Fabrication, characterization of β-MnO2 microrod catalysts and their performance in rapid degradation of dyes of high concentration

- β-MnO2 microrod catalysts were fabricated at large scale used different manganese precursors.
- Morphologies and crystallinity of MnO2 were controlled by hydrothermal time and temperature.
- High crystallinity and good morphology promote the catalytic performance in degradation of high concentration dyes.
- Fenton-like mechanism is involved in.
- β-MnO2 microrods show high stability in recycling reaction of dye degradation.