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ZnSn(OH)<6> powder, and preparation method and application thereof

A powder and reaction technology, which is applied in chemical instruments and methods, chemical/physical processes, light water/sewage treatment, etc., can solve the problems that have not been reported, have no patents and literature reports, and achieve excellent photocatalytic performance and reaction The effect of short time and simple operation

Active Publication Date: 2017-04-19
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Currently, one-step synthesis of ZnSn(OH) with excellent photocatalytic properties by microwave hydrothermal method 6 The work of powder has not been reported yet, and there are no patents and literature reports

Method used

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  • ZnSn(OH)&lt;6&gt; powder, and preparation method and application thereof
  • ZnSn(OH)&lt;6&gt; powder, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Add Zn(NO 3 ) 2 ·6H 2 O is dissolved in ethylene glycol solution to give Zn(NO 3 ) 2 A Zn solution with a concentration of 0.002mol / L;

[0030] Step 2: Add SnCl 4 ·5H 2 O dissolved in deionized water to give SnCl 4 Sn solution with a concentration of 0.001mol / L;

[0031] Step 3: Magnetically stir 20mL of Zn solution and 20mL of Sn solution until uniform to obtain a mixed solution, wherein the molar ratio of Zn to Sn is 2:1;

[0032] Step 4: Add 15 mL of hydrazine hydrate solution (concentration: 0.6 mol / L) to 40 mL of the mixed solution to adjust the pH value of the mixed solution to obtain a precursor solution;

[0033] Step 5: Add the precursor solution into the microwave hydrothermal reaction kettle, place the microwave hydrothermal reaction kettle in the microwave-assisted hydrothermal synthesizer, set the power to 300W, and conduct a microwave hydrothermal reaction at 180°C for 60 minutes;

[0034] Step 6: After the reaction is finished, wash the p...

Embodiment 2

[0036] Step 1: Add Zn(NO 3 ) 2 ·6H 2 O is dissolved in ethylene glycol solution to give Zn(NO 3 ) 2 A Zn solution with a concentration of 0.001mol / L;

[0037] Step 2: Add SnCl 4 ·5H 2 O dissolved in deionized water to give SnCl 4 Sn solution with a concentration of 0.0005mol / L;

[0038] Step 3: Magnetically stir 15mL of Zn solution and 15mL of Sn solution until uniform to obtain a mixed solution, wherein the molar ratio of Zn to Sn is 2:1;

[0039] Step 4: Add 13 mL of hydrazine hydrate solution (concentration: 0.8 mol / L) to 30 mL of the mixed solution to adjust the pH value of the mixed solution to obtain a precursor solution;

[0040] Step 5: Add the precursor solution into the microwave hydrothermal reaction kettle, place the microwave hydrothermal reaction kettle in the microwave-assisted hydrothermal synthesizer, set the power to 280W, and conduct a microwave hydrothermal reaction at 170°C for 70 minutes;

[0041] Step 6: After the reaction is finished, wash the ...

Embodiment 3

[0043] Step 1: Add Zn(NO 3 ) 2 ·6H 2 O is dissolved in ethylene glycol solution to give Zn(NO 3 ) 2 A Zn solution with a concentration of 0.003mol / L;

[0044] Step 2: Add SnCl 4 ·5H 2 O dissolved in deionized water to give SnCl 4 Sn solution with a concentration of 0.0015mol / L;

[0045] Step 3: Magnetically stir 25mL of Zn solution and 25mL of Sn solution until uniform to obtain a mixed solution, wherein the molar ratio of Zn to Sn is 2:1;

[0046]Step 4: Add 17 mL of hydrazine hydrate solution (concentration: 0.4 mol / L) to 50 mL of the mixed solution to adjust the pH value of the mixed solution to obtain a precursor solution;

[0047] Step 5: Add the precursor solution into the microwave hydrothermal reaction kettle, place the microwave hydrothermal reaction kettle in the microwave-assisted hydrothermal synthesizer, set the power to 290W, and conduct a microwave hydrothermal reaction at 190°C for 50 minutes;

[0048] Step 6: After the reaction is over, wash the produ...

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Abstract

The invention discloses a ZnSn(OH)<6> powder, and a preparation method and application thereof. According to the preparation method, Zn(NO<3>)<2>.6H<2>O is dissolved into a glycol solution; SnCl<4>.5H<2>O is dissolved into an aqueous solution; the two solutions are mixed to obtain a precursor solution; the pH value of the precursor solution is adjusted with hydrazine hydrate; and the cubic phase ZnSn(OH)<6> powder of a space group structure being Pn-3m. The preparation method is simple in procedure and easy to operate, the reaction time is short, and the reaction condition is mild. After the synthesized ZnSn(OH)<6> powder is irradiated by ultraviolet light for 30 min, the degradation rate of the ZnSn(OH)<6> powder to Rhodamine B (RhB) reaches up to 87%. The ZnSn(OH)<6> powder has good application prospects.

Description

technical field [0001] The invention belongs to the field of functional materials, in particular to a ZnSn(OH) with excellent photocatalytic performance 6 Powder and its preparation method and application. Background technique [0002] The increasingly serious energy crisis and environmental pollution have endangered the survival of human society. The preparation of high-efficiency photocatalytic, photoelectric and other functional materials has become the most critical and core technology and means to solve and cope with this phenomenon. Nowadays, wastewater pollution has become one of the main sources of water pollution in my country, so new green and efficient photocatalysts have gradually become a research hotspot. [0003] Zinc Hydroxystannate (ZnSn(OH) 6 ) is a typical hydroxyl compound of perovskite structure, metal Sn / Zn atoms coordinate with oxygen atoms to form Sn(OH) 6 Octahedral structure and Zn(OH) 6 The octahedral structure, the oxygen atoms shared by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/00B01J23/14C02F1/30C02F1/32C02F101/30
CPCB01J23/14C01G19/00C01P2002/72C02F1/30C02F1/32C02F2101/30C02F2305/10
Inventor 谈国强刘婷赵程程任慧君夏傲
Owner SHAANXI UNIV OF SCI & TECH
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