Method for recycling silver nanowire waste

A nano-silver wire and waste technology, which is applied in the field of recycling nano-silver wire waste, can solve the problems of unsatisfactory processing effect and affecting the purity of nano-silver wire, and achieve the effect of increasing the processing effect

Pending Publication Date: 2021-06-11
重庆烯宇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Although nano silver wires have a high yield in a small test, due to kinetic factors in the synthesis of nano materials, it is inevitable that a large number of nanoparticles and nano short rods will appear, which will affect the purity of nano silver wires. The literature has research on the synthesis of high-purity nano-silver wires

Method used

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  • Method for recycling silver nanowire waste

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Embodiment 1

[0024] see figure 1 , the embodiment provided by the present invention: a kind of method for reclaiming nano-silver wire waste, its construction process has pure water ultrasonic → drying → nitric acid dissolution → heating and vacuumizing → purification and separation, it is characterized in that: comprises the following five steps:

[0025] Step 1: import the corresponding proportion of nano-silver wire and pure water into the glass container, put the collected nano-silver wire waste into the glass container and use ultrasonic equipment to ultrasonicate the nano-silver wire waste, pure water can remove the For particles with a particle size below 20nm, especially below 10nm, it is necessary to prevent debris or dust from falling into the glass container during the ultrasonic cleaning process, which will affect the cleaning effect;

[0026] Step 2: using the drying equipment to dry the nano-silver wire waste to make it reach the dryness of the subsequent treatment. When dryin...

Embodiment 2

[0038] 1. The collection process of nano silver wire waste:

[0039]Use recycling equipment to collect nano-silver wire waste into a large container for storage. The storage container needs to be high-strength and anti-corrosion to prevent the container from being damaged by external force during transportation, causing the nano-silver wire waste to scatter. When transporting the nano-silver wire waste to the processing location Unloading, cutting and separating the protective layer on the outside of the nano-silver wire, obtaining the nano-silver wire waste, and using a washing device to wash the surface of the nano-silver wire waste to realize the collection of the nano-silver wire waste.

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Abstract

The invention discloses a method for recycling silver nanowire waste, which comprises the following five construction procedures: pure water ultrasonic treatment of silver nanowires, drying, nitric acid dissolution, heating and vacuumizing, and purification and separation. The method comprises five steps. Silver-containing waste materials left after purification are recycled, an organic solvent is collected and washed, residual silver solids are dissolved through nitric acid and recrystallized, other impurities are not introduced in synthesis, and even chlorine and bromide ion-containing solids required by previous reaction are complexed, washed and dissolved in water by ammonia water, so that higher silver nitrate crystals can be obtained, namely, silver nanowire raw materials. By means of the repeated utilization, the rigorous treatment process, namely the treatment effect, is increased in the aspects of drying, heat preservation, vacuumizing and the like.

Description

technical field [0001] The invention relates to the technical field of nano silver wires, in particular to a method for recycling waste nano silver wires. Background technique [0002] Although nano silver wires have a high yield in a small test, due to kinetic factors in the synthesis of nano materials, it is inevitable that a large number of nanoparticles and nano short rods will appear, which will affect the purity of nano silver wires. The literature has research on the synthesis of high-purity nano-silver wires, but it is limited to small-capacity and low-concentration experiments. There are also a large number of literature reports on the purification of nano-silver wires, but a large number of non-nano There is no report on how to deal with the silver wire waste. The synthesis needs to introduce other impurities, and the treatment effect is not ideal. Contents of the invention [0003] The purpose of the present invention is to provide a method for recycling nano-s...

Claims

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Application Information

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IPC IPC(8): C01G5/00
CPCC01G5/00
Inventor 杨棚竣甘李周明杨建文张林唐波
Owner 重庆烯宇新材料科技有限公司
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