Microporous Ni-Doped TiO2 film Photocatalyst by Plasma Electrolytic Oxidation
Ni-doped TiO2 film catalysts were prepared by a plasma electrolytic oxidation (PEO) method and were mainly characterized by means of SEM, EDS, XRD, XPS, and DRS, respectively. The effects of Ni doping on the structure, composition and optical absorption property of the film catalysts were investigat...
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Published in | ACS applied materials & interfaces Vol. 2; no. 9; pp. 2617 - 2622 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
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United States
American Chemical Society
01.09.2010
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Abstract | Ni-doped TiO2 film catalysts were prepared by a plasma electrolytic oxidation (PEO) method and were mainly characterized by means of SEM, EDS, XRD, XPS, and DRS, respectively. The effects of Ni doping on the structure, composition and optical absorption property of the film catalysts were investigated along with their inherent relationships. The results show that the film catalyst is composed of anatase and rutile TiO2 with microporous structure. Doping Ni changes the phase composition and the lattice parameters (interplanar crystal spacing and cell volume) of the films. The optical absorption range of TiO2 film gradually expands and shifts to the red with increasing dosages. Both direct and indirect transition band gaps of the TiO2 films are deduced consequently. Moreover, the photocatalytic activity of the film catalysts for splitting Na2S+Na2SO3 solution into H2 is enhanced by doping with an appropriate amount of Ni. The as-prepared TiO2 film catalyst doping with 10 g/L of Ni(Ac)2 presents the highest photocatalytic reducing activity. |
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AbstractList | Ni-doped TiO2 film catalysts were prepared by a plasma electrolytic oxidation (PEO) method and were mainly characterized by means of SEM, EDS, XRD, XPS, and DRS, respectively. The effects of Ni doping on the structure, composition and optical absorption property of the film catalysts were investigated along with their inherent relationships. The results show that the film catalyst is composed of anatase and rutile TiO2 with microporous structure. Doping Ni changes the phase composition and the lattice parameters (interplanar crystal spacing and cell volume) of the films. The optical absorption range of TiO2 film gradually expands and shifts to the red with increasing dosages. Both direct and indirect transition band gaps of the TiO2 films are deduced consequently. Moreover, the photocatalytic activity of the film catalysts for splitting Na2S+Na2SO3 solution into H2 is enhanced by doping with an appropriate amount of Ni. The as-prepared TiO2 film catalyst doping with 10 g/L of Ni(Ac)2 presents the highest photocatalytic reducing activity. |
Author | Li, ChunXiang Tian, Shujun Jia, Fangzhou Bai, Xuefeng Jiang, Zhaohua Yao, Zhongping |
Author_xml | – sequence: 1 givenname: Zhongping surname: Yao fullname: Yao, Zhongping – sequence: 2 givenname: Fangzhou surname: Jia fullname: Jia, Fangzhou – sequence: 3 givenname: Shujun surname: Tian fullname: Tian, Shujun – sequence: 4 givenname: ChunXiang surname: Li fullname: Li, ChunXiang – sequence: 5 givenname: Zhaohua surname: Jiang fullname: Jiang, Zhaohua – sequence: 6 givenname: Xuefeng surname: Bai fullname: Bai, Xuefeng |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/20799710$$D View this record in MEDLINE/PubMed |
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SubjectTerms | Catalysis Crystallization - methods Gases - chemistry Hot Temperature Light Materials Testing Membranes, Artificial Miniaturization Nickel - chemistry Nickel - radiation effects Oxidation-Reduction Photochemistry - methods Porosity - radiation effects Titanium - chemistry Titanium - radiation effects |
Title | Microporous Ni-Doped TiO2 film Photocatalyst by Plasma Electrolytic Oxidation |
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