A kind of preparation method of iron-based nanorod

A nanorod, iron-based technology, applied in the field of preparation of iron-based nanorods, can solve the problems of inability to carry out large-scale industrial production, unsuitable for industrial production, complex production process, etc., and achieves improved preparation efficiency and less environmental dependence. , the effect of short process cycle

Active Publication Date: 2017-11-03
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0003] At present, the preparation methods of iron-based nanorods mainly include: reverse micelle method, solvothermal method, molecular beam epitaxy method, template method, laser evaporation method, arc evaporation method, catalytic pyrolysis method, etc. Large-scale industrial production cannot be carried out due to problems such as complex process, low production efficiency, high production cost, and environmental pollution.
[0004] In the prior art, Chinese patent application No. 201110037640.6 discloses a method for preparing iron ferric oxide nanorods. The technical scheme is to dissolve ferric salt in a mixed solvent of water and ethanol, and ~150℃ for 10~60 hours to prepare iron oxide nanorods; this method can not only simplify the production process, but also effectively prevent environmental pollution, but the preparation conditions of this method are harsh, the process cycle is too long, and the production efficiency is low. The production cost is high, so this method is not suitable for large-scale industrial production

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preparation example Construction

[0021] The preparation method of the iron-based nanorod provided by the present invention is described in detail below.

[0022] A method for preparing iron-based nanorods, comprising: putting polished iron materials into an aqueous dye solution, and performing ultrasonic cavitation treatment, thereby preparing iron-based nanorods on the surface of the iron materials.

[0023] Wherein, the dyeing agent is any one of methylene blue and methylene green, and the dyeing agent aqueous solution can be prepared from tap water or distilled water.

[0024] Specifically, the preparation method of the iron-based nanorods may include the following embodiments:

[0025] (1) The iron material can be pure iron, carbon steel or cast iron material, but it is better to select the iron material with a smooth and flat surface, which helps to generate iron-based nanorods on the surface of the iron material. In order to make the surface of the iron material smooth, it is best to polish the iron ma...

Embodiment 1

[0035] Put the polished Q235 steel block into 0.05g / L methylene blue tap water solution, and put it into the ultrasonic vibration device. The distance between the vibration head of the ultrasonic vibration device and the polished surface of the iron material is 35mm. Perform ultrasonic cavitation treatment for 25 minutes; then take out the Q235 steel block from the ultrasonic vibration device, use ethanol to perform centrifugal cleaning, and after drying, collect the surface products of the Q235 steel block, which are iron-based nanorods.

[0036] It can be known by weighing method measurement: in this embodiment 1, the average production efficiency of iron nanorods is 500g / m 2 h, the chemical properties of the prepared iron-based nanorods are stable, and there is no change in shape and composition after being stored in the atmosphere at room temperature for 3 months.

[0037] Adopt electron microscope scanning to this iron-based nanorod in the prior art, obtain as follows f...

Embodiment 2

[0039] Put the polished Q235 steel block into 0.05g / L methylene blue tap water solution, and put it into the ultrasonic vibration device. The distance between the vibration head of the ultrasonic vibration device and the polished surface of the iron material is 40mm. Ultrasonic cavitation treatment was carried out for 20 minutes; then the Q235 steel block was taken out from the ultrasonic vibration device, cleaned by centrifugation with acetone, and after drying, the surface products of the Q235 steel block were collected, which were iron-based nanorods.

[0040] It can be known by weighing method measurement: in this embodiment 2, the average production efficiency of iron nanorods is 400g / m 2 h, the chemical properties of the prepared iron-based nanorods are stable, and there is no change in shape and composition after being stored in the atmosphere at room temperature for 3 months.

[0041] Adopt electron microscope scanning to this iron-based nanorod in the prior art, obtai...

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Abstract

The invention discloses a method for preparing iron-based nanorods. The polished iron material is put into a nearly saturated aqueous dye solution, and ultrasonic cavitation treatment is performed, so that the iron-based nanorods are prepared on the surface of the iron material; Wherein, the dyeing agent is any one of methylene blue and methylene green. The embodiment of the present invention not only has simple operation, short process cycle and high production efficiency, but also has low environmental dependence of preparation conditions, low production cost, environmental protection and no pollution, and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing iron-based nanorods. Background technique [0002] Iron-based nanorods are one-dimensional iron oxide materials with nanoscale rod-like or rod-bundle shapes. They have good photoelectric properties, thermal conductivity, magnetic properties, mechanical properties and catalytic properties, and can be used as new materials. The building blocks of a generation of nano-optoelectronics, electrochemistry, and electromechanics. [0003] At present, the preparation methods of iron-based nanorods mainly include: reverse micellar method, solvothermal method, molecular beam epitaxy method, template method, laser evaporation method, arc evaporation method, catalytic pyrolysis method, etc. Due to problems such as complex process, low production efficiency, high production cost, and environmental pollution, large-scale industrial production cannot be ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F4/00
Inventor 刘峰斌曾箐雨蒋涵崔岩焦志伟屈敏杨越
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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