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Bismuth sulfide-cuprous sulfide heterojunction composite material with sea urchin-shaped structure, preparation method and application thereof

A composite material, cuprous sulfide technology, used in medical preparations containing active ingredients, wave energy or particle radiation treatment materials, drug combinations, etc. The effect of excellent photothermal performance and huge potential application value

Active Publication Date: 2017-07-07
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, the research on sulfide inorganic nanomaterials has also attracted more and more attention. Among them, copper sulfide has been proved to have good photothermal conversion performance, such as Cu with a diameter of about 15nm synthesized by Tian et al. 9 S 5 Nanocrystalline at power 0.51W / cm 2 The 980nm laser irradiated the material for 7 minutes, and the temperature of the material reached 13°C, and the mass concentration of the solution used was 40 μg / mL. It can be seen that copper sulfide has potential application value in the vicinity of photothermal therapy, but it is difficult to determine the tumor cell in the photothermal agent alone. The exact position in the body brings difficulty to tumor treatment

Method used

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  • Bismuth sulfide-cuprous sulfide heterojunction composite material with sea urchin-shaped structure, preparation method and application thereof
  • Bismuth sulfide-cuprous sulfide heterojunction composite material with sea urchin-shaped structure, preparation method and application thereof
  • Bismuth sulfide-cuprous sulfide heterojunction composite material with sea urchin-shaped structure, preparation method and application thereof

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Embodiment 1

[0050] A method for preparing a bismuth sulfide-cuprous sulfide heterojunction composite material with a sea urchin structure, comprising the following steps:

[0051] S1: Add 0.1moL copper nitrate, 0.1moL bismuth nitrate and 0.2moL and 0.3moL sodium dimethyldithiocarbamate into pure water respectively, stir well, let stand for 24h, filter and dry to obtain dimethyldithiocarbamate copper carbamate and bismuth dimethyldithiocarbamate;

[0052] S2: In an appropriate amount of organic solvent ethylene glycol, add bismuth dimethyl dithiocarbamate (Bi(DMDC) with a mass ratio of 5:5 3 ) and copper dimethyldithiocarbamate (Cu(DMDC) 2 ), ultrasonically stirred for 10-20min, and mixed evenly to obtain a precursor reaction solution;

[0053] S3: The precursor reaction solution is subjected to a two-stage microwave heating constant temperature reaction, thereby obtaining a bismuth sulfide-cuprous sulfide heterojunction composite material, specifically:

[0054] S3-1: Under the ultraso...

Embodiment 2-3

[0057] Embodiment 2-3: the investigation of raw material consumption ratio

[0058] In addition to using bismuth dimethyl dithiocarbamate (Bi(DMDC) in different molar ratios shown in the following table 1 in step S1 3 ) and copper dimethyldithiocarbamate (Cu(DMDC) 2 ), other operations are all identical to embodiment 1, thereby carried out embodiment 2-3, used raw material consumption ratio and composite material nomenclature see table 1 below.

[0059] Table 1. Composite materials prepared under different raw material dosage ratios

[0060]

Embodiment 4-6

[0061] Embodiment 4-6: the investigation of ultrasonic stirring power

[0062] Embodiment 4-6: Except using the ultrasonic stirring power shown in table 2 below in step S3-2 and S3-3, other operations are all the same as embodiment 1, thereby carried out embodiment 4-6, the ultrasonic stirring power used The stirring power and composite material nomenclature are shown in Table 2 below.

[0063] Table 2. Composite materials prepared under different ultrasonic stirring power

[0064]

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Abstract

The invention discloses a bismuth sulfide-cuprous sulfide heterojunction composite material with a sea urchin-shaped structure, a preparation method and an application thereof. The method comprises the following steps: firstly, adding copper compound, bismuth compound and dimethyl carbamodithioic acid into high-purity water, fully stirring, performing suction filtration and drying, thereby acquiring a sulfur copper source precursor and a sulfur bismuth source precursor; adding the sulfur copper source precursor and the sulfur bismuth source precursor into an organic solvent, fully stirring and uniformly mixing, thereby acquiring a precursor reaction solution; performing two-segment type microwave heating constant temperature reaction on the precursor reaction solution, thereby acquiring the bismuth sulfide-cuprous sulfide heterojunction composite material with the sea urchin-shaped structure. According to the preparation method, the process is optimized, so that the bismuth sulfide-cuprous sulfide heterojunction composite material with the sea urchin-shaped structure, excellent CT imaging performance and photo-thermal effect can be acquired. The bismuth sulfide-cuprous sulfide heterojunction composite material with the sea urchin-shaped structure has an excellent application prospect in the field of CT imaging and photo-thermal treatment.

Description

technical field [0001] The invention provides a heterojunction composite material of two kinds of semiconductor sulfides and its preparation method and application, more specifically, it provides a bismuth sulfide-cuprous sulfide heterojunction composite material with a sea urchin structure and its The preparation method and application belong to the field of inorganic semiconductor materials and the field of photothermal treatment technology. Background technique [0002] In recent years, with the process of industrialization and the deterioration of the environment, the incidence of malignant tumors has shown a rising trend. However, the current main treatment methods, radiotherapy and chemotherapy, have no significant therapeutic effects, and the treatment process has relatively large side effects on the human body. , so there is an urgent need to develop a new treatment with less side effects and better therapeutic effect. [0003] Studies have found that tumor cells wi...

Claims

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Application Information

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IPC IPC(8): A61K41/00A61K49/04A61P35/00
CPCA61K41/0052A61K49/04
Inventor 王舜金辉乐余国东刘爱丽王继昌尹德武任倩
Owner WENZHOU UNIVERSITY
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