کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4409755 1307506 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mercury capture into biogenic amorphous selenium nanospheres produced by mercury resistant Shewanella putrefaciens 200
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Mercury capture into biogenic amorphous selenium nanospheres produced by mercury resistant Shewanella putrefaciens 200
چکیده انگلیسی

Shewanella putrefaciens 200, resistant to high concentration of Hg(II), was selected for co-removal of mercury and selenium from aqueous medium. Biogenic Hg(0) reduced from Hg(II) by S. putrefaciens 200 was captured into extracellular amorphous selenium nanospheres, resulting in the formation of stable HgSe nanoparticles. This bacterial reduction could be a new strategy for mercury removal from aquatic environments without secondary pollution of mercury methylation or Hg(0) volatilization.


► Shewanella putrefaciens 200 can produce reactive amorphous Se nanospheres.
► S. putrefaciens 200 reduced Hg(II) rapidly.
► Selenium nanoparticles efficiently sequester elemental Hg.
► Mercury and selenium was co-removed as stable HgSe nanoparticles.
► No secondary mercury pollution such as methylation or volatilization was formed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 87, Issue 6, May 2012, Pages 621–624
نویسندگان
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