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Title: Fe 2O 3–TiO 2 core–shell nanorod arrays for visible light photocatalytic applications

By using the glancing angle deposition technique and post-deposition annealing, Fe 2O 3–TiO 2 core-shell nanorod arrays with specific crystalline states can be designed and fabricated. The Fe 2O 3–TiO 2 core-shell samples annealed at temperatures greater than 450°C formed α-Fe 2O 3 and anatase TiO 2, and showed higher catalytic efficiency for the degradation of methylene blue (MB) under visible light illumination when compared with pure anatase TiO 2 or α-Fe 2O 3 nanorod arrays. Solar conversion of carbon dioxide and water vapor in the presence of Fe 2O 3–TiO 2 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 CO 2 conversion than the pure TiO 2 nanorod arrays.
 [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)
Publication Date:
Report Number(s):
Journal ID: ISSN 0920-5861; PII: S0920586115006847
Grant/Contract Number:
AC09-08SR22470; AC819810; UC0066/PR#8T1764
Accepted Manuscript
Journal Name:
Catalysis Today
Additional Journal Information:
Journal Volume: 270; Journal Issue: C; Journal ID: ISSN 0920-5861
Research Org:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org:
Country of Publication:
United States
Glancing angle deposition; nanorod arrays; core-shell Fe2O3-TiO2.
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1373342