Check patentability & draft patents in minutes with Patsnap Eureka AI!

A nitrogen-doped bioio 3 Preparation method and application of photocatalyst

A photocatalyst and nitrogen-doped technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of poor utilization of sunlight, low catalytic activity of visible light, poor responsiveness of visible light, etc. , to achieve significant photocatalytic degradation of organic pollutants, low product cost, high application prospects and practical value

Active Publication Date: 2021-05-25
JIANGSU UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But BiOIO 3 The bandgap width is large, the response to visible light is poor, the sunlight cannot be well utilized, and its visible light catalytic activity is low

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
  • A nitrogen-doped bioio <sub>3</sub> Preparation method and application of photocatalyst
  • A nitrogen-doped bioio <sub>3</sub> Preparation method and application of photocatalyst
  • A nitrogen-doped bioio <sub>3</sub> Preparation method and application of photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A nitrogen-doped BiOIO 3 The preparation method of photocatalyst comprises the steps:

[0037] BiOIO 3 Preparation: Weigh 0.485g of bismuth nitrate pentahydrate and 0.214g of potassium iodate and dissolve them in 70 mL of distilled water to obtain solution A; transfer solution A to a 100 mL hydrothermal reactor, react at 120°C for 16 hours, and cool naturally to After filtering at room temperature, the resulting solid powder was washed with distilled water, dried at 60°C, and ground to obtain BiOIO 3 Photocatalyst powder.

[0038] Nitrogen-doped BiOIO 3 Preparation: Weigh 0.1g urea and 0.2g BiOIO 3 , placed in a mortar, ground and mixed evenly, transferred to a crucible, and then placed in a muffle furnace for calcination at 180°C for 6h, the product was naturally cooled to room temperature, and ground to obtain nitrogen-doped BiOIO 3 .

[0039] The resulting BiOIO 3 and nitrogen-doped BiOIO 3 The X-ray diffraction pattern of figure 1 shown. Visible nitrogen ...

Embodiment 2

[0041] A nitrogen-doped BiOIO 3 The preparation method of photocatalyst comprises the steps:

[0042] BiOIO 3 Preparation: Weigh 0.485g of bismuth nitrate pentahydrate and 0.214g of potassium iodate and dissolve in 70 mL of distilled water to obtain solution A; transfer solution A to a 100 mL hydrothermal reactor, react at 160°C for 4 hours, and cool naturally to After filtering at room temperature, the obtained solid powder was washed with distilled water, dried at 90°C, and ground to obtain BiOIO 3 Photocatalyst powder.

[0043] Nitrogen-doped BiOIO 3 Preparation: Weigh 0.02g urea and 0.2g BiOIO 3 , placed in a mortar, ground and mixed evenly, transferred to a crucible, and then placed in a muffle furnace for calcination at 260 ° C for 2 h, the product was naturally cooled to room temperature, and ground to obtain nitrogen-doped BiOIO 3 .

[0044] The resulting nitrogen-doped BiOIO 3 The scanning electron microscope image is shown in figure 2 As shown, it can be see...

Embodiment 3

[0046] A nitrogen-doped BiOIO 3 The preparation method of photocatalyst comprises the steps:

[0047] BiOIO 3 Preparation: Weigh 0.485g of bismuth nitrate pentahydrate and 0.214g of potassium iodate and dissolve in 70 mL of distilled water to obtain solution A; transfer solution A to a 100 mL hydrothermal reactor, react at 140°C for 10 hours, and cool naturally to After filtering at room temperature, the obtained solid powder was washed with distilled water, dried at 80°C, and ground to obtain BiOIO 3 Photocatalyst powder.

[0048] Nitrogen-doped BiOIO 3 Preparation: Weigh 0.05g urea and 0.2g BiOIO 3 , placed in a mortar, ground and mixed evenly, transferred to a crucible, and then placed in a muffle furnace for calcination at 230 ° C for 3 h, the product was naturally cooled to room temperature, and ground to obtain nitrogen-doped BiOIO 3 .

[0049] The obtained BiOIO of this embodiment 3 and nitrogen-doped BiOIO 3 The UV-Vis absorption spectrum such as image 3 show...

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 belongs to the technical field of preparation and application of nanomaterials, relates to photocatalysts, and in particular to a nitrogen-doped BiOIO 3 The preparation method of the photocatalyst includes: preparing equimolar mixed solution of bismuth nitrate pentahydrate and potassium iodate, transferring it to a hydrothermal reaction kettle for reaction at 120-160°C for 4-16 hours, filtering after natural cooling, washing with water, drying, and grinding Get BiOIO 3 nanoparticles; the BiOIO 3 Nanoparticles and urea are mixed and ground, placed in a muffle furnace for calcination at 180-260°C for 2-6 hours, after natural cooling, ground to obtain nitrogen-doped BiOIO 3 catalyst of light. The invention also discloses its application in photocatalytic degradation of organic pollutants in waste water. The preparation method of the invention is simple and easy, safe and environment-friendly, low in product cost, easy for industrialized production, and has high application prospect and practical value. The prepared nitrogen-doped BiOIO 3 Photocatalysts can effectively improve the visible light absorption performance of materials, increase the photocurrent intensity of materials, enhance the reactivity of photogenerated electrons and holes in materials, and have significant photocatalytic degradation of organic pollutants.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of nanomaterials, relates to photocatalysts, and in particular to a nitrogen-doped BiOIO 3 Preparation method of photocatalyst and its application. Background technique [0002] With the rapid development of the chemical synthesis industry, a large number of organic chemical substances, such as dyes, pesticides, daily care products, and antibiotics, have been used and discharged in large quantities, causing serious water pollution and posing a huge threat to human health. Treatment technologies for organic pollutants in water usually include biological purification, chemical oxidation, physical adsorption, etc. These technologies have played an important role in today's water environment restoration. However, the application range of biological purification method is limited, and the effect on some low-content, refractory organic pollutants is poor; chemical oxidation method i...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/30C02F101/34C02F101/36C02F101/38
CPCC02F1/30B01J27/24C02F2101/308C02F2101/36C02F2101/38C02F2101/345C02F2101/34C02F2305/10B01J35/39B01J35/23
Inventor 黄立英王雅芹李夜平张艺瑞
Owner JIANGSU UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com