Enhanced anatase-to-rutile phase transformation without exaggerated particle growth in nanostructured titania–tin oxide composites

Through the use of titania–tin oxide nanocomposites, an enhanced anatase-to-rutile phase transformation is achieved, while avoiding appreciable particle growth. Upon the addition of SnO2, the phase transformation temperature fell, reaching a minimum value at 18 vol.% of tin oxide, before increasing. Neither anatase nor rutile phase particles showed exaggerated growth. SnO2 particles demonstrated both transformation-enhancing and growth-retarding roles.