a bi 4 moo 9 Preparation method of amphibole composite photocatalyst

A technology of amphibole and composite light, which is applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, chemical instrument and method, etc. It can solve the problems of poor natural sedimentation performance and achieve high solubility , easy to wash, low price effect

Active Publication Date: 2022-05-31
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to overcome the above problems, the present invention provides a Bi 4 MoO 9 / the preparation method of amphibole composite photocatalyst, by NH 4 HCO 3 As an auxiliary agent, the normal pressure reaction will Bi 4 MoO 9 Composite with amphibole to improve its poor natural settlement performance and improve its preparation process

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  • a bi <sub>4</sub> moo <sub>9</sub> Preparation method of amphibole composite photocatalyst

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Experimental program
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Effect test

Embodiment 1

[0025] (1) 4.85g Bi (NO 3 ) 3 ·5H 2 Mix O and 140mL of glycerol, stir and dissolve at room temperature with ultrasonic (ultrasonic power 60W) for 20min, and continue to stir in a water bath at 20°C for use, after obtaining mixed clear solution A;

[0026] (2) Disperse 9.7g of magnesium amphibole (particle size 2000 mesh) ultrasonically (ultrasonic power 100W) in 97mL of deionized water to obtain solution B;

[0027] (3) 0.485g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 136 mL of deionized water, and stood at room temperature for use to obtain mixed solution C;

[0028] (4) 3.56g NH 4 HCO 3 Dissolve in 72 mL of deionized water, and stand at room temperature for use to obtain mixed solution D;

[0029] (5) adding the solution B obtained in step (2) into the mixed clear solution A obtained in step (1), and stirring in a water bath at 90° C. for 10 min to obtain mixed solution E;

[0030] (6) mixing solution C prepared in step (3) and solution D prepared in step (4) t...

Embodiment 2

[0033] (1) 5.82g Bi (NO 3 ) 3 ·5H 2 Mix O and 174mL of glycerol, stir and dissolve at room temperature with ultrasonic (ultrasonic power 60W) for 40min, and continue to stir in a water bath at 30°C for use, after obtaining mixed clear solution A;

[0034](2) Disperse 8.31 g of magnesia amphibole (particle size 6000 mesh) ultrasonically (ultrasonic power 100 W) in 124 mL of deionized water to obtain solution B;

[0035] (3) 0.53g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 159 mL of deionized water, and stood at room temperature for use to obtain mixed solution C;

[0036] (4) 4.24g NH 4 HCO 3 Dissolve in 95 mL of deionized water, let stand at room temperature for use, and obtain mixed solution D;

[0037] (5) Add the solution B obtained in step (2) to the mixed clear solution A obtained in step (1), and stir in a water bath at 90°C for 30 min to obtain mixed solution E

[0038] (6) mixing solution C prepared in step (3) and solution D prepared in step (4) to obtain...

Embodiment 3

[0041] (1) 6.79g Bi (NO 3 ) 3 ·5H 2 Mix O and 190 mL of glycerol, and at room temperature, ultrasonically (ultrasonic power 100W) was stirred and dissolved for 30 min, and at 30 ° C, the water bath continued to stir for use, and after obtaining the mixed clear solution A;

[0042] (2) Disperse 13.58 g of magnesia amphibole (particle size 2000 mesh) ultrasonically (ultrasonic power 60 W) in 136 mL of deionized water to obtain solution B;

[0043] (3) 0.645g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 182 mL of deionized water, and stood at room temperature for use to obtain mixed solution C;

[0044] (4) 4.5g NH 4 HCO 3 Dissolve in 112 mL of deionized water, let stand at room temperature for use, and obtain mixed solution D;

[0045] (5) adding the solution B obtained in step (2) into the mixed clear solution A obtained in step (1), and stirring in a water bath at 90° C. for 30 min to obtain mixed solution E;

[0046] (6) mixing solution C prepared in step (3) and s...

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Abstract

The invention provides a Bi 4 MoO 9 / the preparation method of amphibole composite photocatalyst, comprises: (1) Bi(NO 3 ) 3 ·5H 2 O was mixed with glycerol to obtain solution A; (2) ultrasonically dispersed amphibole in deionized water to obtain solution B; (3) (NH 4 ) 6 Mo 7 o 24 4H 2 O was dissolved in deionized water to obtain solution C; (4) NH 4 HCO 3 Dissolve in deionized water to obtain solution D; (5) slowly add solution B to solution A to obtain solution E; (6) mix solution C and solution D to obtain solution F; (7) add solution F to solution E , after the water bath reaction, the reaction solution was post-treated to obtain Bi 4 MoO 9 / amphibole composite photocatalyst. Bi prepared by the inventive method 4 MoO 9 / amphibole composite photocatalyst, amphibole as Bi 4 MoO 9 carrier material, significantly improving the Bi 4 MoO 9 Natural sedimentation rate and high yield (more than 90%), adopt the Bi prepared by the inventive method 4 MoO 9 / Amphibole composite photocatalyst has excellent visible light catalytic performance.

Description

(1) Technical field [0001] The present invention relates to a Bi 4 MoO 9 The preparation method of / magnesium amphibole composite photocatalyst belongs to the technical field of development and preparation of non-metallic mineral composite materials. (2) Background technology [0002] Semiconductor Bi 4 MoO 9 The valence band is formed by the hybridization of the d orbital of the metal element and the 2p orbital of the O element. Compared with the binary oxide whose valence band is mainly composed of the 2p orbital of the O element, Bi 4 MoO 9 The position of the valence band is higher, the generated holes have higher potential energy, and have relatively strong photocatalytic oxidation ability. [0003] However, the current synthesis of Bi 4 MoO 9 Most of the hydrothermal methods are used, which requires strong acid and strong alkaline raw materials, and the preparation of powdered Bi 4 MoO 9 The particles are so small that it is difficult to recover and reuse them...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/31C02F1/30C02F101/20C02F101/30C02F101/38C02F103/34
CPCB01J35/004B01J23/31C02F1/30C02F2101/38C02F2101/30C02F2103/343C02F2101/20C02F2305/10Y02W10/37
Inventor 孙青马俊凯盛嘉伟张俭
Owner ZHEJIANG UNIV OF TECH
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