Article pubs.acs.org/est
Mercury Reduction and Cell-Surface Adsorption by Geobacter sulf urreducens PCA Haiyan Hu,†,‡ Hui Lin,‡ Wang Zheng,‡ Balaji Rao,‡ Xinbin Feng,§ Liyuan Liang,‡ Dwayne A. Elias,⊥ and Baohua Gu*,‡ †
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong, 510640, China ‡ Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States § State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550002, China ⊥ Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States S Supporting Information *
ABSTRACT: Both reduction and surface adsorption of mercuric mercury [Hg(II)] are found to occur simultaneously on G. sulf urreducens PCA cells under dark, anaerobic conditions. Reduction of Hg(II) to elemental Hg(0) initially follows a pseudo-first order kinetics with a half-life of
