Aqueous Mediated Preparation of Nanocrystalline Dyes by Ultrasonic Irradiation

Ultrasound irradiation was used for preparation of nanocrystals of three dyes, disperse Red 60(DR), quinizarine (QZ) and alizarin(AZ) by reprecipitation method in aqueous media. Using this method, nanocrystals with the different crystal structure from that of bulk crystals were produced. Optical properties were studied by Uv-Vis spectroscopy. Results revealed some common points, but also some interesting differences, in the optical behaviors of the samples.

کلیدواژه ها:

Organic nanocrystals ، Reprecipitation method ، ultrasound irradiation