摘要
采用红外光谱技术探讨了抗重金属细菌NTG-01对针铁矿吸附Cu2+、Cd2+的影响。结果表明:①细菌细胞表面的游离羟基可以吸附Cu2+;②加入细菌以后促进了Cu2+与针铁矿表面游离羟基(-OH)反应,使Cd2+与其表面的水合羟基(-OH2)的反应加强。
A highly heavy metal-resistant bacteria strain(Enterobacter aerogenes)NTG-01 was used in the experiment. The main results were as follows: 1. Cu2+ mainly interacted with the free Hydroxyl group (-OH) on the bacteria cell surface . 2. Bacteria increased the interaction between Cu2+ and the free Hydroxyl group (-OH)on goethite surface and the reaction between Cd2+ and the hydrate hydroxyl group (-OH2) on goethite surface was strengthened in the presence of bacteria.
出处
《武汉生物工程学院学报》
2006年第3期153-157,共5页
Journal of Wuhan Bioengineering Institute
基金
国家自然科学基金(20077010)资助
关键词
细菌
针铁矿
铜
镉
吸附
红外光谱
bacteria
goethite
copper
cadmium
absorption
infrared spectrum
