Co3O4/GO catalyst as efficient heterogeneous catalyst for degradation of wastewater containing polyacrylamide(PAM)
Can Kong, Fang Liu, Hui Sun, Zhou Zhang, Benjie Zhu, Wei Li
Abstract
Aiming at the produced waster containing polyacrylamide(PAM), the heterogeneous Co3O4-GO/PMS system was selected to degrade PAM in this paper. The characteristic of Co3O4/GO are studied. The degradation experiment shows that Co3O4/GO was successfully prepared and exhibited satisfactory degradation efficiency. The removal efficiency can exceed 99.7% within 90 min. Furthermore，the degradation effect of PAM was better in acidic and neutral solutions. Based on the quenching experiments, SO4-• and •OH are the main active radicals in Co3O4-GO/PMS system. PMS is activated by mental ion and generated SO4-• to remove PAM. After 5 runs of reuse, PAM degradation efficiency still exceeded 95.7%.