TY - JOUR ID - TI - Resistance and biosorption mechanism of silver ions by Bacillus cereus biomass AU - Li Li AU - Qing Hu AU - Jinghai Zeng AU - Hongyan Qi and Guoqiang Zhuang VL - 23 IS - 1 PB - SP - 108 EP - 111 PY - JF - Journal of Environmental Sciences JA - J. Environ. Sci. UR - http://www.jesc.ac.cn/jesc_en/ch/reader/view_abstract.aspx?file_no=2011230115&flag=1 KW - Bacillus cereus; biosensor; biosorption; crystal; isotherms; kinetics; silver AB - Biosorption of silver ions onto Bacillus cereus biomass was investigated. Overall kinetic experiments were performed for the determination of the necessary contact time for the attainment of equilibrium. It was found that the overall biosorption process was best described by pseudo second-order kinetic model. The crystals detected by scanning electron microscope and X-ray photoelectron spectroscopy suggested the precipitation was a possible mechanism of biosorption. The molecular genetics of silver resistance of B. cereus biomass was also detected and illustrated by a whole cell sensor tool. ER -