Laboratory for measurement of photoluminescence emission (PL) or excitation spectra of various nanomaterials and kinetics, complemented by DRS and UV/VIS spectrophotometry of various photocatalysts. It is used to determine the photoluminescence and optoelectronic properties of photocatalysts, processes in terms of photoinduced electron-hole interaction, etc. The methods can be further complemented by the so-called scavenger technique (photodegradation using special reagents to determine whether hole (h+), ∙OH- and ∙O2- radicals are involved in the optoelectronic properties, including determination of photodegradation of photocatalysts on model organic dyes) in the UV or VIS region. The maximum sample weight for measuring PL and excitation or DRS spectra is about 5 g, with a minimum of 1 g. Powder samples (fine grain-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.