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A preparation g-c 3 no 4 Method of composite carrier with carbon fiber

A composite support, g-c3n4 technology, applied in chemical instruments and methods, catalyst supports, chemical/physical processes, etc.

Active Publication Date: 2021-04-27
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common point of the above patents is that the processing of the precursor after spinning does not involve chemical reactions of other substances except polyacrylonitrile

Method used

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  • A preparation g-c <sub>3</sub> no <sub>4</sub> Method of composite carrier with carbon fiber
  • A preparation g-c <sub>3</sub> no <sub>4</sub> Method of composite carrier with carbon fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]Take 0.5g of melamine and 1.5g of polyacrylonitrile, add it to 14 mL of N,N-dimethylamide reagent, mix well, and the spinning conditions are: voltage 15kV, pushing speed 1mL / h, needle point distance The distance between the receiver is 10cm, and the receiver is aluminum foil, and the spun fiber is obtained by spinning. The spun fiber is pre-oxidized at 280°C for 4h, and carbonized at 700°C for 4h, and then the carbonized composite carrier Put it into a quartz boat containing an appropriate amount of water, so that the water just submerges the composite carrier, and treat it for 1 hour under the conditions of an ozone concentration of 30 mg / L and an ultraviolet power of 300W to obtain g -C 3 N 4 and carbon fiber composite carrier.

[0023] g -C 3 N 4 Composite carrier with carbon fiber for multi-batch fermentation of immobilized Aspergillus niger to produce calcium gluconate:

[0024] Inoculate Aspergillus niger into the solid medium, after culturing for 48 hours, w...

Embodiment 2

[0029] Take 0.4 g of urea and 2.5 g of polyacrylonitrile, add to 22 mL of N,N-dimethylamide and tetrahydrofuran reagent (V N,N-二甲基酰胺 :V 四氢呋喃 =17:5), after mixing evenly, under the conditions of spinning conditions: voltage 18kV, pushing speed 1 mL / h, distance between the needle tip and the receiver 8 cm, and the receiver is made of aluminum foil, spin to obtain Spin the fiber, pre-oxidize the spun fiber at 290°C for 2 hours, and carbonize it at 750°C for 3 hours, then put the carbonized composite carrier into a quartz boat containing 20% ​​hydrogen peroxide to make the hydrogen peroxide Just submerged the composite carrier, and treated for 1h under the conditions of ozone concentration of 20 mg / L and ultraviolet power of 200W, that is g -C 3 N 4 and carbon fiber composite carrier.

[0030] g -C 3 N 4 and carbon fiber composite carrier for the multi-batch fermentation of immobilized Micrococcus rosea to produce trehalose:

[0031] Inoculate Micrococcus rosea into the se...

Embodiment 3

[0036] Take 0.5g of nitrogen-containing organic matter (mass ratio of urea and melamine = 2:3) and 3g of polyacrylonitrile, add it to 28mL of N,N-dimethylamide, mix well, and the spinning condition is: voltage 21kV, the pushing speed is 1 mL / h, the distance between the needle tip and the receiver is 10cm, and the receiver is aluminum foil, the spun fiber is obtained by spinning, the spun fiber is pre-oxidized at 290°C for 2h, and the spun fiber is pre-oxidized at 750°C Carry out carbonization for 3 hours, and then put the carbonized composite carrier into a quartz boat with 30% hydrogen peroxide, so that the hydrogen peroxide just submerges the composite carrier, and treat it for 1.5 h under the condition of ozone concentration of 15 mg / L to obtain g -C 3 N 4 and carbon fiber composite carrier.

[0037] g -C 3 N 4 and carbon fiber composite carrier for immobilized Pseudomonas putida multi-batch fermentation to produce trehalose:

[0038] Inoculate Pseudomonas putida into...

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Abstract

a preparation g -C 3 N 4 In the method of composite carrier with carbon fiber, a certain amount of nitrogen-containing organic matter is added to the organic reagent, after mixing evenly, electrospinning is carried out, and the product is pre-oxidized and carbonized, and then the product is oxidized to obtain g -C 3 N 4 and carbon fiber composite carrier. Preparation of the present invention g -C 3 N 4 Composite carrier with carbon fiber has the characteristics of simple preparation process, adjustable specific surface area, pore size and surface polarity of the carrier. When applied to immobilized cell fermentation, it has high immobilization efficiency and fermentation stability.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular to a preparation g -C 3 N 4 and carbon fiber composite carrier method. Background technique [0002] Carbon fiber has the advantages of large adsorption capacity, high strength, small filter resistance, not easy to pulverize and compact, resistant to strong acid and alkali, and can be reused many times. It is a new type of carrier material with strong stability and good biocompatibility. Due to its excellent structural characteristics and surface properties, carbon fiber, as a new type of biological immobilization carrier, has gradually shown excellent performance and application prospects. [0003] g -C 3 N 4 It is a graphitic carbon nitride with an all-organic delocalized π-conjugated structure with a band gap of 2.7 eV. Due to the delocalized π-π structure, g -C 3 N 4 It possesses fast photoinduced charge separation and relatively slow charge recombination prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00
CPCB01J32/00
Inventor 王乐位启先王文腾
Owner HENAN UNIVERSITY OF TECHNOLOGY
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