Dear colleagues,
I had synthesized silver-phosphate based photocatalyst material with the addition of PEG (various PEG concentration and chain length). When I analyzed using Diffuse Reflectance Spectroscopy (DRS), I found that there is an absorbance intensity chaning on them. It was dramatically lowest than control (without the addition of PEG). The spectra only showed at around 300-400 nm than control (200 up to 600 nm with higher absorbance intensity) or previous literature. Is there any literature or book discussing about that?
Hi,
I think the obtained defect in prepared silver-phosphate , so must study the XRD to ensure is prepared and compared the position of 2 thata ..... I think the size of this material is changed may be agglomerated ......
Regards,
Dear Roberto Köferstein thank you for your response,
Here is my sample that analyzed using DR UV analysis. Control and sample with the addition of PEG are (a) and (b), respectively. Based on the picture, the addition of PEG (b) has dramatically decreased the DR spectra up to the minus level (lower than 0) at 500-800 nm. As far as I know, it does not happen before.
It seems that the sample has a very low background profile than that of control. It might be caused by the incorrect white background reference. Have you measured it several times? You can measure both samples at the same time
- Badges
- Science method
- Similar topics
- Methodology
- Absorption Spectroscopy
- UV-Visible Spectroscopy