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Bio-based photothermal conversion material and preparation method and application thereof

A light-to-heat conversion material and bio-based technology, applied in chemical instruments and methods, general water supply conservation, water/sludge/sewage treatment, etc., can solve problems such as high cost and complicated preparation methods, and achieve low cost and excellent preparation process The effect of simplicity and wide range of raw materials

Inactive Publication Date: 2020-07-28
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of complex preparation methods and high cost of photothermal conversion materials at present, one of the purposes of the present invention is to use waste pomelo peel as a base material and coat carbon black on its surface to provide a biological material with simple preparation method and low cost. Based photothermal conversion material, its solar absorption rate is 96%, and the efficiency of photothermal steam reaches 88% under 1 solar irradiation

Method used

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  • Bio-based photothermal conversion material and preparation method and application thereof
  • Bio-based photothermal conversion material and preparation method and application thereof
  • Bio-based photothermal conversion material and preparation method and application thereof

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Embodiment 1

[0026] Embodiment 1: The preparation method of bio-based light-to-heat conversion material in this embodiment is carried out according to the following steps:

[0027] Step 1. Put the inner skin of pomelo peel into absolute ethanol, ultrasonically treat it at a frequency of 40KHz for 30 minutes, take it out, then wash it repeatedly with deionized water until the ethanol is completely removed, and then dry it in an oven at 80°C for 20 hours;

[0028] Step 2. After uniformly mixing 20mL of acetone and 20mL of absolute ethanol, add 10g of E51 type epoxy resin, 2.5g of alkylaryl polyether alcohol and 5g of carbon black, and disperse with 1400rpm high-speed sand mill for 5 hours to obtain a uniform dispersion;

[0029] Among them, E51 epoxy resin was purchased from Sinopharm Chemical Reagent Co., Ltd., alkylaryl polyether alcohol was purchased from Guangzhou Desong Chemical Co., Ltd., model 405, and carbon black was purchased from Sinopharm Chemical Reagent Co., Ltd.

[0030] Step ...

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Abstract

The invention discloses a bio-based photothermal conversion material and a preparation method and application thereof, and belongs to the technical field of solar photothermal conversion. The invention aims to solve the technical problems of complex preparation method and high cost of an existing photothermal conversion material. The bio-based photothermal conversion material is prepared by the following steps of: ultrasonically treating shaddock peel with absolute ethyl alcohol, cleaning, drying, uniformly coating the surface with a dispersion liquid and curing. The preparation method specifically comprises the following steps of: 1, putting shaddock peel into absolute ethyl alcohol for ultrasonic treatment, then repeatedly washing with deionized water until the ethyl alcohol is completely removed, and then drying; 2, uniformly mixing acetone and absolute ethyl alcohol, then adding epoxy resin, a dispersing agent and carbon black, and sanding until the mixture is uniformly dispersed to obtain a dispersion liquid; and 3, uniformly coating the dispersion liquid obtained in the step 2 on the surface of the shaddock peel treated in the step 1, and curing to obtain the bio-based photothermal conversion material. The material is used for sewage treatment and seawater desalination.

Description

technical field [0001] The invention belongs to the technical field of solar photothermal conversion; in particular, it relates to a bio-based photothermal conversion material and its preparation method and application. Background technique [0002] In today's twenty-first century, the problem of lack of water resources is becoming more and more serious. 97% of the water resources on the earth are seawater. In order to increase the total amount of freshwater available to human beings, desalination of seawater has become a feasible method. However, the traditional desalination method is costly, long-term, generally effective, and consumes a lot of energy. For example, Distillation, reverse osmosis and other methods. Solar energy is a low-cost and renewable clean energy. Using photothermal conversion materials to convert solar energy into thermal energy to locally heat water bodies and obtain drinkable fresh water has a very promising application prospect. [0003] The photo...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F103/08
CPCC02F1/14C02F2103/08Y02A20/124Y02A20/142Y02A20/212
Inventor 康红军刘宸希吴晓宏秦伟卢松涛
Owner HARBIN INST OF TECH
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