Biological template method for preparing tubular ZnO-SnO2 composite nano material

A composite nanomaterial, zno-sno2 technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve ecological environment and human health hazards, affect aquatic life Plant photosynthesis, difficult biodegradation and other problems, to achieve the effect of good repeatability, high catalytic activity and stability, and simple preparation method

Active Publication Date: 2021-05-28
SHANDONG UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Environmental wastewater contains a large number of organic pollutants (such as methylene blue, methyl orange, Congo red, etc.), which have the characteristics of high chroma, biotox

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
  • Biological template method for preparing tubular ZnO-SnO2 composite nano material
  • Biological template method for preparing tubular ZnO-SnO2 composite nano material
  • Biological template method for preparing tubular ZnO-SnO2 composite nano material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026]Example 1.

[0027](1) Preparation Template

[0028]Purchase fresh bean sprouts and washes the visible stains on the surface, take the stem to cut about 2 cm left and right length, and soak it in a 0.1 mol / L hydrochloric acid solution 12h, after removal, washed with deionized water to neutral, forming a bean sprout template .

[0029](2) impregnation template

[0030]The 10 g of the bean sprout template was dispersed in 200 ml of anhydrous ethanol to form a mixture. Nitrate zinc and tetrachloride were dissolved in water formation of aqueous solution of 1: 0.2 to 1: 0.2, which was b solution; and the total concentration of the metal salt solution in the aqueous solution was 0.2 mol / L. The 200 mL B solution was taken, and the A solution was added dropwise to the A solution with magnetic stirring, and stirred for 12 h.

[0031](3) Preparation of a tubular ZnO-SNO2Composite nanomaterial

[0032]The impregnated template was taken out, washed several times with deionized water, dry 60 ° C, and ca...

Example Embodiment

[0034]Example 2.

[0035](1) Preparation Template

[0036]Purchase fresh bean sprouts and washes the visible stains on the surface, take the stem to cut about 2 cm left and right length, and soak it in a 0.1 mol / L hydrochloric acid solution 12h, after removal, washed with deionized water to neutral, forming a bean sprout template .

[0037](2) impregnation template

[0038]The 10 g of the template was dispersed in 200 ml anhydrous ethanol to form a mixture. The tin chloride and zinc chloride were dissolved in water to form aqueous solution of a molar ratio of 1: 0.4, and a B solution was recorded; and the total concentration of the metal salt solution in the aqueous solution was 0.4 mol / L. The 200 mL B solution was taken to a solution below the A solution, and the impregnation of 24 h was continuously stirred.

[0039](3) Preparation of a tubular ZnO-SNO2Composite nanomaterial

[0040]The impregnated template was taken out, washed several times with deionized water, dry 60 ° C, and calcined for 3...

Example Embodiment

[0042]Example 3.

[0043](1) Preparation Template

[0044]Purchase fresh bean sprouts and washes the visible stains on the surface, take the stem to cut about 2 cm left and right length, and soak it in a 0.1 mol / L hydrochloric acid solution 12h, after removal, washed with deionized water to neutral, forming a bean sprout template .

[0045](2) impregnation template

[0046]The 5G bean sprout template was dispersed in 100 ml of anhydrous ethanol to form a mixture. The tin chloride and zinc sulfate were dissolved in water to form aqueous solution of a molar ratio of 1: 0.2, which was reiced as a B solution; and the total concentration of the metal salt solution in the aqueous solution was 0.6 mol / L. The 100 mL B solution was taken, and the A solution was added dropwise to the a solution with magnetic stirring, and the stirred was impregnated for 6 to 48 h.

[0047](3) Preparation of a tubular ZnO-SNO2Composite nanomaterial

[0048]The impregnated template was removed, washed several times with deio...

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 discloses a method for preparing a tubular ZnO-SnO2 composite nano material based on a bean sprout template method. The method comprises the following steps: (1) purchasing fresh bean sprouts, and pretreating the fresh bean sprouts to form a bean sprout template; (2) dipping the template; and (3) taking out the impregnated template, cleaning, soaking and drying the template, calciningthe template in a muffle furnace, and naturally cooling the template to obtain the tubular ZnO-SnO2 composite nano material. The method for preparing the tubular ZnO-SnO2 composite nanomaterial is simple, the raw materials are wide in source, low in cost, green and free of pollution, and the prepared material has high catalytic activity and thermal stability; when the material is applied to purification treatment of organic dye wastewater, the organic dye wastewater can be effectively catalytically degraded.

Description

technical field [0001] The invention relates to a method for preparing a tubular composite nanomaterial, in particular to preparing a tubular ZnO-SnO with bean sprouts as a template 2 The method for compounding nanometer materials belongs to the technical field of semiconductor photocatalysis. Background technique [0002] Environmental wastewater contains a large number of organic pollutants (such as methylene blue, methyl orange, Congo red, etc.), which have the characteristics of high chroma, biotoxicity, and refractory biodegradation. Entering the water environment will seriously affect the photosynthesis of aquatic plants. Serious harm to the ecological environment and human health. Among the many methods to control water pollution, semiconductor photocatalysis technology, as a green, non-polluting and sustainable technology, has the advantages of low cost, non-toxic, strong photocatalytic activity, etc., because it can use solar energy to solve the increasingly seriou...

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): B01J23/14B01J37/02B01J37/00B01J37/08C02F1/30C02F101/36C02F101/38
CPCB01J23/14B01J23/002B01J35/004B01J35/0013B01J37/0201B01J37/0018C02F1/30C02F2305/10C02F2101/308C02F2101/36C02F2101/38C02F2101/40
Inventor 杨静张鑫单聪聪马素梅
Owner SHANDONG UNIV OF SCI & TECH
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