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Liquid-phase sugar nano tellurium and preparation method thereof as well as method for storing nano tellurium in liquid phase

A nano and liquid-phase technology, applied in the field of preparation and preservation of nano-materials, can solve the unsolved problems of liquid-phase elemental tellurium, elemental tellurium cannot be quantitatively controlled, and biological activity research has not yet been carried out in large quantities, achieving convenient control and simple preparation methods easy effect

Inactive Publication Date: 2009-06-03
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the general hydrothermal method only relates to the preparation method of solid elemental tellurium, but does not solve the liquid phase elemental tellurium, especially the preservation method of nanometer tellurium state elemental tellurium in the liquid phase, thereby limiting the use mode of elemental tellurium, and Te( The content of IV) can be controlled in the liquid phase, but the content of elemental tellurium cannot be quantitatively controlled after drying
At present, the research on the properties of nano-tellurium is mainly based on its optical properties, and the research on biological activity has not yet been extensively carried out.

Method used

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  • Liquid-phase sugar nano tellurium and preparation method thereof as well as method for storing nano tellurium in liquid phase
  • Liquid-phase sugar nano tellurium and preparation method thereof as well as method for storing nano tellurium in liquid phase
  • Liquid-phase sugar nano tellurium and preparation method thereof as well as method for storing nano tellurium in liquid phase

Examples

Experimental program
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Effect test

Embodiment 1

[0036] At normal temperature and pressure, take 1mL (the amount added can be adjusted in proportion according to actual needs) Na with Te of 4.62mmol / L 2 TeO 3 Aqueous solution (i.e. composed of solid Na 2 TeO 3 Be prepared as an aqueous solution with a concentration of 4.62mmol / L), add sucrose and ascorbic acid (Vc) in the aqueous solution under stirring, and adjust the volume to 50mL with double distilled water (depending on the actual production requirements), the final reaction system obtained is (5% sucrose+0.01mol / L Vc+93.2μmol / L Na 2 TeO 3 ). Heating and reacting at 60°C for 6 hours (the length of time can control the growth of nano-tellurium, which can be adjusted according to the situation), the product is obtained, and the volume of the final sample can be prepared into different volumes according to different needs.

[0037] The mass fraction of the above-mentioned sucrose is based on the mass fraction of the final reaction solution, and 5% ie 5g of sucrose nee...

Embodiment 2

[0039] At normal temperature and pressure, take 1mL (the amount added can be adjusted in proportion according to actual needs) Na with Te of 4.62mmol / L 2TeO 3 Aqueous solution (i.e. composed of solid Na 2 TeO 3 Be prepared into the aqueous solution that concentration is 4.62mmol / L), in the aqueous solution of the glucose that adds under stirring and ascorbic acid, use secondary distilled water to adjust volume to 50mL (depending on demand in actual production), the reaction system that finally obtains is (mass Fraction 2% glucose+0.01mol / L Vc+93.2μmol / L Na 2 TeO 3 ). Heating at 60° C. for 6 hours (the length of time can control the growth of nano-tellurium, which can be adjusted according to the situation), the product is obtained, and the volume of the final sample can be prepared into different volumes according to different needs.

Embodiment 3

[0041] At normal temperature and pressure, take 1mL (the amount added can be adjusted in proportion according to actual needs) Na with Te of 4.62mmol / L 2 TeO 3 Aqueous solution (i.e. composed of solid Na 2 TeO 3 be prepared as an aqueous solution with a concentration of 4.62mmol / L), add glucose and ascorbic acid aqueous solution under stirring, and adjust the volume to 50mL with double distilled water (depending on the actual production requirements), the final reaction system is (mass fraction 1 %glucose+0.005mol / L Vc+93.2μmol / L Na 2 TeO 3 ). Heating at 60° C. for 6 hours (the length of time can control the growth of nano-tellurium, which can be adjusted according to the situation), the product is obtained, and the volume of the final sample can be prepared into different volumes according to different needs.

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Abstract

The invention discloses a liquid-phase sugar nano tellurium and a preparation method thereof. The liquid-phase sugar nano tellurium is a compound of sugar and nano tellurium obtained by reacting tellurite aqueous solution with the sugar by heating in the present of a reducing agent. The method comprises the following steps: adding the sugar to the tellurite solution, adding the reducing agent which is 50-100 times of the molar weight of the tellurite, and heating for reacting to obtain a product. The method is simple and feasible, and is applicable to industrialized production. The obtained product is more stable at normal temperature, thus realizing the storage of a nano tellurium elementary substance in a liquid phase, greatly widening the application range of the existing solid nano tellurium and reducing the use restriction thereof.

Description

technical field [0001] The invention relates to the field of preparation and preservation of nanometer materials, in particular to a liquid-phase sugar nano-tellurium, a preparation method thereof and a method for preserving nano-tellurium in a liquid phase. Background technique [0002] Tellurium belongs to the chalcogen elements of group VI and is a dispersed rare element with a content of about 0.01mg / m in the earth's crust 3 (0.5~0.005mg / m 3 ) occupies the 75th place in the earth's crustal element content. Tellurium can often exist in soil, water and plants, and its content is higher in fat and fatty foods in animals. There is no separate tellurium ore in nature, and tellurium often coexists with sulfur. The main forms of tellurium are elemental tellurium, inorganic tellurium and organic tellurium. Tellurium and its compounds are often considered to be toxic substances. The toxicity of elemental tellurium is less than that of tellurium oxides, and the toxicity of tel...

Claims

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Application Information

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IPC IPC(8): C01B19/02
Inventor 郑文杰郑若谷白燕黄莉莉
Owner JINAN UNIVERSITY
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