Bismuth molybdate graphene aerogel compound and preparation method thereof

A technology of graphene airgel and graphene hydrogel, which is applied in chemical instruments and methods, catalyst activation/preparation, water pollutants, etc., can solve the problems of low visible light absorption, hindering practical application, and low specific surface area. Achieve the effects of improving chemical action, prolonging life, and improving adsorption capacity

Inactive Publication Date: 2018-10-09
JIANGNAN UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Bi 2 MoO 6 It has certain application prospects in the field of photocatalysis, but its low specific surface are

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bismuth molybdate graphene aerogel compound and preparation method thereof
  • Bismuth molybdate graphene aerogel compound and preparation method thereof
  • Bismuth molybdate graphene aerogel compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1: Preparation of reduced graphene oxide aerogel (GA) and photodegradation of pollutants

[0024] (1) Synthesis of reduced graphene oxide aerogel (GA): 10 mL of GO (2 mg / mL) suspension was sonicated for 1 hour at room temperature to form a uniform solution. Then add 0.04 g of L-lysine to the prepared GO solution under vigorous stirring and stir for 1 hour. After that, the solution was transferred to a 50 mL high-pressure hydrothermal reaction vessel lined with polytetrafluoroethylene and heated at 160°C for 10 hours. After cooling to room temperature, a 3D reduced graphene oxide hydrogel was obtained, which was immersed in deionized water and absolute ethanol for several times, and the resulting composite was further freeze-dried at -50°C for 24 hours. Finally, a 3D independent mesoporous product of reduced graphene oxide aerogel (GA) is obtained;

[0025] (2) Reduced graphene oxide aerogel (GA) photodegradation of organic pollutants: Add reduced graphene oxide aer...

Example Embodiment

[0026] Example 2: Pure Bi 2 MoO 6 Preparation and photodegradation of pollutants

[0027] (1) Pure Bi 2 MoO 6 Synthesis: At room temperature, 0.15g of Bi(NO 3 ) 3 .5H 2 O and 0.025g (NH 4 ) 6 Mo 7 O 24 .4H 2 O was dissolved in 10 mL of deionized water, sonicated for 1 hour at room temperature (referred to as solution A), and then 0.04 g of L-lysine was added dropwise to solution A under vigorous stirring and stirred for 1 hour. After that, the solution was transferred to a 50 mL high-pressure hydrothermal reaction vessel lined with polytetrafluoroethylene and heated at 160°C for 10 hours. After cooling to room temperature, it was immersed in deionized water and absolute ethanol for several times, and the resulting product was further freeze-dried at -50°C for 24 hours. Finally, obtain pure Bi 2 MoO 6 ;

[0028] Pure Bi 2 MoO 6 Light degradation of organic pollutants: the pure Bi 2 MoO 6 It was added to 60 mL of a 10 mg / L methylene blue aqueous solution, stirred in the dark for 60 ...

Example Embodiment

[0029] Example 3: 3D Bi 2 MoO 6 / Reduced graphene oxide aerogel composite synthesis and photodegradation of organic pollutants

[0030] (1)Bi 2 MoO 6 / Synthesis of reduced graphene oxide aerogel composite: 10 mL GO (2.0 mg / mL) suspension was sonicated for 1 hour at room temperature to form a uniform solution. At the same time, 0.15g of Bi(NO 3 ) 3 .5H 2 O and 0.025g (NH 4 ) 6 Mo 7 O 24 .4H 2 O was dissolved in 10 mL of deionized water, sonicated for 1 hour at room temperature (referred to as solution A), and then the prepared GO solution and 0.04 g of L-lysine were added dropwise to solution A under vigorous stirring and stirred for 1 hour. After that, the solution was transferred to a 50 mL high-pressure hydrothermal reaction vessel lined with polytetrafluoroethylene and heated at 160°C for 10 hours. After cooling to room temperature, three-dimensional (3D) Bi is obtained 2 MoO 6 / Reducing the graphene oxide hydrogel composite, immersing it in deionized water and absolute ethan...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses bismuth molybdate graphene aerogel compound and a preparation method thereof and belongs to the technical field of photocatalyst preparation. According to the bismuth molybdategraphene aerogel compound disclosed by the invention, graphene oxide is utilized as a raw material, hexaammonium molybdate tetrahydrate and anhydrous bismuth nitrate are utilized as raw materials forpreparing Bi2MoO6, and 3D Bi2MoO6/reduced graphene oxide aerogel compound can be finally obtained through solvent heat and freeze drying treatment. The life of an electron-hole pair of the synthesized 3D Bi2MoO6/reduced graphene oxide aerogel compound is longer, adsorption capacity of the synthesized 3D Bi2MoO6/reduced graphene oxide aerogel compound to organic pollutants and absorption capacityof the synthesized 3D Bi2MoO6/reduced graphene oxide aerogel compound to visible light are also enhanced, and catalytic degradation activity to the organic pollutants under the visible light is higher. A photodegradation rate of the 3D Bi2MoO6/reduced graphene oxide aerogel compound is 2.1 times of that of Bi2MoO6 and is 2.46 times of that of reduced graphene oxide aerogel, and the 3D Bi2MoO6/reduced graphene oxide aerogel compound has higher actual application value.

Description

technical field [0001] The invention relates to a bismuth molybdate graphene airgel composite and a preparation method thereof, belonging to the technical field of photocatalyst preparation. Background technique [0002] At present, with the rapid development of industry, the problem of environmental pollution, especially the problem of organic pollutants is becoming more and more serious. Generally speaking, adsorption is one of the important methods to solve organic pollutants. Among many adsorption materials, the three-dimensional porous structure of reduced graphene oxide airgel (GA) has the advantages of low cost, convenient operation, large surface area, and large open pores, so it has a high adsorption rate for organic pollutants (Acs Applied Materials & Interfaces, 2012, 4(8), pp 4373–4379). Although reduced graphene oxide airgel is considered to be an effective adsorption material for organic pollutants, toxic organic pollutants are only aggregated together instea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/31B01J37/10B01J37/34B01J37/16B01J37/02C02F1/30C02F101/30
Inventor 刘湘王珏张倩文夏咏梅王海军
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap