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Bionic light capture device N3/PT1/AAO film as well as preparation process and application thereof

A technology of N3-PT1 and preparation process, which is applied in the direction of photovoltaic power generation, electrolytic components, electrolytic organic production, etc., to achieve the effect of easy operation and realization, simple and novel preparation method

Active Publication Date: 2021-03-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, regardless of whether they are based on natural proteins or artificial photosensitive molecules, they are still in the primary simulation stage at the single-molecule nA level, and there is still a lot of room for improvement in light-harvesting performance.

Method used

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  • Bionic light capture device N3/PT1/AAO film as well as preparation process and application thereof
  • Bionic light capture device N3/PT1/AAO film as well as preparation process and application thereof
  • Bionic light capture device N3/PT1/AAO film as well as preparation process and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The substrate of PT1 and N3 electrostatic self-assembly used in the present invention is a funnel-shaped aluminum oxide nanochannel with asymmetric structure, which is prepared by three times of anodic oxidation combined with phosphoric acid pore expansion. The specific steps are as follows:

[0053] (1) Pretreatment: Firstly, the specification is made of high-purity aluminum (99.999% purity, 0.2mm thickness) with a size of 4.5×5.5cm 2 The aluminum sheet was pre-treated in detergent, acetone, absolute ethanol and high-purity water for 10 minutes respectively to clean the impurities on the aluminum oxide film.

[0054] (2) Electrochemical polishing: in perchloric acid (HClO 4 ) and ethanol (volume ratio 1:4) for electrochemical polishing, the polishing voltage is 17.0V, and the polishing time is 7 minutes, which makes the aluminum surface smoother and is conducive to the growth of the porous alumina layer.

[0055] (3) The first anodic oxidation: In a low-temperature an...

Embodiment 2

[0064] The preparation of a PT1-N3(T) bionic light harvesting device, the specific implementation steps are as follows:

[0065] (1) Using the preparation method provided in Example 1, a funnel-shaped aluminum oxide nanochannel with asymmetric structure was prepared by anodic oxidation method combined with phosphoric acid pore expansion method, washed and naturally air-dried, and set aside. The upper surface pore diameter of the funnel-shaped alumina nanochannel is 60±5nm, the lower surface pore diameter is 30±5nm, and the length is 80μm.

[0066] (2) The preparation solvent is a 1 mg / mL PT1 solution in DMF.

[0067] (3) Using the solvent evaporation method, PT1 was modified in the alumina nanochannel for 10 h, and the modification length was 80 μm to obtain PT1 functionalized AAO.

[0068] (5) The preparation solvent is 2mM N3 solution of ethanol and ethanol solution.

[0069] (6) The N3 solution was modified at the small hole end of the AAO nanochannel grafted with PT1 for...

Embodiment 3

[0074] The preparation of PT1-N3(B) bionic light harvesting system device, the specific implementation steps are as follows:

[0075] The other steps implemented in this example are the same as the preparation process in Example 2, except that the electrostatic assembly site is at the B end of the macropore.

[0076] Specifically, the AAO of the grafted PT1 in the case 2 (3) is placed in a self-made electrolyzer such as Figure 5 At the position of the connection 5c in the middle of the two tanks, inject the ethanol solution in the small hole side tank 5a of the AAO, and the N3 solution prepared in (4) in the large hole side tank 5b. Both sides control the length of grooming time at the same time. After modification for 4 hours, rinse with a large amount of ultrapure water and air-dry naturally to obtain a biomimetic photoresponse system device with a PT1-N3 (B) structure of the present invention, and the modified length of N3 is 54 μm.

[0077] PT1-N3(B) nanochannels are ap...

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Abstract

The invention belongs to the technical field of nano materials, and particularly relates to preparation of an N3 / PT1 / AAO film of a bionic light capture device. The preparation method comprises the following steps: taking a funnel-shaped aluminum oxide nano-channel (AAO) as a substrate, modifying quaternary ammonium salt modified polythiophene PT1 on the substrate by adopting a solvent evaporationmethod, and respectively preparing a heterogeneous PT1-N3 (T) film and a heterogeneous PT1-N3 (B) film through electrostatic assembly of a bipyridine ruthenium complex N3 at a small hole end (T) or alarge hole end (B) of the funnel-shaped AAO; on the other hand, grafting N3 molecules on the AAO by using a limited molecular diffusion method, and respectively carrying out electrostatic self-assembly of PT1 at the T end and the B end of the functionalized AAO to prepare the N3-PT1 (T) and N3-PT1 (B) heterogeneous films. The preparation method is simple, novel and easy to operate, and a large-scale N3-PT1 heterogeneous surface is formed on the inner wall of the nano channel. Under the irradiation of simulated sunlight, not only can the capture of [mu]A-level high-photo-response ion current berealized, but also the ion selectivity and the ion flux are better, and a new research thought is provided for developing a high-performance nano-fluidic bionic light capture system.

Description

technical field [0001] The present invention relates to the technical field of nanomaterials, in particular to the preparation of a bionic light-harvesting device N3 / PT1 / AAO film, and more specifically to a bionic light-harvesting device based on the synergistic effect of bipyridyl ruthenium complexes and polythiophene derivatives. Preparation and application of biomimetic light-harvesting system of alumina nanochannel membrane. Background technique [0002] Harnessing solar energy efficiently is one of the greatest challenges of our time. In nature, biological systems harvest light in a variety of ways, including harvesting solar energy through photosynthesis. In the process of plant photosynthesis, the main process of photon capture is the absorption of light energy by pigment molecules on the photosynthetic membrane, the absorbed light energy is transmitted in the form of excitation energy, charge separation occurs in the photosynthetic reaction center, and in the photos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/095C25B1/55C25B3/21C25D11/04C25D11/12C25D11/24
CPCC25D11/045C25D11/12C25D11/24Y02E10/549
Inventor 范霞任艳
Owner BEIHANG UNIV
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