Tribocatalytic activation of PMS by TiO2 nanoparticles for degradation of phenol (IMAGE)

Tsinghua University Press

Tribocatalytic activation of PMS by TiO2 nanoparticles for degradation of phenol

Caption

In glass beakers with PTFE disks coated on bottoms, TiO2 nanoparticles were subjected to magnetic stirring using PTFE magnetic rotary disks in a solution of 20 mg/L  phenol and 200 mg/L PMS. Phenol was degraded rather thoroughly in a short period of time with improved total organic carbon removal. It is proposed that electrons from mechanical energy-excited electron-hole pairs in TiO2 nanoparticles react with PMS to generate SO4•-  and other radicals.

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Journal of Advanced Ceramics, Tsinghua University Press

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