Fig. 2(b) isanSEMimageofthe0.1wt%G–TiO2 powder
prepared byAD.Thearrowshowsthegraphene flakes, and
aggregatedTiO2 particles severalmicrometersinsizeare
attached tothegraphene flake. ThenanosizedTiO2 particles
were agglomeratedusingthePVApolymer.TheTEMimage
of the0.1wt%G–TiO2 powderispresentedin Fig. 2(c), which
clearly revealsthattheTiO2 particles areevenlydistributed
around thegraphene flakes. TheinsetoftheTEMimageshows
the originalgraphene flakes usedinthisstudy.