02020nas a2200217   4500008004100000022001400041245016600055210006900221260010600290300001400396490000700410520109600417653002501513653002401538653001901562653002701581653002001608100002201628700002401650856012801674       2010                        eng d  a0360-319900aCritical role of particle size and interfacial properties in the visible light induced splitting of water over the nanocrystallites of supported cadmium sulphide0 aCritical role of particle size and interfacial properties in the  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcAPR  a3287-32960 v353 a<p>CdS crystallites of varying size (1 to 5.0 nm) were successfully deposited on the surfaces of polyester and activated charcoal. The size and the texture of these crystallites depended on CdS loading and also on the substrate morphology. These highly dispersed photocatalysts displayed a pyramidal trend in activity for visible light induced splitting of water molecules, similar to that reported for the heterogeneous catalytic reactions over supported noble metals. Thus, the CdS particles of similar to 2.5 nm size gave rise to maximum rate of H(2) evolution as compared to the particles of either smaller or of larger size. The particles of &lt;1.5 nm diameter were of poor crystallinity and displayed a significant Q-size effect on the absorption edge. Our study provides direct evidence for the structure sensitivity of photocatalytic dissociation of water over supported semiconductor nanocrystallites, where the particle size and the interfacial microstructural defects played a vital role. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.</p>10aCdS nanocrystallites10aInterfacial defects10aPhotocatalysis10aStructural sensitivity10awater splitting1 aDeshpande, Aparna1 aGupta, Narendra, M.  uhttps://library.ncl.res.in/content/critical-role-particle-size-and-interfacial-properties-visible-light-induced-splitting-0