Synthetic method of graphite-like carbon nitride/molybdenum disulfide nanocomposite material

A technology of nanocomposite materials and synthesis methods, which is applied in the field of synthesis of graphite-like carbon nitride/molybdenum disulfide nanocomposite materials, achieving the effects of excellent photocatalytic performance, simple synthesis process and high product purity

Active Publication Date: 2017-11-24
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Synthesis of g-C by Thermal Polymerization 3 N 4 nanopowder, followed by rapid sonication to prepare g-C 3 N 4 / MoS 2 Nanocomposite materials, the product is expected to obtain excellent photocatalytic performance under visible light conditions, however g-C 3 N 4 / MoS 2 The synthesis method of nanocomposites has not been reported yet

Method used

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  • Synthetic method of graphite-like carbon nitride/molybdenum disulfide nanocomposite material
  • Synthetic method of graphite-like carbon nitride/molybdenum disulfide nanocomposite material
  • Synthetic method of graphite-like carbon nitride/molybdenum disulfide nanocomposite material

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) Take a certain amount of urea and put it into a corundum crucible after being ground in an agate mortar;

[0031] (2) Cover the corundum crucible in step (1) and place it in a muffle furnace for calcination. The heating rate is 3°C / min, the holding temperature is 570°C, and the holding time is 3h. After cooling to room temperature, take it out and collect the product g-C 3 N 4 .

[0032] (3) Take a certain amount of ammonium molybdate and ammonium thioacetamide and dissolve them in deionized water respectively, and obtain uniform ammonium molybdate solution and ammonium thioacetamide solution after fully stirring and dissolving, wherein, ammonium molybdate solution, sulfur Mo in substituted acetyl ammonium solution 4+ , The concentration of ammonium thioacetamide is 1mol / L, 2mol / L respectively;

[0033] (4) Get 1 part of ammonium molybdate solution and join in 2.5 parts of ammonium thioacetamide solution with the drip rate of 0.5ml / min, obtain uniform mixed solut...

Embodiment 2

[0039] (1) Take a certain amount of urea and put it into a corundum crucible after being ground in an agate mortar;

[0040] (2) Cover the corundum crucible in step (1) and place it in a muffle furnace for calcination. The heating rate is 5°C / min, the holding temperature is 600°C, and the holding time is 4h. After cooling to room temperature, take it out and collect the product g-C 3 N 4 .

[0041] (3) Take a certain amount of ammonium molybdate and ammonium thioacetamide and dissolve them in deionized water respectively, and obtain uniform ammonium molybdate solution and ammonium thioacetamide solution after fully stirring and dissolving, wherein, ammonium molybdate solution, sulfur Mo in substituted acetyl ammonium solution 4+ , The concentration of ammonium thioacetamide is 1mol / L, 2mol / L respectively;

[0042] (4) Get 1 part of ammonium molybdate solution and join in 2.5 parts of ammonium thioacetamide solution with the drip rate of 0.5ml / min, obtain uniform mixed solut...

Embodiment 3

[0046] (1) Take a certain amount of urea and put it into a corundum crucible after being ground in an agate mortar;

[0047] (2) Cover the corundum crucible in step (1) and place it in a muffle furnace for calcination. The heating rate is 4°C / min, the holding temperature is 580°C, and the holding time is 4h. After cooling to room temperature, take it out and collect the product g-C 3 N 4 .

[0048] (3) Take a certain amount of ammonium molybdate and ammonium thioacetamide and dissolve them in deionized water respectively, and obtain uniform ammonium molybdate solution and ammonium thioacetamide solution after fully stirring and dissolving, wherein, ammonium molybdate solution, sulfur Mo in substituted acetyl ammonium solution 4+ , The concentration of ammonium thioacetamide is 1mol / L, 2mol / L respectively;

[0049] (4) Get 1 part of ammonium molybdate solution and join in 2.5 parts of ammonium thioacetamide solution with the drip rate of 0.5ml / min, obtain uniform mixed solut...

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Abstract

The invention relates to a synthetic method of a graphite-like carbon nitride / molybdenum disulfide (g-C3N4 / MoS2) nanocomposite material. The synthetic method comprises the following steps: firstly, weighing a certain amount of urea and then putting the urea into a corundum crucible; secondly, putting the corundum crucible holding the urea into a muffle furnace and then calcining at a certain temperature to obtain the g-C3N4; thirdly, weighing a certain amount of ammonium molybdate ((NH4)6Mo7O24.4H2O) and thioacetamide (CH3CSNH2)) and respectively dissolving the two substances in deionized water to obtain uniform solutions; fourthly, slowly dropwise adding the ammonium molybdate solution into the thioacetamide solution; fifthly, stirring, then transferring the mixed solution into a reaction still, carrying out thermal insulation under the hydrothermal condition that the temperature is 195 DEG C for 30 hours to obtain MoS2 nanopowder, and then carrying out separation, washing and drying; sixthly, taking a certain amount of the g-C3N4 and a certain amount of the MoS2, and then dissolving the substances in absolute ethyl alcohol, carrying out constant temperature ultrasonic operation for 2 hours and then drying in a water bath kettle with the temperature of 40 DEG C to obtain a finished product. The graphite-like carbon nitride / molybdenum disulfide (g-C3N4 / MoS2) nanocomposite material disclosed by the invention has the advantages of simple synthetic technology, large specific surface area (65 to 75m<2> / g) and excellent visible light photocatalytic performance.

Description

technical field [0001] The invention relates to a chemical synthesis method of oxide semiconductor nanopowder, in particular to a graphite-like carbon nitride / molybdenum disulfide (g-C 3 N 4 / MoS 2 ) Synthesis method of nanocomposite materials. Background technique [0002] Graphite carbon nitride (g-C 3 N 4 ) is an organic polymer nano-semiconductor that does not contain metal components and has a graphene-like sheet structure. With excellent chemical stability, semiconductor performance, thermal stability, high specific surface area, and suitable energy level structure, it has been widely used in the fields of photolysis of water to produce hydrogen, catalysis of organic reactions, and photocatalytic degradation of organic matter. It has attracted many scientific researches. workers' attention. However, the pure phase g-C 3 N 4 Wide band gap, low utilization efficiency of visible light, and fast recombination rate of photogenerated electron-hole pairs. Therefore i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/10C02F1/30C02F101/34C02F101/36C02F101/38
CPCB01J27/24B01J35/004B01J35/1014C02F1/30C02F2101/34C02F2101/36C02F2101/38C02F2305/10
Inventor 贾铁昆李继利付芳李建伟曹建亮徐倩楠张莹李婷婷王孝辉
Owner LUOYANG INST OF SCI & TECH
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