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

Preparation method and application of hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst

A 2SO4 and photocatalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, inorganic chemistry, etc., can solve the problems that the catalytic performance cannot meet the requirements, etc., and achieve easy batch preparation, cheap and easy-to-obtain raw materials, and novel appearance Effect

Inactive Publication Date: 2014-05-14
NANJING UNIV OF INFORMATION SCI & TECH
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, existing photocatalysts such as TiO 2 , its catalytic performance can not meet the requirements

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
  • Preparation method and application of hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst
  • Preparation method and application of hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst
  • Preparation method and application of hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 30 mL of water into the beaker, add 1 mmol of bismuth nitrate pentahydrate under stirring conditions, and stir for 30 min; then add 0.9 mmol of anhydrous sodium sulfite, stir for 1 h, and transfer to a 50 mL autoclave. The autoclave was sealed, kept at 110°C for 24 hours, and cooled to room temperature. The solution in the autoclave was centrifuged to collect the precipitate, and dried at 50°C for 6 hours to obtain material 1. X-ray electron diffraction image from material 1 ( image 3 ), it can be seen that material 1 is a pure phase of Bi 2 O(OH) 2 SO 4 . From the electron micrograph of material 1 ( figure 1 with figure 2 ), it can be seen that material 1 has a novel morphology, which is a hexagonal hollow tube.

Embodiment 2

[0024] Add 30mL of water into the beaker, add 1.5mmol of bismuth nitrate pentahydrate under stirring conditions, and stir for 30min; then add 1mmol of anhydrous sodium sulfite, stir for 1h, and transfer to a 50mL autoclave. The autoclave was sealed, kept at 150°C for 18 hours, and cooled to room temperature. The solution in the autoclave was centrifuged to collect the precipitate, and dried at 60°C for 5 hours to obtain material 2. From the X-ray electron diffraction image of material 2, it can be seen that material 2 is a pure phase of Bi 2 O(OH) 2 SO 4 . From the electron microscope image of material 2, it can be seen that material 2 has a novel shape, which is hexagonal hollow tube.

[0025]

Embodiment 3

[0027] Add 30mL of water into the beaker, add 2mmol of bismuth nitrate pentahydrate under stirring condition, and stir for 30min; then add 1mmol of anhydrous sodium sulfate, stir for 1h, and transfer to a 50mL autoclave. The autoclave was sealed, kept at 180°C for 12 hours, and cooled to room temperature. The solution in the autoclave was centrifuged to collect the precipitate, and dried at 70°C for 3 hours to obtain material 3. From the X-ray electron diffraction image of material 3, it can be seen that material 3 is a pure phase of Bi 2 O(OH) 2 SO 4 . From the electron microscope image of material 3, it can be seen that material 3 has a novel shape, which is a hexagonal hollow tube.

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 provides a preparation method and application of a hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst and relates to the field of novel catalysts. The preparation method comprises the following steps of dissolving bismuth nitrate pentahydrate and a sulfocompound in water to obtain a mixed solution; placing the mixed solution into a high-pressure reactor kettle, performing sealing at the temperature of 110-180 DEG C for 12-24 hours and performing cooling the solution to be at the room temperature; performing centrifugal precipitation and drying on the solution in the high-pressure reactor kettle to obtain the hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst. The preparation method of the hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst is simple and easy to perform, and the hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst can be prepared in a batch mode and is novel in appearance, in a shape of a hexagonal hollow tube, high in catalytic activity and capable of being applied to degradation of catalyzed organic pollutant substance.

Description

technical field [0001] The invention relates to the field of novel catalysts, in particular to hexagonal hollow tubular Bi 2 O(OH) 2 SO 4 Photocatalysts and their applications. Background technique [0002] The global environmental and energy crisis has prompted scientists all over the world to focus on the research of solar energy conversion and utilization. The research on photocatalysts began in the 1970s with Professor Fujishima and Honda at the University of Tokyo, Japan, who discovered that TiO 2 The single crystal electrode can not only split water but also decompose other harmful pollutants under light. Since then, research on photocatalytic materials and technologies has become popular. [0003] Compared with other technologies, photocatalytic technology has the following advantages: 1) complete degradation, no secondary pollution; 2) easy recycling of catalysts; 3) use of infinite solar energy as energy, low energy consumption; 4) fast reaction rate, no tradit...

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): C01G29/00B01J27/053B01J35/02C02F1/30
CPCY02W10/37
Inventor 滕飞田浩王莉莉孙鹏陈敏东
Owner NANJING UNIV OF INFORMATION SCI & TECH
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