Fundamental studies of x-ray induced photocatalytic reaction on TiO2
Inquiry number
SOL-0000000922
Beamline
BL22XU (JAEA Actinide Science I)
Scientific keywords
| A. Sample category | inorganic material |
|---|---|
| B. Sample category (detail) | semiconductor |
| C. Technique | absorption and its secondary process |
| D. Technique (detail) | |
| E. Particular condition | room temperature, electric field |
| F. Photon energy | X-ray (4-40 keV) |
| G. Target information | function, electronic state, photochemical reaction |
Industrial keywords
| level 1---Application area | environment, Chemical product |
|---|---|
| level 2---Target | catalysis |
| level 3---Target (detail) | |
| level 4---Obtainable information | chemical state |
| level 5---Technique | XAFS |
Classification
A40.40 surface・interface chemistry, A60.20 environment, A80.12 semiconductor, A80.34 catalysis, A80.36 electrochemistry, M40.10 XAFS
Body text
The behavior of photocatalysis materials under x-ray irradiation was studied. Figure shows the photo current and photo potential behavior of TiO2 under x-ray irradiation. It was observed that the photoelectrochemical reaction also occurs under x-ray irradiation.
Figure 2 X-ray energy dependencies of photocurrent (triangles),
rest potential (circles), fluorescence intensity (squares)
Source of the figure
Private communication/others
Description
筆者(原研、田村さん）のデーター
Technique
Photocurrent and photopotential were measured under x-ray irradiation with scanning x-ray energy around Ti-K edge.
Source of the figure
No figure
Required time for experimental setup
3 hour(s)
Instruments
| Instrument | Purpose | Performance |
|---|---|---|
| potentiostat | control the electrode potentials |
References
| Document name |
|---|
| 原研 関西研究所年報2003, 90 |
Related experimental techniques
Questionnaire
The measurement was possible only in SPring-8. Impossible or very difficult in other facilities.
Ease of measurement
Middle
Ease of analysis
Middle
How many shifts were needed for taking whole data in the figure?
Two-three shifts