Zero-dimensional black phosphorus quantum dot/one-dimensional tubular carbon nitride composite photocatalyst and preparation method thereof

A zero-dimensional black phosphorus and carbon nitride technology, used in physical/chemical process catalysts, chemical instruments and methods, special compound water treatment, etc., can solve the limitations of wide application of photocatalytic technology, insufficient photocatalytic activity, poor stability, etc. problem, to achieve the effect of strong separation and migration ability of photogenerated carriers, high use value and application prospects, and good stability

Active Publication Date: 2020-02-28
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the existing composite materials formed by zero-dimensional black phosphorus quantum dots and carbon nitride still have problems such as insufficient photocatalytic activity and poor stability, which greatly limits the wide application of photocatalytic technology.

Method used

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  • Zero-dimensional black phosphorus quantum dot/one-dimensional tubular carbon nitride composite photocatalyst and preparation method thereof
  • Zero-dimensional black phosphorus quantum dot/one-dimensional tubular carbon nitride composite photocatalyst and preparation method thereof
  • Zero-dimensional black phosphorus quantum dot/one-dimensional tubular carbon nitride composite photocatalyst and preparation method thereof

Examples

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Embodiment 1

[0037] A zero-dimensional black phosphorous quantum dot / one-dimensional tubular carbon nitride composite photocatalyst includes one-dimensional tubular carbon nitride, and the one-dimensional tubular carbon nitride is modified with zero-dimensional black phosphorous quantum dots.

[0038] A method for preparing the zero-dimensional black phosphorous quantum dots / one-dimensional tubular carbon nitride composite photocatalyst (BPTCN-10) of the above-mentioned embodiment includes the following steps:

[0039] (1) Preparation of one-dimensional tubular carbon nitride:

[0040] (1.1) Take 3g of urea and 1g of melamine, grind, dissolve in 50mL of deionized water, sonicate for 2.5h, and stir at a constant speed of 300r / min for 10h to obtain a uniform mixed solution.

[0041] (1.2) Transfer the mixed solution obtained in step (1.1) to a 100 mL autoclave, keep it at 180°C for 20 hours, rinse with water and ethanol 3 times after natural cooling, filter, and dry at 60°C for 8 hours to obtain the ...

Embodiment 2

[0049] A preparation method of zero-dimensional black phosphorus quantum dots / one-dimensional tubular carbon nitride composite photocatalyst is basically the same as the preparation method in Example 1, except that the zero-dimensional black phosphorus quantum used in the preparation method of Example 2 The volume of the spot solution is 8 mL.

[0050] The zero-dimensional black phosphorous quantum dots / one-dimensional tubular carbon nitride composite photocatalyst prepared in Example 2 is denoted as BPTCN-8.

Embodiment 3

[0052] A preparation method of zero-dimensional black phosphorus quantum dots / one-dimensional tubular carbon nitride composite photocatalyst is basically the same as the preparation method in Example 1, except that: the zero-dimensional black phosphorus quantum used in the preparation method of Example 3 The volume of the spot solution is 12 mL.

[0053] The zero-dimensional black phosphorous quantum dots / one-dimensional tubular carbon nitride composite photocatalyst prepared in Example 3 is denoted as BPTCN-12.

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Abstract

The invention discloses a zero-dimensional black phosphorus quantum dot/one-dimensional tubular carbon nitride composite photocatalyst and a preparation method thereof. The preparation method comprises the following steps: mixing one-dimensional tubular carbon nitride with a zero-dimensional black phosphorus quantum dot solution, and performing vacuum drying to obtain the zero-dimensional black phosphorus quantum dot/one-dimensional tubular carbon nitride composite photocatalyst. The composite photocatalyst disclosed by the invention has the advantages of strong light absorption capability, strong photo-generated carrier separation and migration capability, high photocatalytic activity, good stability and the like, can be widely used for catalytic reduction of heavy metal pollutants and degradation of organic pollutants, can effectively remove heavy metal pollutants and organic pollutants from mediums, and has very high use value and a promising application prospect. The preparation method disclosed by the invention has the advantages of simple process, convenience in operation, low cost, no secondary pollution to the environment and the like, is suitable for large-scale preparation and is beneficial to industrial application.

Description

Technical field [0001] The invention belongs to the field of visible light catalysis, and relates to a zero-dimensional black phosphorus quantum dot one-dimensional tubular carbon nitride composite photocatalyst and a preparation method thereof. Background technique [0002] Compared with non-renewable fuels such as petroleum and coal, solar energy is a steady stream of clean energy and has always been an important object of green clean energy research. In the past few decades, photocatalytic technology with higher economic benefits and environmental friendliness has become a research hotspot, and has been well applied in wastewater treatment. Photocatalysis technology is a technology that can convert solar energy into chemical energy. It is an advanced oxidation technology that uses photocatalysts that can participate in chemical reactions but can keep itself unchanged under light conditions to catalyze chemical reactions efficiently. The photocatalytic reaction has the potenti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/14B01J27/24B01J35/00B01J35/10C02F1/70C02F1/30C02F101/22C02F101/30
CPCB01J27/14B01J27/24B01J35/004B01J35/10C02F1/30C02F1/70C02F2101/22C02F2101/30C02F2305/10
Inventor 曾光明汪文军张辰周成赟杨洋邵彬彬黄丹莲雷蕾刘钰鑫熊炜平符玉葵王紫薇周银
Owner HUNAN UNIV
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