SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2023, Vol. 62 ›› Issue (10): 168-181.DOI: 10.1016/j.cjche.2023.03.014

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Inhibition mechanism of air nanobubbles on brass corrosion in circulating cooling water systems

Yuling Zhang, Shaolei Lu, Delie Li, Haiyang Duan, Congwen Duan, Jinghong Zhang, Songtao Liu   

  1. Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
  • Received:2022-12-05 Revised:2023-02-11 Online:2023-12-23 Published:2023-10-28
  • Contact: Yuling Zhang,E-mail:zhangyuling_hit@163.com
  • Supported by:
    This study was supported by National Natural Science Foundation of China (52170074). The authors acknowledge Zeng Leyong’s Lab of Hebei University for their help.

Inhibition mechanism of air nanobubbles on brass corrosion in circulating cooling water systems

Yuling Zhang, Shaolei Lu, Delie Li, Haiyang Duan, Congwen Duan, Jinghong Zhang, Songtao Liu   

  1. Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
  • 通讯作者: Yuling Zhang,E-mail:zhangyuling_hit@163.com
  • 基金资助:
    This study was supported by National Natural Science Foundation of China (52170074). The authors acknowledge Zeng Leyong’s Lab of Hebei University for their help.

Abstract: Air nanobubbles (A-NBs) were used to inhibit the brass corrosion in circulating cooling water for the first time in the study. The results of mass loss method and electrochemical method showed that A-NBs had the obvious corrosion inhibition effect. The inhibition rate reached 52% at 35 ℃. The impedance and surface characterization results of corrosion samples indicated that the corrosion inhibition mechanisms of A-NBs mainly included adsorption of corrosion ions, promoting the formation of the passivation film on metal surface and the formation of the bubble layer and scale film on metal surface. A-NBs are potential excellent corrosion inhibitors.

Key words: Brass, Air nanobubble, Passivation film, Bubble layer, Corrosion inhibition

摘要: Air nanobubbles (A-NBs) were used to inhibit the brass corrosion in circulating cooling water for the first time in the study. The results of mass loss method and electrochemical method showed that A-NBs had the obvious corrosion inhibition effect. The inhibition rate reached 52% at 35 ℃. The impedance and surface characterization results of corrosion samples indicated that the corrosion inhibition mechanisms of A-NBs mainly included adsorption of corrosion ions, promoting the formation of the passivation film on metal surface and the formation of the bubble layer and scale film on metal surface. A-NBs are potential excellent corrosion inhibitors.

关键词: Brass, Air nanobubble, Passivation film, Bubble layer, Corrosion inhibition