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A kind of preparation method of graphene-antimony sulfide microrod composite photocatalyst

A graphene and micro-rod technology is applied in the field of preparing graphene-antimony sulfide micro-rod composite photocatalyst, and achieves the effects of low implementation cost, excellent product quality and reduced production cost

Inactive Publication Date: 2019-03-19
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This synthesis method has no literature reports at home and abroad, and is novel and creative

Method used

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  • A kind of preparation method of graphene-antimony sulfide microrod composite photocatalyst
  • A kind of preparation method of graphene-antimony sulfide microrod composite photocatalyst
  • A kind of preparation method of graphene-antimony sulfide microrod composite photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh 30mg graphene oxide and add to 39mL deionized water (the amount of deionized water is SbCl 3 2166 times the amount of substance), ultrasonic stripping for 2 hours, to obtain graphene oxide-deionized water dispersion A;

[0026] (2) by SbCl 3 The ratio of the amount of substance to HCl is 1:48, and 0.23g SbCl 3 Dissolve in 4.0mL concentrated hydrochloric acid to get SbCl3 hydrochloric acid solution, then it was added to the above-mentioned graphene oxide-deionized water dispersion A, stirred evenly, to obtain mixed solution B;

[0027] (3) In 17mL deionized water (the amount of deionized water is SbCl 3 944 times the amount of substance), add 0.99g Na 2 S 2 o 3 ·5H 2 O, stirring to dissolve, Na 2 S 2 o 3 ·5H 2 The amount of O species is SbCl 3 4 times of the amount of substance; add 1.68g NaOH again, the ratio of NaOH and the amount of substance of HCl is 1:1.14, to obtain mixed solution C;

[0028] (4) Pour the mixed solution B into the mixed solut...

Embodiment 2

[0032] (1) Weigh 38mg graphene oxide and add it to 32mL deionized water (the amount of deionized water is SbCl 3 1975 times the amount of substance), ultrasonic stripping for 3 hours, to obtain graphene oxide-deionized water dispersion A;

[0033] (2) by SbCl 3 The ratio of the amount of substance to HCl is 1:40, and 0.21g SbCl 3 Dissolve in 3.0mL concentrated hydrochloric acid to get SbCl 3 hydrochloric acid solution, then it was added to the above-mentioned graphene oxide-deionized water dispersion A, stirred evenly, to obtain mixed solution B;

[0034] (3) In 12mL deionized water (the amount of deionized water is SbCl 3 740 times the amount of substance), add 0.67g Na 2 S 2 o 3 ·5H 2 O, stirring to dissolve, Na 2 S 2 o 3 ·5H 2 The amount of O species is SbCl 3 3 times of the amount of substance; add 1.20g NaOH again, the ratio of NaOH and the amount of substance of HCl is 1:1.20, to obtain mixed solution C;

[0035] (4) Pour the mixed solution B into the mixed ...

Embodiment 3

[0037] (1) Weigh 28mg graphene oxide and add it to 32mL deionized water (the amount of deionized water is SbCl 3 1616 times the amount of substance), ultrasonic stripping for 1 hour, to obtain graphene oxide-deionized water dispersion A;

[0038] (2) by SbCl 3 The ratio of the amount of substance to HCl is 1:22, and 0.25g SbCl 3 Dissolve in 2.0mL concentrated hydrochloric acid to get SbCl 3 hydrochloric acid solution, then it was added to the above-mentioned graphene oxide-deionized water dispersion A, stirred evenly, to obtain mixed solution B;

[0039] (3) In 13mL deionized water (the amount of deionized water is SbCl 3 656 times the amount of substance), add 0.55g Na 2 S 2 o 3 ·5H 2 O, stirring to dissolve, Na 2 S 2 o 3 ·5H 2 The amount of O species is SbCl 3 2 times of the amount of substance; add 0.72g NaOH again, the ratio of NaOH and the amount of substance of HCl is 1:1.33, to obtain mixed solution C;

[0040] (4) Pour the mixed solution B into the mixed s...

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Abstract

The invention relates to a preparation method of graphene-antimony sulfide micron rod composite photocatalyst. It includes the following steps: (1) adding graphene oxide to deionized water and ultrasonic peeling to obtain graphene oxide-deionized water dispersion A; (2) adding SbCl 3 Dissolve in concentrated hydrochloric acid, then add to graphene oxide-deionized water dispersion A, stir evenly to obtain mixed solution B; (3) Add Na to deionized water 2 S 2 O 3 ·5H 2 O and NaOH, stir and dissolve to obtain mixed liquid C; (4) Pour mixed liquid B into mixed liquid C and stir continuously to obtain mixed liquid D. Then, hydrothermally treat mixed liquid D for 6 to 18 hours, cool and separate After washing and drying, a graphene-antimony sulfide microrod composite photocatalyst is obtained. The present invention adopts a hydrothermal method to prepare a composite photocatalyst without using organic solvents such as ethylene glycol. It is green and environmentally friendly, has low cost, has good composite effect and high visible light photocatalytic activity.

Description

technical field [0001] The invention relates to the technical field of inorganic synthesis of photocatalytic functional materials, in particular to a method for preparing a graphene-antimony sulfide microrod composite photocatalyst by using a hydrothermal method. Background technique [0002] With the development of social economy, the pollution caused by industrial production is becoming more and more serious, which has seriously threatened the survival of human beings. Environmental pollution control has become a major problem that people need to solve urgently. Semiconductor heterogeneous photocatalysis technology has been paid attention to because of its advantages of directly using sunlight to degrade pollutants, low cost of use, wide application range, complete mineralization of pollutants, and no secondary pollution. The key to the application of photocatalytic technology is to develop excellent photocatalysts. [0003] TiO 2 Photocatalysts are favored by people bec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04B01D53/86B01D53/72
CPCB01D53/8668B01J27/04B01J37/10B01D2257/708B01J35/39
Inventor 朱启安魏明杨胡耐根王建霞朱奕蒋叔立杜寒宇
Owner XIANGTAN UNIV
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