3,4,9,10-Perylenetetracarboxylic-diimide

3,4,9,10-Perylenetetracarboxylic-diimide (10 μM; 24 h) significantly enhances the degradation efficiency of TiO photocatalyst towards methylene blue, with the degradation rate exceeding 80%^[1].

Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
1. Ultraviolet-Visible Absorption Spectroscopy (UV-vis) Detection^[1]
1.1 Sample Preparation: Dissolve PTCDI in DMSO.
1.2 Instrument: Ultraviolet-Visible Spectrophotometer.
1.3 Detection Wavelength Range: 400-650 nm.
1.4 Operation Steps: Use pure solvent as blank control, scan the absorption spectrum of the sample, and record the position and absorption intensity of the maximum absorption peak.
2. Photoluminescence (PL) Spectroscopy Detection^[2]
2.1 Sample Preparation: Same as UV-vis detection.
2.2 Instrument: Fluorescence Spectrometer.
2.3 Excitation Wavelength: 254 nm.
2.4 Detection Wavelength Range: 600-800 nm.
2.5 Operation Steps: Set the excitation wavelength to 254 nm and the slit width to 5 nm. Scan the emission spectrum, and record the intensities of the main peak (695 nm) and shoulder peak (717 nm).

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.