High efficien cy photor eduction o f Nitrobenzene to Aniline over CdS-TiO۲ /based photocatalys ts modifi ed with A mino acid under visible light

Nanosize d CdS cou pled TiO۲ nanocrystals were pre pared by a microemul sion-mediat ed solvothe rmal method at relati vely low temperatures. Nanocomposite modificated with different types of A mino acid (A A) such as Tyrosine, P henyl alanine, Glysine and Glutamate .The prepared samp les were characterized by DRS ,SEM-EDX ,XRD ,BE T and FTIR analysis methods. T he results showed that T yrosine induces more enhance in photoreduction rate of Nitrobenzen e (NB) to aniline, un der visible light irradiation. Hig hly disperse dnanocrystals ,a ho mogenous a nd mesopo rous structure of nanocomposite can be t he advantages of micro emulsion me thod.

کلیدواژه ها:

CdS-TiO۲ ، Amino acid ، Microemulsion ، Nitrobenzene