Figure 3

ZnO/WG nanospheres prepared by different concentrations of WG [WG concentrations while preparation: (a) 2 mg/mL; (b) 4 mg/mL; (c) 6 mg/mL; (d) 8 mg/mL; (e) 10 mg/mL].

ZnO/WG nanospheres prepared by different concentrations of WG [WG concentrations while preparation: (a) 2 mg/mL; (b) 4 mg/mL; (c) 6 mg/mL; (d) 8 mg/mL; (e) 10 mg/mL].