铈掺杂TiO<sub>2</sub>薄膜抗海水中硫酸盐还原菌的腐蚀性能研究

中国腐蚀与防护学报

2010, Vol. 30

Issue (6): 481-486

研究报告

本期目录 | 过刊浏览

铈掺杂TiO₂薄膜抗海水中硫酸盐还原菌的腐蚀性能研究

王洪芬¹,王志奇²,洪海霞¹,陈守刚¹,尹衍升¹

1. 中国海洋大学材料科学与工程研究院青岛 266100
2. 中国科学院青岛生物能源与过程研究所青岛 266101

CORROSION RESISTANCE BEHAVIOR OF CERIUM-DOPED TiO₂ FILM IN THE PRESENCE OF MARINE BACTERIUM SULFATE-REDUCING BACTERIA

WANG Hongfen¹, WANG Zhiqi², HONG Haixia¹, CHEN Shougang¹,YIN Yansheng¹

1. Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100
2. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101

全文: PDF(2312 KB)

摘要: 采用溶胶-凝胶法在304不锈钢表面制备了铈掺杂TiO₂薄膜，并采用半连续培养方式在海水中培养硫酸盐还原菌（SRB）。通过形貌观察及电化学方法研究浸泡于菌液中的空白304不锈钢及铈掺杂TiO₂/304ss电极的腐蚀行为。结果指出，在304不锈钢表面涂覆铈掺杂TiO₂薄膜后能显著抑制硫酸盐还原菌的附着行为；涂膜电极在硫酸盐还原菌菌液中的自腐蚀电流密度低于同期浸泡的空白304不锈钢电极，而电化学阻抗值则高于同期浸泡的空白304不锈钢电极，表明在304不锈钢表面涂覆铈掺杂TiO₂薄膜能起到抗海水中硫酸盐还原菌附着腐蚀的作用。

关键词 ： TiO₂薄膜, 硫酸盐还原菌, 极化曲线, 电化学阻抗谱, 304不锈钢

Abstract：Cerium-doped TiO₂ film was prepared on 304 stainless steel by a sol-gel process. Sulfate-reducing bacteria(SRB) was incubated by semi-continuous culture method. The effect of SRB on corrosion behavior of cerium-doped TiO₂/304ss and bare 304ss immersed in SRB medium were studied by morphology analysis and electrochemical methods. The results showed that cerium-doped TiO₂ film on 304ss could inhibit attachment of SRB. The corrosion current density of cerium-doped TiO₂/304ss was lower, while electrochemical impedance was higher than that of bare 304ss. Therefore, a conclusion could be drawn that cerium-doped TiO₂ film coating on 304ss could inhibit attachment of SRB and prevent corrosion caused by SRB in seawater.

Key words： TiO₂ thin film sulfate-reducing bacteria polarization electrochemical impedance spectroscopy 304 stainless steel

收稿日期: 2009-10-12

ZTFLH:

TG172

基金资助:

国家自然科学基金项目（50672090，50702053）和山东省自然科学基金项目（Y2008B46）资助

通讯作者: 尹衍升 E-mail: yys2003@ouc.edu.cn

Corresponding author: WANG Hongfen E-mail: yys2003@ouc.edu.cn

作者简介: 王洪芬，1975年生，女，博士，讲师，研究方向为微生物腐蚀

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引用本文:

王洪芬,王志奇,洪海霞,陈守刚,尹衍升. 铈掺杂TiO₂薄膜抗海水中硫酸盐还原菌的腐蚀性能研究[J]. 中国腐蚀与防护学报, 2010, 30(6): 481-486.
YU Hong-Fen, YU Zhi-Ai. CORROSION RESISTANCE BEHAVIOR OF CERIUM-DOPED TiO₂ FILM IN THE PRESENCE OF MARINE BACTERIUM SULFATE-REDUCING BACTERIA. J Chin Soc Corr Pro, 2010, 30(6): 481-486.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2010/V30/I6/481

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