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A kind of azo dye adsorbent and its application

An azo dye and adsorbent technology, which is applied in the field of environmental engineering to achieve the effects of large adsorption capacity, increased specific surface area and simple composition

Inactive Publication Date: 2016-05-18
LIAOCHENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, using FeCl 3 A Novel Nanoscale Coordination Polymer Formed by Reacting with 1,3,5-Benzenetricarboxylic Acid and Its Application for Adsorption of Azo Dyes Has Not Been Reported

Method used

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  • A kind of azo dye adsorbent and its application
  • A kind of azo dye adsorbent and its application
  • A kind of azo dye adsorbent and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for synthesizing an azo dye adsorbent with strong adsorption capacity, the solvent used in the step (1) is 2.5ml of water and 2.5ml of ethanol. In step (2), 1,3,5-benzenetricarboxylic acid (solid) is 0.1050g (0.5mmol), in step 3) FeCl trichloride 3 (Solution) was 5ml (0.5mmol). TEM pictures were obtained in JEOL2010 with an accelerating voltage of 200kV. The morphology of the adsorbent determined by the electron microscope is a sheet structure with a thickness of 10-15nm. The measured specific surface area is 80g / m 2 . X-ray powder diffraction determined that the powder diffraction of the synthesized adsorbent had very high intensity at 2θ=19° and 2θ=27°. The infrared spectrum was measured by an infrared spectrometer (Nicolet5700FT-IR). Infrared spectrum at 1720cm -1 Strong absorption at , indicating that the nitrogen-containing dye adsorbent has a carboxylated surface structure.

Embodiment 2

[0042] A method for synthesizing an azo dye adsorbent with strong adsorption capacity, the solvent used in step 1) is 20ml of water and 20ml of ethanol. In step (2), 1,3,5-benzenetricarboxylic acid (solid) is 0.4200g (2mmol), in step 3) FeCl 3 (Solution) was 20ml (2mmol). TEM pictures were obtained in JEOL2010 with an accelerating voltage of 200kV. The morphology of the adsorbent determined by transmission electron microscopy is a sheet structure with a thickness of 10-15nm. The measured specific surface area is 80g / m 2 . X-ray powder diffraction determined that the powder diffraction of the synthesized adsorbent had very high intensity at 2θ=19° and 2θ=27°. The infrared spectrum was measured by an infrared spectrometer (Nicolet5700FT-IR). Infrared spectrum at 1720cm -1 Strong absorption at , indicating that the nitrogen-containing dye adsorbent has a carboxylated surface structure.

Embodiment 3

[0044] A method for synthesizing an azo dye adsorbent with strong adsorption capacity, the solvent used in step 1) is 80ml of water and 80ml of ethanol. In step (2), 1,3,5-benzenetricarboxylic acid (solid) is 0.8400g (4mmol), in step 3) FeCl 3 (Solution) was 160ml (4mmol). TEM pictures were obtained in JEOL2010 with an accelerating voltage of 200kV. The morphology of the adsorbent determined by transmission electron microscopy is a sheet structure with a thickness of 10-15nm. The measured specific surface area is 80g / m 2. The powder diffraction of the synthesized adsorbent is determined by X-ray powder diffraction at 2θ=19° and 2θ=27° with very high intensity. The infrared spectrum was measured by an infrared spectrometer (Nicolet5700FT-IR). Infrared spectrum at 1720cm -1 There is a strong absorption at , indicating that the azo dye adsorbent has a carboxylated surface structure.

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Abstract

The invention discloses an azo dye adsorbent and application thereof. The azo dye adsorbent is a novel nanoscale coordination polymer material which is synthesized by FeCl3 and 1, 3, 5-trimesic acid using a solvothermal method. The novel nanoscale coordination polymer material is used for treatment of azo dye waste water. The azo dye adsorbent has the beneficial effect of adopting a simple preparation method, being high in material purity, rapid and fast in adsorption, wide in application scope, free from residue and toxic and side effects, and is expected to be widely used in the field of environment engineering.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to an azo dye adsorbent and its preparation method and application. Background technique [0002] Dye is a typical fine chemical product, and its wastewater has the characteristics of high concentration of organic matter, complex components, many refractory substances, large chroma, and toxicity. Azo dyes are currently the most widely used dyes in the printing and dyeing industry. They have stable chemical properties, and their wastewater has the characteristics of deep color, difficult treatment, high toxicity of degradation products and great environmental hazards. At present, in our country, the treatment of azo dye wastewater is still a big problem, so the research on its treatment technology has important practical value and theoretical significance. [0003] At present, the methods commonly used to treat azo dye wastewater mainly include adsorpti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F103/30
Inventor 曾涑源段升霞唐荣风李蕾孙德志
Owner LIAOCHENG UNIV
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