Preparation and stripping methods of lamellar zinc hydroxide and zinc oxide nanocones

A zinc hydroxide and nano-cone technology, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of little research on the synthesis and stripping of layered zinc hydroxide nanomaterials, high energy consumption, and complexity, and achieve energy saving, The effect of high quality and controllable yield

Active Publication Date: 2017-03-08
CENT SOUTH UNIV
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current method for synthesizing layered hydroxides is still relatively complicated and consumes more energy, and there are few studies on the synthesis and exfoliation of layered zinc hydroxide nanomaterials.

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 and stripping methods of lamellar zinc hydroxide and zinc oxide nanocones
  • Preparation and stripping methods of lamellar zinc hydroxide and zinc oxide nanocones
  • Preparation and stripping methods of lamellar zinc hydroxide and zinc oxide nanocones

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 1.25mmol (0.17g) of zinc chloride and dissolve it in a beaker filled with 150ml of pure water, then weigh 3.125mmol (0.9g) of sodium lauryl sulfate and dissolve it in pure water, stir evenly for 10min, then add 8.75mmol (1.225g) of hexamethylenetetramine, continue to stir for 15 minutes, seal the mouth of the beaker with plastic wrap, move the beaker into a 95°C water bath, and keep it warm for 8 hours. The product obtained by the reaction was centrifuged, washed and dried to obtain a white powder. Such as figure 1 Shown product is identified as layered zinc hydroxide through X-ray powder diffraction; Carry out morphology analysis to layered zinc hydroxide with scanning electron microscope (SEM), from figure 2 , 3 It can be seen that its morphology is a nanocone with a length of about 1.5 μm; the morphology of layered zinc hydroxide was analyzed by transmission electron microscopy (TEM), and the Figure 4 It can be seen that its morphology is a layered nanocon...

Embodiment 2

[0042] Weigh 1.25mmol (0.17g) of zinc chloride and dissolve it in a beaker filled with 150ml of pure water, stir evenly for 10 minutes, add 8.75mmol (1.225g) of hexamethylenetetramine, continue stirring for 15 minutes and seal it with plastic wrap Move the beaker into a 95°C water bath and keep it warm for 8 hours. The product obtained by the reaction was centrifuged, washed and dried to obtain a white powder. Its morphology was analyzed by scanning electron microscope (SEM). Figure 5 It can be seen that its morphology is ZnO nanorods.

Embodiment 3

[0044] Weigh 1.25mmol (0.17g) of zinc chloride and dissolve it in a beaker containing 150ml of pure water, then weigh 1mmol (0.288g) of sodium lauryl sulfate and dissolve it in pure water, stir evenly for 10min and add 8.75mmol ( 1.225g) of hexamethylenetetramine, continue to stir for 15 minutes, seal the mouth of the beaker with plastic wrap, move the beaker into a 95°C water bath, and keep it warm for 8 hours. The product obtained by the reaction was centrifuged, washed and dried to obtain a white powder. Its morphology was analyzed by scanning electron microscope (SEM). Image 6 It can be seen that its morphology is layered zinc hydroxide nanosheets.

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
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses preparation and stripping methods of lamellar zinc hydroxide and zinc oxide nanocones. A lamellar zinc hydroxide nanocone with a uniform shape is obtained through mixing metal zinc salt, an alkali source and an anionic surfactant, carrying out water bath heating in a pure water system and reacting. The lamellar zinc hydroxide nanocone is put into a reaction system and then is heated and stripped to obtain a single-layer zinc hydroxide nano-sheet; meanwhile, the lamellar zinc hydroxide nanocone is calcined at high temperature to obtain a porous zinc oxide nanocone. The preparation and stripping methods disclosed by the invention have the advantages of simple process, safety in operation and wide applicability; the problems of an existing synthetic route that sizes of prepared grains are not uniform, a synthetic process is uncontrollable and cost and energy consumption are relatively high and the like are overcome. Products prepared by the preparation and stripping methods have a novel shape and a uniform size, have a good lamellar structure, and have a wide application prospect in the aspects of organic pollutant adsorption, photocatalysis and the like.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to the preparation and stripping methods of layered zinc hydroxide and zinc oxide nano cones. Background technique [0002] As we all know, layered nanomaterials are an important part of inorganic non-metallic functional nanomaterials, and their main body is generally a two-dimensional nanostructure material formed by the interaction of two metal elements and interlayer ions. Atoms are combined with each other through covalent bonds or hydrogen bonds, and the layers are connected to the main layer through weak van der Waals force or electrostatic interaction. Therefore, it is also called double metal layered hydroxides, referred to as (LDHs), and its chemical composition formula is: M 1-x 2+ N x 3+ (OH) 2 A x / n n- mH 2 O. At the end of the 20th century, researchers discovered that even in the absence of trivalent metal elements, layered materials with a hydro...

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 Applications(China)
IPC IPC(8): C01G9/02
CPCC01G9/02C01P2002/72C01P2004/03C01P2004/04C01P2004/61
Inventor 刘小鹤张丹马仁志邱冠周
Owner CENT SOUTH 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