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Spectroscopic characterization on the biosorption and bioreduction of Ag(I) by Lactobacillus sp. A09

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乳酸杆菌A09吸附还原Ag_的谱学表征.pdf (481.8Kb)
Date
2000
Author
Fu, JK
傅锦坤
Liu, YY
刘月英
Gu, PY
古萍英
Tang, DL
汤丁亮
Lin, ZY
林种玉
Yao, BX
姚炳新
Weng, SZ
翁绳周
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  • 化学化工-已发表论文 [14235]
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Abstract
Some characteristics of Ag+ biosorption and bioreduction by Lactobacillus sp. A09 biomass were reported. The optimum pH value of Ag+ biosorption by strain A09 was 4.5. Temperature(6 similar to 50 degrees C) did not affect the biosorption. The biosorptive efficiency (91%) and biosorptive capacity(Ag(+)125 mg . g(-1) dry weight biomass) were achieved under the conditions of Ag(+)100 mg . L-1, biomass 800 mg . L-1, pH 4.5 and 30 degrees C for 24 h contact, TEM analysis indicated that A09 biomass could reduce Ag+ to Ag-o as Ag particles on the surface of cells. IR spectroscopy showed that -CO2- and -HN -C = O on the surface of cells may involve in the precession for adsorbing Ag+.
Citation
ACTA PHYSICO-CHIMICA SINICA,2000,16(9):779-782
URI
https://dspace.xmu.edu.cn/handle/2288/12795

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