Method for preparing silver/silver chloride composite nanocube

A nano-cube, silver chloride technology, applied in the direction of chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve the problems of in-depth understanding of the limited catalytic activity performance, poor uniformity of silver chloride materials, poor stability, etc., to achieve excellent The effect of good activity, uniformity and high product yield

Active Publication Date: 2017-09-15
SHAANXI NORMAL UNIV
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, studies have found that certain crystal faces of silver chloride, such as {111} crystal faces and {100} crystal faces, have excellent activity for photocatalytic degradation of pollutants, but silver chloride is also photosensitive. materials, the stability under light is poor, so improving the stab

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
  • Method for preparing silver/silver chloride composite nanocube
  • Method for preparing silver/silver chloride composite nanocube
  • Method for preparing silver/silver chloride composite nanocube

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] 1. Preparation of silver chloride nanocubes

[0031] Take 0.5mL 0.1mol / L silver nitrate aqueous solution, 1mL 0.5mol / L polyacrylamine hydrochloride aqueous solution with a number average molecular weight of 150,000, and 20mL 0.025mol / L sodium chloride aqueous solution and mix them evenly. Use 0.5mol / L hydrogen Adjust the pH value of the resulting mixture with sodium oxide aqueous solution to 8, and react at 60°C for 1.5 hours, and centrifuge to obtain silver chloride nanocubes (see figure 1 ).

[0032] 2. Preparation of silver / silver chloride nanocubes

[0033] The silver chloride nanocubes obtained in step 1 were added to 10 mL of diethylene glycol, dispersed uniformly by ultrasonic, and reduced at 150° C. for 1.5 hours to obtain silver / silver chloride nanocubes. by figure 2 with 3 It can be seen that the size of the silver / silver chloride nanocube is about 120-130 nm.

Example Embodiment

[0034] Example 2

[0035] In Example 1, 20mL of 0.025mol / L sodium chloride aqueous solution was replaced with 20mL of 0.025mol / L potassium chloride aqueous solution, and the other steps were the same as in Example 1, to obtain silver / silver chloride nanocubes (see Figure 4 ).

Example Embodiment

[0036] Example 3

[0037] In Example 1, 1 mL of 0.5 mol / L polyacrylamine hydrochloride aqueous solution with a number average molecular weight of 150,000 was replaced with 1 mL of 0.5 mol / L polyacrylamine hydrochloride aqueous solution with a number average molecular weight of 5,000. The other steps are the same as the examples 1 same, get silver / silver chloride nanocube (see Figure 5 ).

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
Sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for preparing silver/silver chloride composite nanocubes. The method comprises the following steps: by taking poly(allylamine) hydrochloride as a stabilizer, firstly, adding certain ratios of silver nitrate and sodium chloride or potassium chloride to synthesize silver chloride nanocubes, and performing diglycol reduction on the obtained silver chloride nanocubes, thereby obtaining the silver/silver chloride composite nanocubes. By adopting the method, a relatively long reaction time is not needed, a complex pH regulation process is not needed, the operation is simple, the amount of reduced Ag is effectively controlled by controlling the reduction reaction time, then the silver/silver chloride composite nanocubes which are high in yield, high in purity and controllable in component are prepared, and moreover the obtained nanocubes are regular in shape, uniform in size and applicable to large-scale production.

Description

technical field [0001] The invention relates to a method for preparing silver / silver chloride composite nano cubes. The nano particles are used as photocatalysts to exhibit higher catalytic activity and stability to pollutants such as potassium dichromate and rhodamine B. Background technique [0002] With the rapid development of industrial technology, heavy metals and organic pollutants have an increasing impact on the environment and human existence, especially the carcinogen dichromate, which poses a huge threat to human health. Studies in recent years have found that some semiconductor composite materials can use light sources to catalyze the degradation of dichromate, but the activity of existing commercial photocatalysts is far from meeting people's needs. The need to find a new type of high-efficiency light utilization material has attracted more and more attention from researchers. [0003] In recent years, studies have found that certain crystal faces of silver ch...

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): B01J27/10B82Y30/00B82Y40/00C02F1/30C02F101/22C02F101/30
CPCB01J27/10B82Y30/00B82Y40/00C02F1/30C02F2101/22C02F2101/308
Inventor 陈煜汉术和刘慧敏
Owner SHAANXI NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap