文档介绍：第28卷第3期 天津城建大学学报
2022年6, 35 P and sodium
lactate as carbon source). TPPS controlled the particle size and the electrostatic repulsion between nanoparticles by changing
the protein composition in the organic coating on the surface of selenium nanoparticles, thus rendering the lower zeta
potential on the surface of selenium nanoparticles, the smaller average particle size, as well as the more homogeneous
particle dispersion. This study provided theoretical basis for the porphyrin engineering application in the biological pollutant
transformation and also the technical support to regulate the synthesis of nanoparticles.
Key words: porphyrin; Shewanella oneidensis * MR-1; selenite; selenium nanoparticles
随着科技、经济的发展和进步，硒已广泛应用于 大,毒性更强,、
石油炼制、电子及光电产业、化石燃料燃烧等各种工 化学的去除方法,微生物修复法具有操作方便、生长
业活动,如今人为将其排放到环境中已造成环境污染 速度快、环境适应性强、自分泌催化剂、环保、经济等
问题叫大量含硒工业废水、废渣及废气排放到当地环 优点冈,具有较大的发展前景，是目前处理含亚硒酸盐
境中造成硒污染冋，特别是地下水受到硒污染的威胁, ，利用微生物可以将亚硒
若长期处于含高浓度硒的环境中, 酸盐还原为硒纳米颗粒(SeNPs)排出胞外并进行硒资
的含氧阴离子(Se(Vl).Se(lV))和硒化物