a mos 2 Controllable Synthesis and Simultaneous Surface Modification of Nanosheets

A nanosheet, mixed solvent technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of controllable synthesis and surface PEG modification of MoS2 nanosheets that have not yet been developed, and the inability to achieve nanosheet shape. appearance, complex process and other problems, to achieve good blood compatibility and biocompatibility, improve biocompatibility, and the effect of simple process

Active Publication Date: 2016-08-17
江苏先进无机材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to MoS 2 Nanosheets themselves cannot achieve surface modification by linking with organic carbon chains such as PEG in the way of "π-π conjugation" like graphene-like carbon materials. Therefore, the reported synthesis and surface PEG modification processes are very complicated and difficult. Unable to implement MoS 2 Efficient Control of Nanosheet Morphology
So far, the field has not developed a method that can simultaneously implement the MoS 2 Controllable synthesis of nanosheets and methods for surface PEG modification

Method used

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  • a mos <sub>2</sub> Controllable Synthesis and Simultaneous Surface Modification of Nanosheets
  • a mos <sub>2</sub> Controllable Synthesis and Simultaneous Surface Modification of Nanosheets
  • a mos <sub>2</sub> Controllable Synthesis and Simultaneous Surface Modification of Nanosheets

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Experimental program
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Effect test

Embodiment 1

[0064] Weigh 0.3 g of ammonium tetrathiomolybdate (purchased from Changsha Jingkang New Material Technology Co., Ltd.), mix with 60 mL of distilled water, and stir at room temperature for 1 h to obtain a clear and transparent solution. The resulting solution was transferred to a 100 mL volume stainless steel reaction kettle lined with p-polyphenylene and sealed. Put the reaction kettle into a high-temperature oven for heat treatment at 220°C for 12 hours. After naturally cooling to room temperature, the reaction mixture was centrifuged and washed 5 times with 50% ethanolamine solution and distilled water to obtain MoS 2 Nanosheets. TEM observation results ( figure 1 In a) shows that the resulting MoS 2 Presents an irregular lamellar structure. Using Image J 1.40G software (http: / / rsb.info.nih.gov / ij / download.html, National Institutes of Health, USA) to measure the diameter of nanosheets (measure at least 50 sheets), MoS 2 The diameter of the lamellae is 50±10 nm.

Embodiment 2

[0066] Weigh 0.3 g of ammonium tetrathiomolybdate (purchased from Changsha Jingkang New Material Technology Co., Ltd.), mix with 30 mL of distilled water, and stir at room temperature for 1 h to obtain a clear and transparent solution. Then, 30 mL PEG400 (Shanghai Sinopharm Chemical Reagent Co., Ltd.) was added to the above solution, and stirring was continued at room temperature for 1 h. The resulting solution was transferred to a 100 mL volume stainless steel reaction kettle lined with p-polyphenylene and sealed. Put the reaction kettle into a high-temperature oven for heat treatment at 220°C for 12 hours. After naturally cooling to room temperature, the reaction mixture was centrifuged and washed 5 times with 50% ethanolamine solution and distilled water to obtain MoS 2 - PEG nanosheets. TEM observation results ( figure 1 b) shows that the resulting MoS 2 It presents an irregular lamellar structure with a lamellar diameter of 79±15nm. FTIR results ( figure 2 ) indicat...

Embodiment 3

[0068] Weigh 0.15 g of ammonium tetrathiomolybdate (purchased from Changsha Jingkang New Material Technology Co., Ltd.), mix with 30 mL of distilled water, and stir at room temperature for 1 h to obtain a clear and transparent solution. Then, 30 mL PEG400 (Shanghai Sinopharm Chemical Reagent Co., Ltd.) was added to the above solution, and stirring was continued at room temperature for 1 h. The resulting solution was transferred to a 100 mL volume stainless steel reaction kettle lined with p-polyphenylene and sealed. Put the reactor into a high-temperature oven for heat treatment at 220°C for 12 hours. After cooling to room temperature naturally, the reaction mixture was centrifuged and washed 5 times with 50% ethanolamine solution and distilled water to obtain MoS 2 - PEG nanosheets. TEM observation results ( figure 1 In c) shows that the obtained MoS 2 -PEG presents an irregular lamellar structure with a lamellar diameter of 103±22nm. FTIR results ( figure 2 ) indicates...

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Abstract

The present invention relates to a kind of MoS 2 A method for controllable synthesis and simultaneous surface modification of nanosheets, the method comprising: using ammonium tetrathiomolybdate as Mo source and S source, or using ammonium molybdate as Mo source and thiourea as S source, dissolving it In water or a mixed solvent of water and polyethylene glycol, after heat treatment at 200-220°C for 12-18 hours, MoS is obtained by separation and washing 2 Nanosheets wherein the type, concentration and / or solvent used to control the MoS and S sources are controlled to control the MoS 2 nanosheet size.

Description

technical field [0001] The invention belongs to the field of biological nanomaterials, in particular to a MoS with controllable synthesis and simultaneous surface modification 2 Preparation methods of nanosheets. Background technique [0002] Cancer is one of the most dangerous diseases currently threatening human health. According to the "2012 China Cancer Registration Annual Report" released by the National Cancer Registry Center, the probability of death due to cancer among Chinese residents is 13%, with an average of 1 in every 7-8 people dying of cancer. In the past 20 years, cancer in my country has shown a trend of younger age and higher morbidity and mortality in the "third line". Surgery, radiotherapy and chemotherapy are several important means of cancer treatment at present. Surgical treatment adopts local resection of tumor tissue, which usually brings huge trauma to the patient's body and mind. Chemotherapy and radiotherapy are two main means of treating can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G39/06B82Y30/00B82Y40/00
Inventor 王世革陈航榕施剑林马明
Owner 江苏先进无机材料研究院
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