Preparation method of zinc silicate nanometer material

A nanomaterial, zinc silicate technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve problems such as unfavorable industrial production, increase preparation cost, etc., and achieve low reaction temperature, easy control of product composition, and size distribution. uniform effect

Inactive Publication Date: 2013-03-20
SHIJIAZHUANG UNIVERSITY
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Problems solved by technology

At present, the research on the preparation of zinc silicate nanomaterials obtained by hydrothermal method is still very limited at home and abroad, and most of them need to introduce surfactants (X. Yu, Y. H. Wang, J. Nanosci. Nanotechno. 2010, 10, 1-4 ; J. X. Wan, Z. H. Wang, X. Y. Chen, L. Mu, W. C. Yu, Y. T. Qian, J. Lumin. 2006, 121, 32-38), organic template

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  • Preparation method of zinc silicate nanometer material
  • Preparation method of zinc silicate nanometer material
  • Preparation method of zinc silicate nanometer material

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Example Embodiment

[0025] Example 1

[0026] A preparation method of zinc silicate nano material, which uses amorphous nano silica and soluble zinc salt as raw materials, and specifically includes the following steps:

[0027] Step A. At room temperature, weigh 2mmol of amorphous nano SiO with a diameter of about 200nm 2 Add to 10mL 0.4mol / L Zn(NO 3 ) 2 ·6H 2 In O solution, stir for 10 min to form a suspension aqueous solution, then adjust the pH value of the reaction system to 5 with 1 mol / L NaOH solution, and continue to stir for 30 min;

[0028] Step B: Transfer the suspended aqueous solution in Step A into a 25 mL hydrothermal reaction kettle, place it in a thermostat after sealing, and react hydrothermally at 220°C for 24 hours;

[0029] Step C. After the reaction is completed, the reaction system is cooled to room temperature, the reaction product is centrifuged, and then the reaction product is washed 5 times with deionized water and absolute ethanol to remove impurity ions, and then the washed pr...

Example Embodiment

[0033] Example 2

[0034] Step A. At room temperature, weigh 2mmol of amorphous nano SiO with a diameter of about 200nm 2 Add to 10 mL 0.4 mol / L Zn(NO 3 ) 2 ·6H 2 In the O solution, stir for 10 minutes to form a suspended aqueous solution, then adjust the pH value of the reaction system to 9 with 1 mol / L NaOH solution, and continue to stir for 30 minutes;

[0035] Step B: Transfer the suspended aqueous solution in Step A into a 25 mL hydrothermal reaction kettle, place it in a thermostat after sealing, and react hydrothermally at 220°C for 24 hours;

[0036] Step C. After the reaction is completed, the reaction system is cooled to room temperature, the reaction product is centrifuged, and then the reaction product is washed 5 times with deionized water and absolute ethanol to remove impurity ions, and then the washed product is dried in vacuum Vacuum drying at 60℃ for 4h in the box to obtain Zn 2 SiO 4 Nano stave.

[0037] Zn prepared in this example 2 SiO 4 The XRD spectrum of the na...

Example Embodiment

[0038] Example 3

[0039] Step A. At room temperature, weigh out 2mmol of amorphous nano SiO with a diameter of about 200nm 2 Add to 10mL 0.4 mol / L Zn(NO 3 ) 2 ·6H 2 In O solution, stir for 20 min to form a suspension aqueous solution, then use 2mol / L NaOH solution to adjust the pH value of the reaction system to 13, and continue to stir for 30 min;

[0040] Step B: Transfer the suspended aqueous solution in Step A into a 25 mL hydrothermal reaction kettle, place it in a thermostat after sealing, and react hydrothermally at 220°C for 24 hours;

[0041] Step C. After the reaction is completed, the reaction system is cooled to room temperature, the reaction product is centrifuged, and then the reaction product is washed with deionized water and absolute ethanol several times to remove impurity ions, and then the washed product is placed in a vacuum drying oven Vacuum drying at 60℃ for 4h to obtain Zn 2 SiO 4 Submicron rods.

[0042] Zn prepared in this example 2 SiO 4 The XRD spectrum o...

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Abstract

The invention discloses a preparation method of a zinc silicate nanometer material. Amorphous nanometer silicon dioxide and soluble zinc salt are used as raw materials. The preparation method comprises the following steps: (A) weighing the amorphous nanometer silicon dioxide and the soluble zinc salt according to a stoichiometric ratio so as to prepare a suspended aqueous solution, regulating pH value of the suspended aqueous solution to 5-13, and stirring the suspended aqueous solution; (B) transferring the suspended aqueous solution in the step A into a hydrothermal reaction kettle and reacting the suspended aqueous solution at 160-230 DEG C for 2-24 hours; and (C) cooling a reaction system after the reaction is finished, and washing and drying a reaction product so as to obtain the zinc silicate nanometer material. The preparation method disclosed by the invention has the advantages of mild reaction, good reproducibility, simplicity in operation and the like; and the prepared Zn2SiO4 can be widely applied to the fields of fluorescent materials, catalytic degradation, adsorbing materials and so on.

Description

technical field [0001] The invention relates to the field of synthesis of inorganic functional nanomaterials, in particular to a preparation method of zinc silicate nanomaterials, which adopts a hydrothermal method to form nanomaterials in one step, and has a simple process and a short process. Background technique [0002] Zinc silicate (Zn 2 SiO 4 ) is an important inorganic material, which is widely used in fluorescent materials, adsorbents, glass additives, coatings and other fields. In particular, as a luminescent matrix material, zinc silicate has the advantages of strong environmental adaptability, good chemical stability, strong moisture resistance, easy preparation, and low price, and has attracted much attention in the research of luminescent materials. [0003] At present, the synthesis method of zinc silicate material is mainly a high-temperature solid-state reaction method, that is, ZnO and SiO 2 It is obtained by roasting in a high temperature enviro...

Claims

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Application Information

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IPC IPC(8): C01B33/20B82Y30/00
Inventor 张绍岩次立杰陆敏杨建超孙凤王淑玲
Owner SHIJIAZHUANG UNIVERSITY
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