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Imidacloprid/hydrotalcite-like compounds nano hybridisation article and method for producing the same

A nano-hybrid, hydrotalcite technology, applied in the directions of botanical equipment and methods, animal repellents, plant growth regulators, etc., can solve the problems of low effective utilization rate of imidacloprid, achieve good slow-release effect and simple preparation process , the effect of improving the effective utilization

Inactive Publication Date: 2008-06-11
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiency that the effective utilization rate of directly using imidacloprid is low at present, the problem to be solved in the present invention is to provide a kind of imidacloprid / hydrotalcite-like (HTlc) nano-hybrid and preparation method thereof

Method used

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  • Imidacloprid/hydrotalcite-like compounds nano hybridisation article and method for producing the same
  • Imidacloprid/hydrotalcite-like compounds nano hybridisation article and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step a: 8.91g of Zn(NO 3 ) 2 ·6H 2 O and 5.64g of Al(NO 3 ) 3 9H 2 O was dissolved in 50ml of water.

[0041] Step b: Dissolve 2.16 g of SDS in 50 ml of deionized water.

[0042] Step c: Dissolve 4.2g of NaOH in 50ml of deionized water.

[0043] Step d: Dissolve 0.4 g of imidacloprid in 50 ml of toluene / ethanol (volume ratio 4:1) mixed solvent.

[0044] Step e: Add the solution of step a and the solution of step c to the solution of step b at the same time, continuously stir and control the pH to 10, and the reaction temperature is 70°C; filter, wash with water and alcohol, and peptize at 80°C for 24 hours to obtain SDS modified Sexual HTlc.

[0045] Step f: Take 0.2 g of the SDS-modified HTlc sample obtained in step e, disperse it into the solution of step d in a three-necked flask, and react at a constant temperature of 70° C. for 4 days to obtain imidacloprid / HTlc nano-hybrids.

[0046] The sample was analyzed by ultraviolet spectrophotometry, and the conten...

Embodiment 2

[0048] Step a: 8.91g of MgCl 2 ·6H 2 O and 5.64 g FeCl 3 ·6H 2 O was dissolved in 20ml of water.

[0049] Step b: Dissolve 4.32g of SDBS in 50ml of deionized water.

[0050] Step c: Dissolve 4.2 g of NaOH in 20 ml of deionized water.

[0051] Step d: Dissolve 0.24g of imidacloprid in 50ml of toluene / ethanol (volume ratio 4:1) mixed solvent.

[0052] Step e: Add the solution of step a and the solution of step c to the solution of step b at the same time, continuously stir and control the pH to 10.5, the reaction temperature is 70°C, filter after two days, wash with water and alcohol, and peptize at 80°C for 24 hours to obtain SDBS modified HTlc.

[0053] Step f: Take 0.2 g of the SDBS-modified HTlc sample obtained in step e, disperse it into the solution of step d in a three-necked flask, and heat it at 70° C. for 2 days to obtain imidacloprid / HTlc nano-hybrids. The sample was analyzed by ultraviolet spectrophotometry, and the content of imidacloprid was determined to be...

Embodiment 3

[0055] Step a: 8.91g of Zn(NO 3 ) 2 ·6H 2 O and 3.76gAl(NO 3 ) 3 9H 2 O was dissolved in 50ml of water.

[0056] Step b: Dissolve 1.44g of SOS in 50ml of deionized water.

[0057] Step c: Dissolve 3.6g of NaOH in 50ml of deionized water.

[0058] Step d: Dissolve 0.6 g of imidacloprid in 50 ml of toluene / ethanol (volume ratio 4:1) mixed solvent.

[0059] Step e: Add the solution of step a and the solution of step c to the solution of step b at the same time, continuously stir and control the pH to 9.5, the reaction temperature is 70°C, filter, wash with water and alcohol, and peptize at 80°C for 24 hours to obtain the modified SOS Sexual HTlc.

[0060] Step f: Take 0.2 g of the SOS-modified HTlc sample obtained in step e, disperse it into the solution of step d in a three-necked flask, and react at a constant temperature of 50° C. for 4 days to obtain imidacloprid / HTlc nano-hybrids. The content of imidacloprid was determined to be 50.1% by ultraviolet spectrophotometr...

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Abstract

The invention discloses an imidacloprid / type hydrotalcite nanometer hybrid, which is made from hydrotalcite-like compounds which is modified by surface active agent and imidacloprid which is inserted in the invention in intercalation form, wherein the content of imidacloprid is counted in quality percentage, which is 5-60% of the imidacloprid / type hydrotalcite nanometer hybrid whose chemical component general formula is [MII(1-x)MIIIx(OH)2](An)a(SAA)b(imidacloprid)cmH2 O. The imidacloprid / HTlc nanometer hybrid of the invention is made from HTlc which is modified by surface active agent (SAA) and the toluene / alcohol solvent of imidacloprid which are blended and reacted, which has the advantages of simple and feasible synthesized method, and large medicine-loading amount, and has evident slow release effect compared with raw material medicine of imidacloprid.

Description

technical field [0001] The invention relates to a nano-hybrid material and a preparation method thereof, in particular to an imidacloprid / hydrotalcite-like (HTlc) nano-hybrid and a preparation method thereof, belonging to the field of nano-material and pesticide preparation. Background technique [0002] Nano-hybrid materials are a new class of functional materials developed in the intersecting fields of materials, chemistry, and medicine in recent years. Due to their extremely high potential application value, they have attracted increasing attention from the international scientific and technological circles and industrial circles. [0003] Hydrotalcite-like compounds (Hydrotalcite-like Compounds, HTlc) is composed of divalent metal ions and trivalent metal ions with a hydrotalcite layered structure of hydroxide. HTlc has unique structural features: first, it has a layered crystal structure, and the layers have structural positive charges; second, there are exchangeable an...

Claims

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Application Information

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IPC IPC(8): A01N47/42A01N25/08
Inventor 侯万国仇德朋
Owner SHANDONG UNIV
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