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Magnetic nano ferrum-carrying ordered mesoporous carbon and preparation method and application thereof

A magnetic nano and mesoporous carbon technology, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve problems such as easy agglomeration, easy oxidation and deactivation, and achieve difficult agglomeration and adsorption capacity Large, not easy to block the effect of pores

Active Publication Date: 2016-02-03
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solved the two technical problems of easy oxidation deactivation and easy agglomeration in the application of nano-zero-valent iron

Method used

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  • Magnetic nano ferrum-carrying ordered mesoporous carbon and preparation method and application thereof
  • Magnetic nano ferrum-carrying ordered mesoporous carbon and preparation method and application thereof
  • Magnetic nano ferrum-carrying ordered mesoporous carbon and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A magnetic nanometer iron-loaded ordered mesoporous carbon of the present invention, the magnetic nanometer iron-loaded ordered mesoporous carbon uses ordered mesoporous silicon SBA-15 as a template, sucrose as a carbon source, and ferric chloride hexahydrate as an iron source , prepared by nano-co-casting one-step method; the specific surface area of ​​magnetic nanometer iron-loaded ordered mesoporous carbon is 536m 2 / g, the pore size is 3.5nm~4.3nm.

[0045] In this embodiment, the magnetic nanoparticles in the magnetic nano-iron-loaded ordered mesoporous carbon are zero-valent iron and iron oxides, and the iron oxides are triiron tetroxide and ferric oxide; Prepared by reduction method.

[0046] A method for preparing the magnetic nanometer iron-loaded ordered mesoporous carbon in the above-mentioned embodiment, comprising the following steps:

[0047] (1) Preparation of ordered mesoporous silicon SBA-15 template:

[0048] (1.1) Add 8.0g of block copolymer P123 t...

Embodiment 2

[0077] An application of the magnetic nanometer iron-loaded ordered mesoporous carbon of the present invention in the removal of bisphenol A in water comprises the following steps:

[0078] Get 6 parts of the magnetic nanometer iron-loaded ordered mesoporous carbon in Example 1, the quality of each part is 0.005g, add respectively in the bisphenol A solution that 10mL concentration is 200mg / L, adjust the pH value to be 5, 7, 9, 10, 11, 12, at a temperature of 25°C and a rotational speed of 150rpm, the oscillation adsorption reaction was carried out for 6 hours, and then the magnetic nanometer iron-loaded ordered mesoporous carbon adsorbed with bisphenol A was magnetically separated from water for 5 minutes to complete the adsorption process. Treatment of bisphenol A in water.

[0079]Utilize the ultraviolet spectrophotometer to measure the amount of unadsorbed bisphenol A in the solution, the result is as follows Figure 8 shown. Depend on Figure 8 It can be seen that the ...

Embodiment 3

[0081] An application of the magnetic nanometer iron-loaded ordered mesoporous carbon of the present invention in the removal of bisphenol A in water comprises the following steps:

[0082] Get 12 parts of magnetic nano iron-loaded ordered mesoporous carbon in Example 1, the quality of each part is 0.005g, join 10mL concentration respectively in the bisphenol A solution that is 200mg / L, adjust the pH value of bisphenol A solution 9, at a temperature of 25°C and a rotational speed of 150rpm, carry out an oscillating adsorption reaction for 5min, 10min, 15min, 20min, 25min, 30min, 60min, 120min, 180min, 240min, 300min, 360min, and the magnetic nanometer adsorbed with bisphenol A Iron-loaded ordered mesoporous carbon is magnetically separated from water for 5 minutes to complete the treatment of bisphenol A in water.

[0083] Utilize the ultraviolet spectrophotometer to measure the amount of unadsorbed bisphenol A in the solution, draw the schematic diagram of adsorption time and...

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Abstract

The invention discloses magnetic nano ferrum-carrying ordered mesoporous carbon and a preparation method and application thereof. The magnetic nano ferrum-carrying ordered mesoporous carbon is prepared by adopting a nano co-casting one-step method. The method comprises the following steps: mixing saccharose, ferric chloride hexahydrate and sulfuric acid solution, adding the mixed solution to ordered mesoporous silicon SBA-15, and carrying out two times of heat treatment, high temperature carbonization and desilicication treatment to obtain the magnetic nano ferrum-carrying ordered mesoporous carbon. The preparation method disclosed by the invention has the characteristics of being simple in steps, low in cost, high in production efficiency, and easy for large-scale production; the prepared material has relatively large specific surface area and pore volume and strong magnetism, can effectively remove bisphenol A in water, not only is large in adsorbing capacity for bisphenol A and high in removal rate of bisphenol A, but also is wide in pH application scope, simple in operation, short in treatment period, and easy for regeneration, and is favorable for efficient automated design in wastewater treatment.

Description

technical field [0001] The invention belongs to the field of water treatment, and relates to a magnetic nanometer iron-carrying ordered mesoporous carbon, a preparation method thereof and an application in removing bisphenol A in water bodies. Background technique [0002] Bisphenol A, also known as BPA, is an important organic chemical raw material, an important derivative of phenol and acetone, and bisphenol A is used to synthesize materials such as polycarbonate (PC) and epoxy resin in industry. It is ubiquitous and has been used since the 1960s to make plastic (milk) bottles, sippy cups for toddlers, and to coat the inside of food and drink (milk powder) cans. Every year, 27 million tons of plastic containing BPA are produced worldwide. But BPA can also lead to endocrine disorders, threatening human health. Obesity from cancer and metabolic disorders is also thought to be involved. Because of this, the control of BPA pollution has received extensive attention. At pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/32C02F1/28C02F101/34
Inventor 汤琳谢志红曾光明王敬敬邓垚成王佳佳魏雪
Owner HUNAN UNIV
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