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Author Cao, Chunlan ♦ Hu, Chenguo ♦ Shen, Weidong ♦ Wang, Shuxia ♦ Song, Sihong ♦ Wang, Mingjun
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NANOSCIENCE AND NANOTECHNOLOGY ♦ DEPOSITION ♦ DOPED MATERIALS ♦ ELECTROCHEMISTRY ♦ FLUORINE ♦ GLASS ♦ HETEROJUNCTIONS ♦ HYDROTHERMAL SYNTHESIS ♦ IRON OXIDES ♦ NANOPARTICLES ♦ PERFORMANCE ♦ SILVER CHLORIDES ♦ SPECTROSCOPY ♦ SUBSTRATES ♦ SURFACES ♦ TIN OXIDES ♦ TITANIUM OXIDES ♦ VISIBLE RADIATION
Abstract Highlights: • Fe{sub 2}O{sub 3}@TiO{sub 2} heterostructure was fabricated by two-step method. • The photoelectrochemical properties were studied upon visible light irradiation. • Fe{sub 2}O{sub 3}@TiO{sub 2} heterostructure shows superior photoelectrochemical property. • A possible mechanism for enhanced photoelectrochemical property was put forward. - Abstract: Fe{sub 2}O{sub 3}@TiO{sub 2} heterostructure nanorod arrays were synthesized on a fluorine-doped tin oxide conductive (FTO) glass substrate via two-step method for improving photoelectrochemical activity of TiO{sub 2}. The TiO{sub 2} nanorod arrays on FTO substrate were first prepared by hydrothermal method and then Fe{sub 2}O{sub 3} nanoparticles were coated onto the surface of TiO{sub 2} nanorod arrays through chemical bath deposition. The heterojunction yielded a photocurrent density of 39.75 μA cm{sup −2} at a bias potential of 0 V (vs. Ag/AgCl) under visible light irradiation, which is 2.2 times as much as that produced by the pure TiO{sub 2} nanorod arrays. The enhanced photoelectrochemical activity is attributed to the extension of the light response range and efficient separation of photogenerated carriers. Our results have demonstrated the advantage of the novel Fe{sub 2}O{sub 3}@TiO{sub 2} heterojunction and will provide a new path to the fabrication of heterostructural materials.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-10-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 70


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