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

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

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%.

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Co3O4/GO催化剂对含聚丙烯酰胺(PAM)废水的高效非均相降解
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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来源期刊
Water Cycle
Water Cycle Engineering-Engineering (miscellaneous)
CiteScore
9.20
自引率
0.00%
发文量
20
审稿时长
45 days
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