I hve prepared a Doped Zno with diff conc. For photodegradation of a phenolic pollutant I got absorbance value higher. Is it mean that it can't be used for it or I should try something else
It might be the catalyst not separated from reaction medium and during the measurement, the reactions might continue to form several intermediates which can cause interference at the maximum wavelength since the molecules with similiar structures can give the maximum absorbance at close wavelengths. I suggest to use syringe filter to make sure that all solid catalyst particles are removed and then repeat the measurements.