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A method for the controllable synthesis of T1239 and mtpyp co-assembled nanomaterials
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A technology of T1239 and nanomaterials, which is applied in the field of controllable synthesis of T1239 and MTPyP co-assembled nanomaterials, can solve the problems of single component and insufficient size, and achieve the effect of simple operation, uniform size and good dispersion
Active Publication Date: 2018-06-22
新沂市棋盘工业集中区建设发展有限公司
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However, due to the disadvantages of single porphyrin assembly, such as single component and insufficient size, its application is limited to a certain extent. Therefore, how to realize the controllable synthesis of two or more porphyrin co-assembly has become a research hotspot.
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Embodiment 1
[0021] A controllable synthesis method of T1239 and MTPyP co-assembled nanomaterials, comprising the steps of:
[0022] The first step, the preparation of the solution
[0023] (1) Weigh T1239 powder, dissolve T1239 in 1 M NaOH solution to obtain a mixed solution of T1239 and NaOH (abbreviated as T1239 / NaOH solution), add deionized water to make the concentration of T1239 and NaOH in the mixed solution equal 0.01M;
[0024] (2) Weigh MTPyP powder, dissolve MTPyP in 1 M HCl solution to obtain a mixed solution of MTPyP and HCl (referred to as MTPyP / HCl solution), add deionized water to make the concentration of MTPyP in the mixed solution 0.01M, The concentration of HCl is 0.05M;
[0025] (3) Weigh SDS (sodiumdodecyl sulfate), and dissolve it in deionized water to obtain a 0.025M SDS solution.
[0026] The second step, preparation of co-assembled nanomaterials
[0027] (1) Take 20 mL of 0.025 M emulsifier SDS solution and 168 mL of deionized water in a 250 mL beaker, and st...
Embodiment 2
[0031] The difference with Example 1 is:
[0032] The second step, preparation of co-assembled nanomaterials
[0033] (1) Take 20 mL of 0.025M emulsifier SDS solution and 168 mL of deionized water in a 250 mL beaker, and stir for 10 min;
[0034] (2) Add 0.12 mL of 1 M NaOH solution to the solution obtained in step (1), and quickly inject 9 mL of T1239 / NaOH solution and 3 mL of MTPyP / HCl solution at one time, and the measured pH of the solution is about 3.60.
[0035] (3) Stir it in a constant temperature room at 25°C for 48 h. After the reaction, the color of the solution does not change, and a large amount of filamentous precipitates are produced. Take 1 mL of the original solution after the reaction and centrifuge at 3500 r for 10 min, remove the supernatant, and obtain a large amount of green precipitates. After the precipitate was dispersed with 1 mL of water, its morphology was characterized, and the SEM electronmicroscope was as follows figure 1 As shown in C (T1239 ...
Embodiment 3
[0037] The difference with Example 1 is:
[0038] Change the amount of 1 M NaOH solution added, so that the pH of the reaction system is 4.20, and controllably synthesize the hybrid assembly of the nano-ultralong wire in Example 1 and the long nanoribbon in Example 2, such as figure 1 B (T1239 and ZnTPyP co-assembled nanomaterials), 1E (T1239 and SnTPyP co-assembled nanomaterials).
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Abstract
The invention discloses a controllable synthetic method for a T1239-MTPyP co-assembled nano-material. The controllable synthetic method realizes controllable synthesis of one-dimensional porphyrin nanowires and nanoribbons. The controllable synthetic method comprises the following steps: dissolving tetrapyridyl metal (MTPyP, wherein M is Zn, Sn or the like) porphyrin in a 1M of hydrochloric acid and dissolving T1239 (meso-tetra(4-sulfophenyl)porphin dihydrochloride) in 1M of sodiumhydroxide to prepare porphyrin solutions with certain concentrations and separately and rapidly injecting the solutions into an aqueous solution containing a surfactant in one step; and carrying out stirring at room temperature for 48 h and subjecting the obtained reacted solution to centrifugation and aqueous dispersion so as to obtain a porphyrin nanostructure with uniform morphological size and good monodispersity. The controllable synthetic method provided by the invention is simple to operate and can realize large-scale preparation (gram grade); the prepared T1239-MTPyP co-assembled nano-material can stably exist in water (for 12 months or more) and has good dispersity; and the method is an effective method for controllable preparation of the porphyrin nanostructure.
Description
technical field [0001] The invention belongs to the field of supramolecular self-assembly, and in particular relates to a controllable synthesis method of T1239 and MTPyP co-assembled nanomaterials. Background technique [0002] Supramolecular self-assembly is a method in which two or more molecules utilize their weak interactions to form long-range ordered supramolecular nanomaterials with well-defined microstructure and macroscopic properties, and its properties and functionality are superior to those of a single molecule. or other low-level molecular aggregates. By adjusting various driving forces in the assembly process, such as π-π stacking, van der Waals force, coordination, hydrogen bonding, electrostatic attraction, hydrophilic-hydrophobic, etc., the researchers realized the structure and performance of the assembly. Effective adjustment and control in time and space can prepare supramolecular assemblies with rich morphology and novel functions, which has deep poten...
Claims
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