Zaslat záznam e-mailem: Synthesis of NiO/CoO@SiO<sub>2</sub>-10%g-C<sub>3</sub>N<sub>4</sub> and NiO/CoO@SiO<sub>2</sub>-20%g-C<sub>3</sub>N<sub>4</sub> for Effective Sweepout of Ciprofloxacin from Water