Effects of Cd on reductive transformation of lepidocrocite by Shewanella oneidensis MR-1

• 作者: Chaolei Yuan Fangbai Li Rui Han Tongxu Liu Weimin Sun Weilin Huang
• 学科: 地球科学
• 关键词: Lepidocrocite Cadmium Microbial reduction
• 年，卷（期）: 2022,（3）
• 页码范围: 479-481
• 页数: 2页
• 语种: 英文
• DOI: 10.1007/s11631-017-0200-4

摘要

We investigated the reduction of lepidocrocite (γ-FeOOH) by Shewanella oneidensis MR-1 in the presence and absence of Cd. The results showed that Cd2+ retarded microbial reduction of γ-FeOOH and avoided formation of magnetite. The inhibitory effect on γ-FeOOH transformation may not result from Cd2+ toxicity to the bacterium; it rather was probably due to competitive adsorption between Cd2+ and Fe2+ on γ-FeOOH as its surface reduction catalyzed by adsorbed Fe2+ was eliminated by adsorption of Cd2+.