Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bismuth oxide/bismuthyl carbonate/bismuth molybdate composite photocatalytic material and preparation method thereof

A technology of composite photocatalysis and photocatalytic materials, which is applied in the field of industrial catalytic preparation, can solve the problem of low visible light catalytic activity of bismuth molybdate, and achieve the effects of wide visible light response range, convenient operation and simple preparation process

Active Publication Date: 2019-09-13
YANAN UNIV
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first object of the present invention is to provide a bismuth oxide / bismuth oxycarbonate / bismuth molybdate composite photocatalytic material, which has good visible light response performance and can promote the separation of photogenerated electron-hole pairs, thus solving the problem of molybdenum The problem of low visible light catalytic activity of bismuth acid

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 oxide/bismuthyl carbonate/bismuth molybdate composite photocatalytic material and preparation method thereof
  • Bismuth oxide/bismuthyl carbonate/bismuth molybdate composite photocatalytic material and preparation method thereof
  • Bismuth oxide/bismuthyl carbonate/bismuth molybdate composite photocatalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of preparation method of above-mentioned bismuth oxide / bismuth oxycarbonate / bismuth molybdate composite photocatalytic material of the present invention, specifically implement according to the following steps:

[0042] Step 1.1, measure Bi(NO 3 ) 3 ·5H 2 O and Na 2 MoO 4 2H 2 O, the measured Bi(NO 3 ) 3 ·5H 2 O was dissolved in ethylene glycol solution, and then a measure of Na was added to the ethylene glycol solution 2 MoO 4 2H 2 O, finally stir until a transparent solution is obtained;

[0043] Step 1.2, first add absolute ethanol to the transparent solution obtained in step 1.1 and stir evenly, then transfer it to a stainless steel reaction kettle lined with Teflon and seal it, and then put the reaction kettle into the electric heating constant temperature blast In a drying oven, react at 160°C for 12 hours to obtain a mixed solution A. After the reaction is completed, the mixed solution A is naturally cooled to room temperature, then centrifuged,...

Embodiment 2

[0048] A kind of preparation method of above-mentioned bismuth oxide / bismuth oxycarbonate / bismuth molybdate composite photocatalytic material of the present invention, specifically implement according to the following steps:

[0049] Step 1.1, measure Bi(NO 3 ) 3 ·5H 2 O and Na 2 MoO 4 2H 2 O, the measured Bi(NO 3 ) 3 ·5H 2 O was dissolved in ethylene glycol solution, and then a measure of Na was added to the ethylene glycol solution 2 MoO 4 2H 2 O, finally stir until a transparent solution is obtained;

[0050] Step 1.2, first add absolute ethanol to the transparent solution obtained in step 1.1 and stir evenly, then transfer it to a stainless steel reaction kettle lined with Teflon and seal it, and then put the reaction kettle into the electric heating constant temperature blast In a drying oven, react at 160°C for 12 hours to obtain a mixed solution A. After the reaction is completed, the mixed solution A is naturally cooled to room temperature, then centrifuged,...

Embodiment 3

[0055] A kind of preparation method of above-mentioned bismuth oxide / bismuth oxycarbonate / bismuth molybdate composite photocatalytic material of the present invention, specifically implement according to the following steps:

[0056] Step 1.1, measure Bi(NO 3 ) 3 ·5H 2 O and Na 2 MoO 4 2H 2 O, the measured Bi(NO 3 ) 3 ·5H 2 O was dissolved in ethylene glycol solution, and then a measure of Na was added to the ethylene glycol solution 2 MoO 4 2H 2 O, finally stir until a transparent solution is obtained;

[0057] Step 1.2, first add absolute ethanol to the transparent solution obtained in step 1.1 and stir evenly, then transfer it to a stainless steel reaction kettle lined with Teflon and seal it, and then put the reaction kettle into the electric heating constant temperature blast In a drying oven, react at 160°C for 12 hours to obtain a mixed solution A. After the reaction is completed, the mixed solution A is naturally cooled to room temperature, then centrifuged,...

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 a bismuth oxide / bismuthyl carbonate / bismuth molybdate composite photocatalytic material. The composite photocatalytic material includes a bismuth molybdate photocatalytic material, bismuthyl carbonate and bismuth oxide nanosheets are introduced to the surface of the bismuth molybdate photocatalytic material through Na2CO3 assistance and roasting. The invention also discloses a preparation method of the bismuth oxide / bismuthyl carbonate / bismuth molybdate composite photocatalytic material. The method is specifically implemented according to the steps of: 1. preparing a bismuth molybdate based catalytic material; and 2. introducing bismuthyl carbonate and bismuth oxide nanosheets to the surface of the bismuth molybdate based catalytic material obtained in step 1 by Na2CO3 assistance and roasting, thus obtaining the bismuth oxide / bismuthyl carbonate / bismuth molybdate composite photocatalytic material. The material is free of agglomeration, has wide visible-light response range, significantly improved catalytic activity relative to pure bismuth molybdate, and good reusability, also the preparation process is simple, the conditions are mild, the controllability isgood, and the operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of industrial catalytic preparation, and in particular relates to a bismuth oxide / bismuth oxycarbonate / bismuth molybdate composite photocatalytic material, and also relates to the bismuth oxide / bismuth oxycarbonate / bismuth molybdate composite photocatalytic material and its Preparation. Background technique [0002] Bi 2 MoO 6 (Bismuth molybdate), as the simplest structure of Aurivillius (Olivillius), is produced by (Bi 2 o 2 ) 2+ layer and (MoO 4 ) 2- Layers are stacked alternately to form a layered composite oxide, Bi 2 MoO 6 The valence band is defined by Bi 6s and O 2p Orbital hybridization, the conduction band is Mo 3d Orbital formation, its forbidden band width is about 2.5-2.8eV, the maximum absorption wavelength is about 490nm, it can absorb part of visible light and be excited, therefore, Bi 2 MoO 6 The research and development of photocatalytic materials will provide new ideas for impr...

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): B01J27/232B01J37/08C02F1/30C02F101/34
CPCB01J27/232B01J37/082C02F1/30C02F2101/345C02F2305/10B01J35/39C02F1/725B01J23/18B01J23/31B01J37/009B01J37/031B01J37/0036B01J37/0045B01J37/0238B01J37/343B01J35/23B01J37/0221B01J37/0236B01J37/04B01J37/06B01J37/10
Inventor 付峰申会东王丹军甄延忠薛文文闫龙
Owner YANAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com