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采用溶胶-凝胶法在304不锈钢表面制备了铈掺杂TiO_2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TiO_2/304ss电极的腐蚀行为。结果指出,在304不锈钢表面涂覆铈掺杂TiO_2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TiO_2薄膜能起到抗海水中硫酸盐还原菌附着腐蚀的作用。
Cerium doped TiO 2 films were prepared on the surface of 304 stainless steel by sol-gel method. Sulfate-reducing bacteria (SRB) were cultured in seawater by semi-continuous culture. The corrosion behavior of blank 304 stainless steel and cerium-doped TiO_2 / 304ss electrode immersed in the bacterial liquid was investigated by morphology observation and electrochemical method. The results indicate that the coating of 304 stainless steel with cerium-doped TiO 2 film can significantly inhibit the sulfate-reducing bacteria adhesion behavior; coated electrode in the sulfate-reducing bacteria in the self-corrosion current density is lower than the same period immersion blank 304 stainless steel Electrode, while the electrochemical impedance value is higher than that of blank 304 stainless steel electrode immersed in the same period, indicating that the surface of 304 stainless steel coated with cerium doped TiO 2 film can play a role in anti-seawater sulfate reducing bacteria adhesion corrosion.