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

Bismuth molybdate/modified MIL-88A-Fe composite photocatalyst and preparation method thereof

A technology of mil-88a-fe and bismuth molybdate, which is applied in the field of photocatalytic materials, can solve the problem that the photocatalytic activity of bismuth molybdate cannot be improved at the same time, and achieve excellent photocatalytic performance, improve transmission capacity, and improve light absorption performance. Effect

Active Publication Date: 2021-08-24
SHENZHEN UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a bismuth molybdate / modified MIL-88A-Fe composite photocatalyst and its preparation method, aiming to solve the problem that the photocatalytic activity of bismuth molybdate cannot be simultaneously improved and the photogenerated current can be effectively promoted in the prior art sub-separation problem

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/modified MIL-88A-Fe composite photocatalyst and preparation method thereof
  • Bismuth molybdate/modified MIL-88A-Fe composite photocatalyst and preparation method thereof
  • Bismuth molybdate/modified MIL-88A-Fe composite photocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The second aspect of the embodiment of the present application provides a method for preparing a bismuth molybdate / modified MIL-88A-Fe composite photocatalyst, comprising the following steps:

[0030] S01. MIL-88A-Fe and cerium salt solution are mixed and treated, followed by photodeposition reaction, and then impurity removal treatment and drying treatment are performed to obtain modified MIL-88A-Fe;

[0031] S02. Mix bismuth salt solution, molybdate solution and modified MIL-88A-Fe for hydrothermal reaction, then perform impurity removal treatment and drying treatment to obtain bismuth molybdate / modified MIL-88A-Fe composite photocatalyst Precursor;

[0032] S03. Under a protective atmosphere, the bismuth molybdate / modified MIL-88A-Fe composite photocatalyst precursor is calcined to obtain the bismuth molybdate / modified MIL-88A-Fe composite photocatalyst.

[0033] The preparation method of the bismuth molybdate / modified MIL-88A-Fe composite photocatalyst provided by ...

Embodiment 1

[0071] Bismuth molybdate / modified MIL-88A-Fe composite photocatalyst and its preparation method

[0072] Bismuth molybdate / modified MIL-88A-Fe composite photocatalyst

[0073] Bismuth molybdate / modified MIL-88A-Fe composite photocatalyst is prepared by the method of the following example 1, and its SEM figure is as follows figure 1 As shown, the bismuth molybdate / modified MIL-88A-Fe composite photocatalyst uses the modified MIL-88A-Fe with needle-like structure as the carrier, and the bismuth molybdate with the sheet structure is loaded on the surface of the modified MIL-88A-Fe; Among them, the modified MIL-88A-Fe is the MIL-88A-Fe with cerium deposited on the surface, the bismuth molybdate is the bismuth molybdate with oxygen vacancies on the surface, and the size of the bismuth molybdate is 20 nanometers; the modified MIL-88A -Fe has a length of 5-7 micrometers and a width of 0.8-1 micrometer.

[0074] Wherein, in the bismuth molybdate / modified MIL-88A-Fe composite photo...

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 relates to the technical field of photocatalytic materials, and provides a bismuth molybdate / modified MIL-88A-Fe composite photocatalyst which is characterized in that the bismuth molybdate / modified MIL-88A-Fe composite photocatalyst takes modified MIL-88A-Fe as a carrier, and bismuth molybdate is loaded on the surface of the modified MIL-88A-Fe; the modified MIL-88A-Fe is MIL-88A-Fe, cerium is deposited on the surface of the MIL-88A-Fe, and the bismuth molybdate is bismuth molybdate with oxygen vacancies on the surface of the bismuth molybdate. The obtained bismuth molybdate / modified MIL-88A-Fe composite photocatalyst can play a role in reducing recombination of photon-generated carriers, the visible light absorption performance is improved, high photocatalytic activity is achieved, and therefore degradation of various refractory organic pollutants such as methylene blue, norfloxacin and methyl orange is improved; and the composite photocatalyst can be widely applied in practice.

Description

technical field [0001] The application belongs to the technical field of photocatalytic materials, and in particular relates to a bismuth molybdate / modified MIL-88A-Fe composite photocatalyst and a preparation method thereof. Background technique [0002] In recent years, with the increasing emphasis on national ecological and environmental issues, the emission standards for high-polluting enterprises such as manufacturing and medical care have gradually increased. Traditional treatment methods have high cost, low treatment efficiency, long treatment cycle, and are prone to desorption and Secondary pollution, especially antibiotic pollutants. In the 1970s, Japanese scientists discovered that titanium dioxide can convert solar energy into chemical energy under sunlight conditions, and thus developed the use of solar energy to degrade organic pollutants. In this regard, the application of photocatalytic technology in sewage treatment has high efficiency, stability, no seconda...

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): B01J31/22B01J37/34B01J37/10B01J37/08C02F1/30C02F101/30C02F101/34C02F101/36C02F101/38
CPCB01J31/1691B01J31/1616B01J37/344B01J37/10B01J37/082C02F2101/30C02F2101/34C02F2101/36C02F2101/38C02F2101/308C02F2101/40C02F2305/10B01J35/39Y02W10/37
Inventor 李亚运吕家宝陈伟敏徐靖曾燮榕
Owner SHENZHEN 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