Synthesis of Hollow CdS-TiO<sub>2</sub> Microspheres with Enhanced Visible-Light Photocatalytic Activity

<table>PL spectra of CdS-TiO<sub>2</sub> and TiO<sub>2</sub> samples with the excitation wavelength of 360 nm.</table>

International Journal of Photoenergy

Figure 4: Synthesis of Hollow CdS-TiO<sub>2</sub> Microspheres with Enhanced Visible-Light Photocatalytic Activity 