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Paper based composite light absorption material for efficient photothermal conversion and preparation method thereof

A light-absorbing material, photothermal conversion technology, applied in coated paper base paper, lighting and heating equipment, pulp raw material addition process, etc., can solve problems such as high cost and complex preparation process, achieve low cost and wide spectral response range , the effect of simple operation

Inactive Publication Date: 2018-01-19
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the application of carbon materials for photothermal conversion mainly focuses on graphene, carbon nanotubes, and carbon particles. The preparation methods of these materials also have the disadvantages of complicated preparation process and high cost.

Method used

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  • Paper based composite light absorption material for efficient photothermal conversion and preparation method thereof
  • Paper based composite light absorption material for efficient photothermal conversion and preparation method thereof
  • Paper based composite light absorption material for efficient photothermal conversion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Synthesis of ink-paper-based composite light-absorbing material based on fast filter paper

[0033] 1) Put 25×25×0.2mm 3 The filter paper has a pore size of 80–120μm. The fast qualitative filter paper is placed in 20ml of black carbon ink solution, and then placed in an ultrasonic cleaning machine. Under the action of 70% ultrasonic power, ultrasonic deposition is performed for 5 minutes, repeated three times, and the ink is Carbon black particles are deposited on the surface of the filter paper fiber;

[0034] 2) Vacuum drying the filter paper loaded with carbon black particles obtained in step 1) at 60° C., so that the ink carbon black particles can be firmly attached to the surface of the filter paper fiber to obtain a dried material;

[0035] 3) Put the dried material obtained in step 2) into a beaker, add 20ml of deionized water, and sonicate it for 5 minutes under the action of ultrasound with a power of 70% until the color of the deionized water does not chan...

Embodiment 2

[0038] Example 2: Synthesis of ink-paper-based composite light-absorbing material based on medium-speed filter paper

[0039] 1) Put 25×25×0.2mm 3 The medium-speed qualitative filter paper with a pore size of 20-60μm is placed in 20ml black carbon ink solution, and then placed in an ultrasonic cleaning machine. Under the action of 100% ultrasonic power, ultrasonic deposition is performed for 3 minutes. Repeat three times to remove the carbon in the ink. Black particles are deposited on the surface of the filter paper fiber;

[0040] 2) Vacuum drying the filter paper loaded with carbon black particles obtained in step 1) at 70° C., so that the ink carbon black particles can be firmly attached to the surface of the filter paper fibers to obtain a dried material;

[0041] 3) Put the dried material obtained in step 2) into a beaker, add 20ml of deionized water, under the action of 100% ultrasonic power, until there is no change in the color of the deionized water, so as to attach the exc...

Embodiment 3

[0044] Example 3: Synthesis of ink-paper-based composite light-absorbing material based on slow filter paper

[0045] 1) Put 25×25×0.2mm 3 The filter paper with a pore size of 1–3μm is placed in 40ml of black carbon ink solution, and then placed in an ultrasonic cleaning machine. Under the action of ultrasound with a power of 70%, ultrasonic deposition is performed for 5 minutes. Repeat three times to put the ink in Carbon black particles are deposited on the surface of the filter paper fiber;

[0046] 2) Vacuum drying the filter paper loaded with carbon black particles obtained in step 1) at 60° C., so that the ink carbon black particles can be firmly attached to the surface of the filter paper fiber to obtain a dried material;

[0047] 3) Put the dried material obtained in step 2) into a beaker, add 40ml of deionized water, under the action of 70% ultrasonic power, until there is no change in the color of the deionized water, so as to attach the excess to the filter paper fiber Th...

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Abstract

The invention discloses a paper based composite light absorption material for efficient photothermal conversion and a preparation method thereof. Carbon black particles in commercial carbon black inkare deposited on a filter paper surface by ultrasonic loading, the preparation method is simple, low in cost, and green and environment-friendly, and a composite light absorption material characterized by broad spectral response range, high photothermal conversion efficiency and strong hydrophilcity can be obtained, is easy for mass production and wide application, enriches the existing photothermal material field, and fills the blank of the technical field. At the same time, by utilizing the efficient photothermal conversion characteristic, the paper based composite light absorption materialprovided by the invention can be applied to seawater desalination, can meet the social requirement for rapid acquisition of purified water, and also provides a new way for photothermal utilization ofsolar energy.

Description

Technical field: [0001] The invention relates to the technical field of light-to-heat conversion materials, in particular to a paper-based composite light-absorbing material for realizing high-efficiency light-to-heat conversion and a preparation method thereof. Background technique: [0002] At present, facing energy shortage and environmental pollution, it is urgent to find an environmentally friendly, safe and clean energy. However, solar energy has the advantages of wide application, inexhaustible and inexhaustible use, and has become a research hotspot in today's society. The use of solar energy is mainly divided into three directions: photothermal applications, photovoltaic applications and photochemical applications. For solar thermal applications, the solar thermal power generation mode is mainly used. Generally, the solar thermal collector converts the absorbed solar radiation into working fluid steam, and then the steam drives the steam turbine to perform work to gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/32D21H25/06D21H25/08D21H19/38D21H19/72F24S70/10
CPCD21H23/22D21H25/04D21H27/08Y02A20/142
Inventor 苗蕾邓梓阳刘朋飞周建华苏珲
Owner GUILIN UNIV OF ELECTRONIC TECH
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