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Titanium ligand modified black phosphorus, and preparation method and application thereof

A technology of black phosphorus and ligands, which can be used in pharmaceutical formulations, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., and can solve problems such as not very ideal

Active Publication Date: 2017-02-01
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The core idea of ​​the existing technical solutions is to cover the surface of black phosphorus with other substances to reduce the contact between black phosphorus and oxygen and moisture. The effect of solving the oxidation of black phosphorus is not very satisfactory. Therefore, it is necessary to find new Technical solution to solve the oxidation of black phosphorus

Method used

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  • Titanium ligand modified black phosphorus, and preparation method and application thereof
  • Titanium ligand modified black phosphorus, and preparation method and application thereof
  • Titanium ligand modified black phosphorus, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Synthesize the titanium ligand (TiL) used in this embodiment according to the following route 4 , L: p-toluenesulfonate group):

[0053]

[0054] Dissolve 1.42g p-toluenesulfonic acid in 10mL ethanol, slowly add 5mL ethanol solution with a concentration of 3.44g / mL titanium tetraisopropoxide dropwise at 50°C, and stir at 40-70°C for 1-3 hours, Then it was cooled to room temperature, and the solvent was removed by rotary evaporation, and the residual solid was p-toluenesulfonate of titanium (TiL 4 , L: p-toluenesulfonate group). That 1 H-NMR (D 2 O) as follows figure 1 shown.

[0055] According to the following route, black phosphorus is modified with the p-toluenesulfonate of titanium obtained above. In this route, BP represents black phosphorus, P represents a phosphorus atom, colon represents a lone pair of electrons, and BP's P means a phosphorus atom on black phosphorus:

[0056]

[0057] 10.8 mg of p-toluenesulfonate of titanium (TiL 4 , L: p-toluenesu...

Embodiment 2

[0059] The p-toluenesulfonate (TiL) of titanium is obtained in the same manner as in Example 1 4 , L: p-toluenesulfonate group), the p-toluenesulfonate of 10.8mg titanium (TiL 4 , L: p-toluenesulfonate group) was dissolved in 1 mL of DMSODMF (dimethyl sulfoxide), under nitrogen protection and light-shielding conditions, it was added to 1 mL of DMF solution with 500 μg multilayer black phosphorus nanosheets, Under the protection of nitrogen at 40°C, react in the dark for 24 hours, then centrifuge at a speed of 7000-13000 for 10-20 minutes, remove the supernatant, and redisperse the solid in ultrapure water to obtain black phosphorus modified by titanium ligands. 1 H-NMR detection of black phosphorus modified by titanium ligands has the NMR signal of titanium sulfonate, indicating that titanium sulfonate is successfully coordinated to the surface of black phosphorus.

Embodiment 3

[0061] Prepare by the same method as in Example 1:

[0062] and

[0063] And it was coordinated to the surface of black phosphorus according to the same method as in Example 1. The nuclear magnetic data showed that the above titanium ligands were successfully coordinated to the surface of black phosphorus.

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Abstract

The invention provides a titanium ligand modified black phosphorus, and a preparation method and an application thereof. The titanium ligand modified black phosphorus is a black phosphorus and titanium ligand complex, and the titanium ligand has a structure represented by formula (I) shown in the description; and in the formula (I), R1 is a C1-6 alkyl group or a phenyl group, the phenyl group is optionally further substituted by zero to five of respectively-independent halogen atoms, a C1-C6 alkyl group, a nitro group, a hydroxyl group, an amino group and a C1-3 alkyloxy group, and the C1-6 alkyl group or the C1-3 alkyloxy group is optionally further substituted by zero to three of respectively-independent halogen atoms, a nitro group, a hydroxyl group, an amino group, a methyl group, an ethyl group and an n-propyl group. The titanium ligand modified black phosphorus does not change the inherent properties of black phosphorus, is difficult to oxidize, and has substantially enhanced oxidation resistance.

Description

technical field [0001] The invention relates to black phosphorus and its preparation method and application, in particular to black phosphorus modified by titanium ligands and its preparation method and application. Background technique [0002] Two-dimensional materials have been a research hotspot in recent years. Typical representatives include graphene and semiconducting transition metal dichalcogenides. Since 2013, a new two-dimensional material, black phosphorus, has emerged. Black phosphorus (Black Phosphrus, BP) is a new phosphorus form formed by the reaction of white phosphorus under high temperature and high pressure. It is different from the tetrahedral crystal structure composed of four phosphorus atoms of white phosphorus. After rearrangement, a large number of phosphorus atoms are connected to each other to form a regularly arranged planar structure (H.O.Churchill, P.Jarillo-Herrero.Nat.Nanotechnol.2014,9,330.). In this plane, each phosphorus atom is connected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/28C09C1/00C07F9/06C09C3/08A61K41/00A61K35/00H01L51/30C09K11/06C09K11/70
CPCA61K41/00C07F7/003C07F9/06C09C1/00C09C3/08C09K11/06C09K11/70C09K2211/183C07C309/04C07C309/06C07C309/29C07C309/30C07C309/39C07C309/40C07C309/42C07C309/46C01B25/006H10K10/484H10K50/11H10K85/341A61K41/0052A61K41/0057C09K15/14C09K15/28
Inventor 王怀雨赵岳涛喻学锋
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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