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A method of monolayer array of diatom frustule particles

A technology of diatom frustules and particles, which is applied in nanotechnology, nanotechnology, nanostructure manufacturing and other directions, can solve the problems of low forming efficiency, difficult operation and positioning, and cannot be carried out in large quantities, and achieves the effect of low cost and simple method.

Active Publication Date: 2018-11-27
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the particles are arranged and formed in a small area. The self-organized array of diatom frustules on the glass substrate mostly uses cell self-organized split arrangement, lithography-assisted pattern arrangement, and inkjet printing of positively charged polymer materials. However, it is difficult to control the array points, difficult to operate and locate, the implementation process is complicated, the forming efficiency is low, and it cannot be carried out in large quantities.
It cannot meet the needs of many functional micro-devices for diatom shells arranged in a large area

Method used

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  • A method of monolayer array of diatom frustule particles
  • A method of monolayer array of diatom frustule particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Preparation of diatom frustule particles:

[0031] ① Weigh 10g of diatomite as it is (C289), disperse it in 500mL of natural water, stir it evenly with a glass rod, and vibrate it ultrasonically for 2 minutes to obtain the mixture A; stir again, take 50mL of the mixture A into a measuring cylinder filled with 230mL of water, After settling for 3 minutes, take the upper, middle and lower samples of the measuring cylinder and observe them dropwise. Pour off 100mL of the upper mixed solution, and quickly transfer the middle 100mL to the large-capacity beaker B; The only thing is to pour out the large particles of impurities;

[0032] ②Let the mixture in beaker B stand for 2-3 minutes, remove the clear liquid, disperse the sediment at the bottom with 100mL water, filter with a 350-mesh filter, wash and disperse the filtrate with absolute ethanol, and place it in a blank beaker D middle;

[0033] ③Repeat the above steps until the 500mL mixture A prepared is used up. Th...

Embodiment 2

[0046] 1) Preparation of diatom frustule particles:

[0047] ① Weigh 10g of diatomite as it is (C289), disperse it in 500mL of natural water, stir it evenly with a glass rod, and vibrate it ultrasonically for 2 minutes to obtain the mixture A; stir again, take 50mL of the mixture A into a measuring cylinder filled with 230mL of water, After settling for 3 minutes, take the upper, middle and lower samples of the measuring cylinder and observe them dropwise. Pour off 100mL of the upper mixed solution, and quickly transfer the middle 100mL to the large-capacity beaker B; The only thing is to pour out the large particles of impurities;

[0048] ②Let the mixture in beaker B stand for 2-3 minutes, remove the clear liquid, disperse the sediment at the bottom with 100mL water, filter with a 350-mesh filter, wash and disperse the filtrate with absolute ethanol, and place it in a blank beaker D middle;

[0049] ③Repeat the above steps until the 500mL mixture A prepared is used up. Th...

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Abstract

The invention discloses a diatom shell micro particle single layer array method belonging to the technical field of micro nanometer advanced processing. The method achieves the diatom shell micro particle multi-array by the two methods of hexyl hydride swelling and array base transfer. The hexyl hydride swelling array method transfers the densely arranged diatom shell micro particle to a PDMS module, after crossing the liquid state hexyl hydride swelling PDMS, transfers the micro particle to the gas state hexyl hydride inside, achieving a large surface area diatom shell micro particle fast array building, the step is simple, applies speedily, and prices low, and normalizes diatom shell piece single unit, the middle of the shell pieces forms an equidistance array, providing technical support for every type of preparation and application based on the diatom and the diatom soil micro device. The base array transfer method adheres the equidistance array base to the densely arranged diatom shell micro particle, then transfers to the stickness carrying PDMS module, achieving the single layer zone diatom shell micro particle array normalization, the step is simple, speedy, and constructs a base touch face pattern and achieves the single layer densely arranged diatom pattern array normalization.

Description

technical field [0001] The invention belongs to the technical field of micro-nano advanced manufacturing, and in particular relates to a method for a single-layer array of diatom frustule particles. Background technique [0002] With the development of the field of micro-nano materials, it is possible to manufacture functional particles with various shapes and structures. In the micro-nano scale range, the disc-shaped diatom transparent amorphous silica microshell has the characteristics of multi-level complex regular micro-nano pore array structure, large specific surface area, photonic crystal and other characteristics, and has become a research hotspot in the field of micro-nano technology. Utilizing its unique functional structure, it not only improves the processing efficiency and functionality of products, but also forms an interdisciplinary research direction - diatom nanotechnology. In the field of electromagnetic absorption, the shape anisotropic absorbing particle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B3/00B82Y40/00
CPCB82B3/0014B82Y40/00
Inventor 张文强李容张德远
Owner CHINA AGRI UNIV
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