Laboratory for measuring photoluminescence emission (PL) or excitation spectra of various nanomaterials, kinetics, supplemented by DRS and UV/Vis/NIR spectrophotometry used for measuring the properties of various photocatalysts. It is used to determine the photoluminescence and optoelectronic properties of photocatalysts, processes from the perspective of the interaction of photoinduced electrons and holes, etc. The methods can be further supplemented by the so-called scavengers measurement technique (photodegradation using special reagents to determine whether holes (h+), ∙OH and ∙O2- radicals participate in the optoelectronic properties, including determining the photodegradation of photocatalysts on model organic dyes) in the UV/VIS region. The maximum sample weight for measuring PL and excitation or DRS spectra is approximately 5 g, the minimum is 1 g. Powder samples (fine grain size - powder) or liquid samples can be measured.
Equipment
- Photoluminescence spectrometer FLSP 920 Series: Edinburgh Instruments, Ltd.
- UV-VIS including DRS technology IRS-2600Plus: Shimadzu UV-2600
- UV-VIS spectrometer: Unicam
Contact person: Ing. Pavlovský Jiří, Ph.D.