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

Preparation method of flower-like ag@agbr/zno photocatalytic material

A photocatalytic material and flower-like technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as unsuitable production efficiency, long preparation time, complex and cumbersome process, etc., to achieve The effect of reducing the difficulty of preparation, saving costs, and strong photocatalytic activity

Active Publication Date: 2020-11-27
HARBIN UNIV OF COMMERCE
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to solve the existing Ag@AgBr / ZnO photocatalytic material preparation method of expensive raw materials, complex and cumbersome process, long preparation time, production efficiency is not suitable for batch production, and the photocatalytic activity of photocatalyst is relatively low. In order to solve the poor problem, a preparation method of flower-like Ag@AgBr / ZnO photocatalytic material is provided

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 of flower-like ag@agbr/zno photocatalytic material
  • Preparation method of flower-like ag@agbr/zno photocatalytic material
  • Preparation method of flower-like ag@agbr/zno photocatalytic material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0035] Specific implementation mode 1: In this implementation mode, the preparation method of the flower-shaped Ag@AgBr / ZnO material photocatalytic material is carried out according to the following steps:

[0036] 1. Weigh zinc acetate dihydrate, silver nitrate, and hexamethylenetetramine according to the ratio of Zn element, Ag element, hexamethylenetetramine and surfactant in the ratio of 1:0.2:1:0.55. Amine and CTAB, configure 0.3333mol / L and 0.1833mol / L of Zn source and surfactant in 30mL distilled water to obtain Zn source solution; configure 0.1mol / L and 0.5mol / L of Ag source and hexamethylene tetra Amine in 20mL distilled water, and add oxidant, Ag source solution;

[0037] 2. Add the Ag source solution drop by drop to the Zn source solution at a rate of 1 second / drop, transfer the mixed solution to a high-pressure reactor for hydrothermal reaction, the mixed solution accounts for about 50% of the reactor volume, set The water heating temperature is 140°C, and the wat...

specific Embodiment approach 2

[0044] 1. Weigh zinc acetate dihydrate, silver nitrate, and hexamethylenetetramine according to the ratio of Zn element, Ag element, hexamethylenetetramine and surfactant in the ratio of 1:0.2:1:0.55. Amine and CTAB, configure 0.3333mol / L and 0.1833mol / L of Zn source and surfactant in 30mL distilled water to obtain Zn source solution; configure 0.1mol / L and 0.5mol / L of Ag source and hexamethylene tetra Amine in 20mL distilled water, and add oxidant, Ag source solution;

[0045] 2. Add the Ag source solution drop by drop to the Zn source solution at a rate of 3 seconds / drop, transfer the mixed solution to a high-pressure reactor for hydrothermal reaction, the mixed solution accounts for about 50% of the reactor volume, set The water heating temperature is 160°C, and the water heating time is maintained at this temperature for 2.5 hours;

[0046] 3. After the resultant was washed with water, washed with alcohol and dried, it was transferred into a muffle furnace, calcined at 50...

specific Embodiment approach 3

[0048] 1. Weigh zinc acetate dihydrate, silver nitrate, and hexamethylenetetramine according to the ratio of Zn element, Ag element, hexamethylenetetramine and surfactant in the ratio of 1:0.2:1:0.55. Amine and CTAB, configure 0.3333mol / L and 0.1833mol / L of Zn source and surfactant in 30mL distilled water to obtain Zn source solution; configure 0.1mol / L and 0.5mol / L of Ag source and hexamethylene tetra Amine in 20mL distilled water, and add oxidant, Ag source solution;

[0049] 2. Add the Ag source solution drop by drop to the Zn source solution at a rate of 2 seconds / drop, transfer the mixed solution to the high-pressure reactor for hydrothermal reaction, the mixed solution accounts for about 50% of the reactor volume, set The water heating temperature is 130°C, and the water heating time is maintained at this temperature for 4 hours;

[0050] 3. After the product was washed with water, washed with alcohol and dried, it was transferred into a muffle furnace, calcined at 700°...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a floriform Ag@AgBr / ZnO photocatalytic material and belongs to the field of nano material preparation. The method comprises the following steps: 1, preparing a surfactant with a certain concentration and a Zn source to serve as a Zn source solution and preparing hexamethylenetetramine with a certain concentration and an Ag source to serve as an Ag source solution; 2, adding an oxidizing agent into the Ag source solution, and dropwise adding the Ag source solution into the Zn source solution at a certain rate; 3, transferring the mixed solution toa high-pressure reaction kettle, and executing hydrothermal reaction at a certain temperature and a certain time; 4, washing the product with water and alcohol and drying the product, calcining it inair, and cooling it to room temperature to obtain the floriform Ag@AgBr / ZnO photocatalytic material. The synthetic method adopted by the invention has the advantages of simple flow, simple and convenient operation and no secondary pollution. The synthesized photocatalytic material has the advantages of uniform morphology, excellent performance and the like. The preparation method belongs to the field of photocatalytic materials.

Description

technical field [0001] The invention relates to a preparation method of a flower-shaped Ag@AgBr / ZnO photocatalytic material. Background technique [0002] ZnO is a semiconductor catalyst widely used in photocatalytic oxidation technology. It has excellent photocatalytic activity, stable chemical properties and high quantum yield. Therefore, ZnO has high application value in sewage treatment and other directions. However, ZnO is a wide-bandgap semiconductor material, which can only stimulate photocatalytic oxidation reactions by ultraviolet light, and the utilization rate of sunlight is only 4%. Quick question. These shortcomings limit its practical application. In order to solve these defects of ZnO, a series of attempts have been made. The study found that the Ag@AgBr plasmonic catalyst, due to the plasmon resonance effect of Ag nanoparticles produced by the decomposition of AgBr in the system, Ag@AgBr can respond to visible light for photocatalytic oxidation process, bu...

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): B01J27/138B01J35/02
CPCB01J27/138B01J35/004B01J35/023
Inventor 谭冲李俊生刘颖杰夏至左金龙刘昊
Owner HARBIN UNIV OF COMMERCE
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