Research Article
Layer-by-Layer Assembly and Photocatalytic Activity of Titania Nanosheets on Coal Fly Ash Microspheres
Figure 4
XRD patterns of (a–c) CFA and Ti0.91O2/CFA samples and (d) protonic titanate: (1) CFA; (2) Ti0.91O2/CFA-2; (3) Ti0.91O2/CFA-4; (4) Ti0.91O2/CFA-6; (5) Ti0.91O2/CFA-8.