Preparation method of rare-earth modified attapulgite composite nanomaterial loaded with strontium titanate/stannic oxide/zinc sulfide

A technology of composite nanomaterials and attapulgite, which is applied in the field of photocatalyst materials to achieve excellent photocatalytic performance and broaden the spectral response range

Inactive Publication Date: 2017-08-22
ANHUI BOSHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Attapulgite-loaded nano-titanium dioxide photocatalyst materials are common in the market at present, rare earth-modified attapulgite-loaded strontium titanate / tin oxide / zinc sulfide composite nanomaterials are rarely seen as photocatalyst materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a rare earth modified attapulgite loaded strontium titanate / tin oxide / zinc sulfide composite nanomaterial, comprising the following steps:

[0019] (1) Weigh strontium acetate and tetrabutyl titanate according to an equimolar ratio, then dissolve strontium acetate in distilled water with 3 times the mass, and then add lanthanum chloride equivalent to 4% of the mass of strontium acetate to the resulting solution, Stir for 6 minutes at a water bath temperature of 40°C to obtain solution A; dissolve tetrabutyl titanate in 15 times the volume of isopropanol to obtain solution B; then dissolve solution A at a rate of 2 drops per second under magnetic stirring Add dropwise to solution B, continue to stir for 4 minutes after the dropwise addition, and leave to age for 24 hours to form gel A;

[0020] (2) Dissolve tin tetrachloride in distilled water to prepare a solution with a concentration of 0.5mol / L, then add europium sulfate equivalent to 3% tin te...

Embodiment 2

[0027]A preparation method of a rare earth modified attapulgite loaded strontium titanate / tin oxide / zinc sulfide composite nanomaterial, comprising the following steps:

[0028] (1) Weigh strontium acetate and tetrabutyl titanate according to an equimolar ratio, then dissolve strontium acetate in distilled water with 3 times the mass, and then add lanthanum chloride equivalent to 6% of the mass of strontium acetate to the resulting solution, Stir for 4 minutes at a water bath temperature of 45°C to obtain solution A; dissolve tetrabutyl titanate in 18 times the volume of isopropanol to obtain solution B; then dissolve solution A at a rate of 2 drops per second under magnetic stirring Add dropwise to solution B, continue to stir for 6 minutes after the dropwise addition, and leave to age for 36 hours to form gel A;

[0029] (2) Dissolve tin tetrachloride in distilled water to prepare a solution with a concentration of 0.5mol / L, then add europium sulfate equivalent to 4% tin tet...

Embodiment 3

[0036] A preparation method of a rare earth modified attapulgite loaded strontium titanate / tin oxide / zinc sulfide composite nanomaterial, comprising the following steps:

[0037] (1) Weigh strontium acetate and tetrabutyl titanate according to an equimolar ratio, then dissolve strontium acetate in distilled water with 4 times the mass, and then add lanthanum chloride equivalent to 7% of the mass of strontium acetate to the resulting solution, Stir for 3 minutes at a water bath temperature of 50°C to obtain solution A; dissolve tetrabutyl titanate in 20 times the volume of isopropanol to obtain solution B; then dissolve solution A at a rate of 3 drops per second under magnetic stirring Add dropwise to solution B, continue to stir for 7 minutes after the dropwise addition, and leave to age for 48 hours to form gel A;

[0038] (2) Dissolve tin tetrachloride in distilled water to prepare a solution with a concentration of 0.5 mol / L, then add europium sulfate equivalent to 5% tin t...

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PUM

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Abstract

The invention discloses a preparation method of a rare-earth modified attapulgite composite nanomaterial loaded with strontium titanate / stannic oxide / zinc sulfide. The preparation method comprises the following steps: adopting tin tetrachloride, strontium acetate and tetrabutyl titanate as raw materials, adding lanthanum chloride and europium sulfate as a rare-earth modifier, correspondingly obtaining rare-earth lanthanum modified gel A and rare-earth europium modified gel B by adopting a sol-gel method, then adopting zinc acetate, thioacetamide and yttrium nitrate as raw materials, adopting a hydro-thermal synthesis method to prepare yttrium-doped nanometer zinc sulfide, then mixing the gel A, the gel B, the purified attapulgite and the yttrium-doped nanometer zinc sulfide, drying, and calcining to obtain three rare-earth elements of lanthanum, europium and yttrium modified attapulgite composite nanomaterial loaded with strontium titanate / stannic oxide / zinc sulfide. The spectral response range of the attapulgite composite nanomaterial loaded with strontium titanate / stannic oxide / zinc sulfide is broadened, and the excellent photocatalytic performance is shown under the visible light and sunlight.

Description

technical field [0001] The invention relates to a preparation method of rare earth modified attapulgite loaded strontium titanate / tin oxide / zinc sulfide composite nanometer material, which belongs to the field of photocatalyst materials. Background technique [0002] Attapulgite is a kind of water-rich magnesium aluminum silicate clay mineral with layer chain structure. Due to the special structure of attapulgite, it has many excellent characteristics, such as good adsorption capacity, unique dispersibility, resistance High temperature, salt-alkali resistance, high plasticity and cohesive force, the mineral itself is light, brittle, strong water absorption, large specific area, small shrinkage after drying, no significant cracks, soaked in water, collapsed, suspension encountered The electrode does not flocculate or precipitate, so attapulgite has a wide range of applications and can be used as an adsorbent, catalyst, gelling agent, filler, suspending agent, thickener, decol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J23/14B01J21/16
CPCB01J21/16B01J23/002B01J23/14B01J27/04B01J2523/00B01J35/39B01J2523/24B01J2523/36B01J2523/3706B01J2523/3743B01J2523/43B01J2523/47
Inventor 张志军
Owner ANHUI BOSHUO TECH
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