Efficient generation of singlet oxygen (O) by CoP/NiP@NF for degradation of sulfamerazine through a heterogeneous electro-Fenton process at circumneutral pH.

In electro-Fenton (EF), the development of a catalytic material with wide pH application range and high interference resistance is more suitable for practical wastewater treatment. In this study, the nanoneedle-shaped CoP/NiP heterostructure loaded onto a nickel foam substrate (CoP/NiP@NF) was successfully fabricated, which was used as a cathode material for heterogeneous electro-Fenton (Hetero-EF) to degrade sulfamerazine (SMR) at circumneutral pH. The SMR degradation efficiency within 90 min went to 100% and 87% at initial pH of 6.