Fig. 9.14 (a) TEM; (b) STEM; (c, d) HRTEM images of Au/TiO 2 –3DHNSs (Reproduced from
ref. [19] by permission of John Wiley & Sons Ltd)
Fig. 9.15 (a) UV–vis diffuse reflectance spectra for Au/TiO 2 –3DHNSs and the TiO 2 –3DHNSs
reference sample. The shaded region in (A) shows the presence of photonic stop band. (b) UV–vis
absorption spectra of Au/TiO 2 –3DHNSs before and after being crushed. Inset in (B) shows a digital
photo of Au/TiO 2 –3DHNSs (Reproduced from ref. [19] by permission of John Wiley & Sons Ltd)
238
9 Hollow or Yolk–Shell-Type Photocatalyst
ref. [19] by permission of John Wiley & Sons Ltd)
Fig. 9.15 (a) UV–vis diffuse reflectance spectra for Au/TiO 2 –3DHNSs and the TiO 2 –3DHNSs
reference sample. The shaded region in (A) shows the presence of photonic stop band. (b) UV–vis
absorption spectra of Au/TiO 2 –3DHNSs before and after being crushed. Inset in (B) shows a digital
photo of Au/TiO 2 –3DHNSs (Reproduced from ref. [19] by permission of John Wiley & Sons Ltd)
238
9 Hollow or Yolk–Shell-Type Photocatalyst