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XANES studies of photocatalytic active species in nano TiO2–SiO2 by Tung Li Hsiung; H. Paul Wang; H.C. Wang is a Materials Science article available to read on EtoBox.
What is XANES studies of photocatalytic active species in nano TiO2–SiO2 about?
Combined post-edge XANES (X-ray absorption near-edge structural) and 29 Si magic angle spinning solid-state nuclear magnetic resonance (MAS SSNMR) observations show that Ti was dispersed in the frameworks of nano SiO 2 (synthesized with the sol-gel method). In addition, the nano TiO 2 -SiO 2 photocatalyst have features such as A 1 (4969 eV), A 2 (4970.5 eV) and A 3 (4972 eV) that can be attributed to 1s-to-3d transitions for four-(TiO 4 ), five-((Ti 1⁄4 O)O 4 ), and six-(TiO 6 ) coordinated Ti species, respectively. The A 2 ((Ti 1⁄4 O)O 4 ) in TiO 2 -SiO 2 may be the main active species, for instance, in the photocatalytic decomposition of trace 2-chlorophenol in H 2 O. This work exemplifies the utilization of XANES to reveal the active species in nano photocatalysts in detail.
Who reads XANES studies of photocatalytic active species in nano TiO2–SiO2?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Tung Li Hsiung; H. Paul Wang; H.C. Wang
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0969-806X)
- Published
- 2006
- Language
- EN
- Field
- Materials Science (Physical Sciences)