Co3O4/GO催化剂对含聚丙烯酰胺(PAM)废水的高效非均相降解

Q1 Environmental Science

Water Cycle Pub Date : 2021-01-01 DOI:10.1016/j.watcyc.2020.12.001

Can Kong , Fang Liu , Hui Sun , Zhou Zhang , Benjie Zhu , Wei Li

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引用次数: 14

摘要

针对含聚丙烯酰胺(PAM)的产废，选择Co3O4-GO/PMS体系对PAM进行非均相降解。研究了Co3O4/GO的特性。降解实验表明，Co3O4/GO的制备成功，且具有良好的降解效率。在90 min内去除率可达99.7%以上。此外，PAM在酸性和中性溶液中的降解效果较好。通过淬灭实验可知，SO4-•和•OH是Co3O4-GO/PMS体系中的主要活性自由基。PMS被离子激活，生成SO4-•去除PAM。经过5次循环再利用，PAM的降解效率仍然超过95.7%。

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Co3O4/GO catalyst as efficient heterogeneous catalyst for degradation of wastewater containing polyacrylamide(PAM)

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%.

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来源期刊

Water Cycle Engineering-Engineering (miscellaneous)

CiteScore

9.20

自引率

0.00%

发文量

审稿时长

45 days