Biosynthesis method of magnetic Pd nanocomposite material
A nanocomposite material and biosynthesis technology, applied in the field of biosynthesis nanomaterials, can solve the problems of short reaction time and harsh reaction conditions, and achieve the effect of short reaction time, simple operation and mild conditions
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Embodiment 1
[0025] Magnetic Fe 3 o 4 / Pd nanocomposite preparation:
[0026] (1) Cultivation of Shewanella oneidensis MR-1: This method uses S.oneidensis MR-1 as the microbial strain for synthesizing magnetic Pd nanocomposites; (Hydrated) metal oxides, fast growth, can enter the stable growth period within 12 hours; the strain uses Luria-Bertani medium, the formula of the medium is: NaCl10g / L, peptone 10g / L, yeast extract powder 5g / L, and the final pH was adjusted to 7.0 with NaOH. Before using the medium, use an autoclave to sterilize it at 121°C for 20 minutes; S. oneidensis MR-1 was inoculated into Luria-Bertani medium in a sterile operating table at an inoculation ratio of 1:100; after inoculation, the The culture medium was cultured in an incubator at 30° C. and 150 rpm for 12 hours to obtain a S. oneidensis MR-1 bacterial liquid for use.
[0027] (2) Preparation of β-FeOOH: β-FeOOH is used to synthesize Fe from S.oneidensis MR-13 o 4 The precursor of 10mol / L NaOH solution was ...
Embodiment 2
[0038] Magnetic Fe 3 o 4 / Pd / Au nanocomposite preparation:
[0039] (1) Cultivation of Shewanella oneidensis MR-1: This method uses S.oneidensis MR-1 as the microbial strain for synthesizing magnetic Pd nanocomposites; (Hydrated) metal oxides, fast growth, can enter the stable growth period within 12 hours; the strain uses Luria-Bertani medium, the formula of the medium is: NaCl10g / L, peptone 10g / L, yeast extract powder 5g / L, and the final pH was adjusted to 7.0 with NaOH. Before using the medium, use an autoclave to sterilize it at 121°C for 20 minutes; S. oneidensis MR-1 was inoculated into Luria-Bertani medium in a sterile operating table at an inoculation ratio of 1:100; after inoculation, the The culture medium was cultured in an incubator at 30° C. and 150 rpm for 12 hours to obtain a S. oneidensis MR-1 bacterial liquid for use.
[0040] (2) Preparation of β-FeOOH: β-FeOOH is used to synthesize Fe from S.oneidensis MR-1 3 o 4 The precursor of 10mol / L NaOH solution...
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