Catalytic oxidation of 1,2-dichlorobenzene over Ca-doped FeOx hollow microspheres

- Novel Ca-doped FeOx hollow microsphere catalysts were synthesized.
- Hollow microsphere catalysts were effective for catalytic oxidation of Cl-VOCs.
- Activity, water-resistance, stability of hollow spheres are superior to solid ones.
- The hollow sphere catalyst has low apparent activation energy (21.6 kJ/mol).
- Osur species, good reducibility and synergic effect contribute to high activity.