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BiOCl/beta-FeOOH composite nanomaterial and preparation method thereof

A technology of composite nanomaterials and nanorods, applied in the field of BiOCl/β-FeOOH composite nanomaterials and its preparation, to achieve the effects of controllable product composition, less by-products, and simple process

Active Publication Date: 2016-08-10
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the use of β-FeOOH to regulate the photocatalytic performance of BiOCl.

Method used

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  • BiOCl/beta-FeOOH composite nanomaterial and preparation method thereof
  • BiOCl/beta-FeOOH composite nanomaterial and preparation method thereof
  • BiOCl/beta-FeOOH composite nanomaterial and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1), the FeCl of 27g 3 ·6H 2 O was dissolved in 100 mL of distilled water, and magnetically stirred for 2 minutes at room temperature to fully dissolve it to obtain solution a.

[0022] (2), weigh 48.5g of Bi(NO 3 ) 3 ·5H 2 O was added to the above solution a, and magnetic stirring was continued for 1 minute to obtain solution b.

[0023] (3) Add 0.35 g of glucose into solution b, adjust the pH of the solution to 3 with HCl solution, and obtain solution c.

[0024] (4) Put the solution c into the reactor to carry out the hydrothermal synthesis reaction, the reaction time is 24 hours, and the reaction temperature is 100°C.

[0025] (5) After the reaction, the product was taken out, washed, centrifuged and dried to obtain the target product. The drying temperature was 70° C. and the drying time was 4 hours.

[0026] figure 1 It is the XRD spectrum pattern of the product obtained in Example 1. Comparing and analyzing all the XRD diffraction peaks of the product wit...

Embodiment 2

[0031] (1), the FeCl of 135g 3 ·6H 2 O was dissolved in 100 mL of distilled water, and magnetically stirred for 3 minutes at room temperature to fully dissolve it to obtain solution a.

[0032] (2), weigh 48.5g of Bi(NO 3 ) 3 ·5H 2 O was added to the above solution a, and magnetic stirring was continued for 1 minute to obtain solution b.

[0033] (3) Add 0.55 g of glucose into solution b, adjust the pH of the solution to 4 with HCl solution, and obtain solution c.

[0034] (4) Put the solution c into the reactor to carry out the hydrothermal synthesis reaction, the reaction time is 48 hours, and the reaction temperature is 80°C.

[0035] (5) After the reaction, the product was taken out, washed, centrifuged and dried to obtain the target product. The drying temperature was 80° C. and the drying time was 2 hours.

Embodiment 3

[0037] (1), the FeCl of 27g 3 ·6H 2 O was dissolved in 100 mL of distilled water, and magnetically stirred at room temperature for 1 minute to fully dissolve to obtain solution a.

[0038] (2), weigh 727.6g of Bi(NO 3 ) 3 ·5H 2 O was added to the above solution a, and magnetic stirring was continued for 3 minutes to obtain solution b.

[0039] (3) Add 0.85 g of glucose into solution b, adjust the pH of the solution to 6 with HCl solution, and obtain solution c.

[0040] (4) Put the solution c into the reactor to carry out the hydrothermal synthesis reaction, the reaction time is 36 hours, and the reaction temperature is 90°C.

[0041] (5) After the reaction, the product was taken out, washed, centrifuged and dried to obtain the target product. The drying temperature was 60° C. and the drying time was 6 hours.

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Abstract

The invention relates to a BiOCl / beta-FeOOH composite nanomaterial and a preparation method thereof, and relates to the technical field of composite nanomaterials. The method comprises the following steps: dissolving FeCl3.6H2O in distilled water, sequentially adding Bi(NO3)3.5H2O and glucose, uniformly mixing, adjusting the pH value of the above obtained mixture to 3-6, and carrying out a hydrothermal synthesis reaction to obtain the BiOCl / beta-FeOOH composite nanomaterial. Low temperature hydrothermal synthesis is adopted, glucose biomacromolecules are used to control attached growth of beta-FeOOH nanorods on BiOCl nanosheets, and spindly BiOCl / beta-FeOOH nanorods are distributed on the sheet BiOCl in the structure of the BiOCl / beta-FeOOH composite nanomaterial, so the composite nanomaterial has the advantages of high specific surface area, and excellent photocatalytic and Fenton-like catalytic activity, and is hopeful to be used as an effective catalyst for removing various organic pollutants from sewage.

Description

technical field [0001] The invention relates to the technical field of composite nanomaterials, in particular to a BiOCl / β-FeOOH composite nanomaterial and a preparation method thereof. Background technique [0002] Iron oxyhydroxide (β-FeOOH) is a functional material with excellent performance, which can be used as pigment, catalyst, precursor of magnetic recording medium, magnetic coating and gas sensor, etc. It has low cost and high specific surface area, can be used as adsorbent and Fenton-like reagent, and has important application value in the fields of catalysis, medicine and biology. [0003] Bismuth oxychloride (BiOCl) is a transition metal sulfide. Nano-BiOCl has a large specific surface area and can be used as a photocatalyst to remove organic pollutants. However, the nano-BiOCl photocatalyst has a narrow response range to visible light, so its visible light catalytic effect is not obvious. Studies have shown that both β-FeOOH and BiOCl have a layered structure,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/128B01J35/10C02F1/30C02F1/72C02F101/38
CPCC02F1/30C02F1/725B01J27/128C02F2101/40C02F2305/10C02F2305/026B01J35/60B01J35/39
Inventor 韩成良谢畅张凌云邓崇海任亚军
Owner HEFEI UNIV
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