradation of methylene blue (MB) under visible light illumination when compared with pure anatase TiO2 or α-Fe2O3 nanorod arrays. Solar conversion of carbon dioxide and water vapor in the presence of Fe2O3–TiO2 core-shell nanorod arrays was also investigated. Carbon monoxide, hydrogen, methane, and methanol along with other hydrocarbons were produced after only several hours’ exposure under ambient sunlight. It was determined that the core-shell structure showed greater efficiency for solar CO2 conversion than the pure TiO2 nanorod arrays.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC09-08SR22470
OSTI ID:
1254431
Alternate ID(s):
OSTI ID: 1373342
Report Number(s):
SRNL-STI-2015-00609; PII: S0920586115006847
Journal Information:
Catalysis Today, Vol. 270, Issue C; ISSN 0920-5861
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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  • Hawkeye, Matthew M.; Brett, Michael J.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 25, Issue 5, Article No. 1317 https://doi.org/10.1116/1.2764082
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Cited By (3)

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Related Subjects

Glancing angle deposition
nanorod arrays
core-shell Fe2O3-TiO2.