Preparation method of nano-metal sulfide
A nano-metal and sulfide technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., to achieve good application potential, safe environment, and simple preparation methods
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Embodiment 1
[0048] (1) Inoculate the S 2- In the generated culture solution, the solution A1 is obtained, and the volume of the sulfate-reducing bacteria solution added is S 2- Generate 10% of the culture medium volume;
[0049] (2) preparation is dissolved with the carbon tetrachloride solution of 0.05mol / L tin tetrachloride as solution B1;
[0050] (3) 150ml solution B1 is first moved into a conical flask with a volume of 500ml, then 350ml solution A1 is moved into the conical flask, and when the solution A1 is taken out, slowly add to the wall so as not to disturb the lower floor solution B1; After sealing the Erlenmeyer flask, incubate at a constant temperature at 35°C; after 21 days, the reaction is complete, and a yellow precipitate is formed at the bottom of the Erlenmeyer flask;
[0051] (4) At 2000r·min -1 The precipitate obtained in step (3) was collected by centrifugation for 20 min under the conditions, and the precipitate collected by centrifugation was first washed 5 time...
Embodiment 2
[0060] (1) Inoculate the S 2- In the generated culture solution, the solution A2 is obtained, and the volume of the sulfate-reducing bacteria solution added is S 2- Generate 5% of the culture medium volume.
[0061] (2) preparation is dissolved with the carbon disulfide solution of 0.1mol / L tin tetrachloride as solution B2;
[0062] (3) 88ml solution B2 is first moved into a conical flask with a volume of 500ml, then 350ml solution A2 is moved into the conical flask, and when the solution A2 is pipetted, slowly add to the wall so as not to disturb the lower floor solution B2; After sealing the Erlenmeyer flask, incubate at a constant temperature at 25°C; after 25 days, the coupling reaction is completed, and a yellow precipitate is formed at the bottom of the Erlenmeyer flask;
[0063] (4) At 2000r·min -1 The precipitate obtained in step (3) was collected by centrifugation for 20 min under the conditions, and the precipitate collected by centrifugation was first washed with...
Embodiment 3
[0066] (1) Inoculate the sulfate-reducing bacteria solution with a turbidity of 150 NTU into 2- In the generated culture solution, the solution A3 is obtained, and the volume of the sulfate-reducing bacteria solution added is S 2- Generate 20% of the culture medium volume.
[0067] (2) preparation is dissolved with the benzene solution of 0.0125mol / L tin tetrachloride to be solution B3;
[0068] (3) 350ml solution A3 is first moved into a conical flask with a volume of 2000ml, then 1400ml solution B3 is moved into the conical flask, and when the solution B3 is pipetted, slowly add to the wall so as not to disturb the lower floor solution A3; After the Erlenmeyer flask was sealed, it was cultured at a constant temperature at 45°C; after 39 days, the coupling reaction was completed, and a yellow precipitate was formed at the bottom of the Erlenmeyer flask;
[0069] (4) At 2000r·min -1 The precipitate obtained in step (3) was collected by centrifugation for 20 min under certai...
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