Magnetically Retrievable Neodymium Complexes /go/fe 3 o 4 Ternary compound and its preparation method and application

A ternary complex, neodymium complex technology, used in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of photogenerated electrons and holes. Effective separation, difficult catalyst recovery of MOFs, poor catalytic activity, etc., achieve the effects of fast and efficient degradation, high yield and purity, and simple preparation process

Active Publication Date: 2021-05-14
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the photogenerated electrons and holes cannot be effectively separated during the catalytic process, they are easy to recombine, and the catalytic activity is poor; and the catalyst is difficult to recycle, which limits the application of MOFs in this field.

Method used

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  • Magnetically Retrievable Neodymium Complexes /go/fe <sub>3</sub> o <sub>4</sub> Ternary compound and its preparation method and application
  • Magnetically Retrievable Neodymium Complexes /go/fe <sub>3</sub> o <sub>4</sub> Ternary compound and its preparation method and application
  • Magnetically Retrievable Neodymium Complexes /go/fe <sub>3</sub> o <sub>4</sub> Ternary compound and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of neodymium complex 1:

[0041] Weigh NdCl respectively 3 ·6H 2 O (35.3 mg, 0.1 mmol) and H 3 TCPB (48.6mg, 0.1mmol) was placed in a 23mL polytetrafluoroethylene reactor lining, and 2mL distilled water, 3mL DMF and 3mL absolute ethanol were added, stirred at room temperature for 30 minutes, and then sealed in a stainless steel reactor , after 72 hours of constant temperature reaction in a temperature-controllable oven at 120°C, it was naturally cooled to room temperature to obtain a purple block crystal that meets the requirements of the X-Ray test. The yield was about 42% after continuous washing with distilled water and drying.

[0042] Structure determination of complex 1:

[0043] The crystal sample was fixed on the Bruker SMART 1000 CCD surface probe diffractometer, and the graphite monochromator MoKα was used as the radiation source, and the sample was collected for a wavelength of X-Ray diffraction data. In the ω-scan mode, the diffraction data...

Embodiment 2

[0052] The synthesis method of neodymium complex 1 is the same as that in Example 1.

[0053] Preparation of complex:

[0054] First, 80 mg of 1 was dispersed in 3 mL of ethanol and sonicated for 15 min. Disperse 20 mg of GO in 10 ml of ethanol, ultrasonicate for 15 minutes, add to the above dispersion, reflux for 4 hours and dry, take 5 mg of dried product and add 6 mg of Fe 3 o 4 Sonicate for 1 hour, centrifuge, and collect 1 / GO / Fe 3 o 4 -9 Magnetic nanocomposites.

Embodiment 3

[0056] The synthesis method of neodymium complex 1 is the same as that in Example 1.

[0057] Preparation of complex:

[0058] First, 40 mg of 1 was dispersed in 3 mL of ethanol and sonicated for 15 min. Disperse 20 mg of GO in 10 ml of ethanol, ultrasonicate for 15 minutes, add to the above dispersion, reflux for 4 hours and dry, take 5 mg of dried product and add 6 mg of Fe 3 o 4 Sonicate for 1 hour, centrifuge, and collect 1 / GO / Fe 3 o 4 -15 Magnetic nanocomposites.

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Abstract

The invention discloses a magnetically recoverable neodymium complex / GO / Fe 3 o 4 Ternary compound and its preparation method and application. Preparation method: 1) prepare three-dimensional neodymium complex [Nd 2 (TCPB) 2 (DMF)(H 2 O)] n , 1; 2) Ultrasonic dispersion of complex 1 and graphene oxide (GO) in ethanol solution, reflux for 4 hours and add Fe 3 o 4 , sonicated for 1 hour, filtered, and collected to obtain the ternary complex 1 / GO / Fe 3 o 4 ‑x, where x represents the mass percentage of GO in the composite (x=5‑30%). Experiments show that 1 / GO / Fe 3 o 4 ‑9 has the best photocatalytic performance. It can rapidly catalyze and degrade methylene blue dye under light conditions. The degradation rate can reach 95% in 80 minutes, and it can be recycled in the range of pH=1~13. It is a good photocatalyst for degrading methylene blue dye. .

Description

technical field [0001] The invention relates to a photocatalytic degradation material, specifically a magnetically recyclable neodymium complex / graphene oxide / ferric oxide ternary compound and a preparation method thereof, and the compound is used in the photocatalytic degradation of the organic dye methylene blue in the application. Background technique [0002] With the development of society and industry, dyestuffs are widely used, and their pollution has become an important environmental problem. Therefore, their treatment technology has become an urgent problem to be explored. At present, adsorption and degradation are considered to be one of the efficient means to deal with such problems. Metal-organic frameworks (MOFs) are a new type of inorganic-organic hybrid materials composed of inorganic metal ions and organic ligands. Due to their surface area and other advantages, MOFs have been widely used in the fields of adsorption, fluorescence, catalysis, and chemical se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/28C02F1/30C02F101/30
Inventor 白羽婷冯思思卢丽萍
Owner SHANXI UNIV
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