A new method of preparing CdS nanoparticles inside MCM-41 is described. Thi
s method makes uses of the unique interfacial properties of selectively fun
ctionalized ordered mesoporous materials to deliver cadmium ions inside the
mesopores of MCM-41 via an ion-exchange reaction, thereby minimizing uncon
trolled precipitation reactions of cadmium ions outside the mesopores. The
general methodology can also be used to prepare other sulfide, telluride, a
nd oxide nanoparticles.