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Photo-thermal conversion material based on thalia dealbata stems, and preparation method and application thereof

A light-to-heat conversion material and re-flowering technology, which is applied in the preparation/purification of carbon, chemical instruments and methods, general water supply saving, etc., can solve the problems of time-consuming and laborious process, complicated preparation process and high raw material cost, and avoid The effect of pulverization treatment, simple preparation process and high water purity

Inactive Publication Date: 2021-07-27
HEFEI UNIV OF TECH
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  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing interfacial water evaporation photothermal materials are difficult to be practically applied in production due to the high cost of raw materials, complicated preparation process, time-consuming and laborious process, and provides a new energy-saving rod-based Light-to-heat conversion materials, preparation methods and applications

Method used

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  • Photo-thermal conversion material based on thalia dealbata stems, and preparation method and application thereof
  • Photo-thermal conversion material based on thalia dealbata stems, and preparation method and application thereof
  • Photo-thermal conversion material based on thalia dealbata stems, and preparation method and application thereof

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Embodiment Construction

[0033] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0034] 1. Pretreatment of Reli flower stems

[0035] Remove the stems and leaves of Zailihua, then cut them off, soak the products in ethanol and distilled water respectively, and make them fully soaked for 1 hour each, and then dry them in a vacuum drying oven at a drying temperature of 60°C . The optical photographs and scanning electron microscope photographs of the cross-section and longitudinal section of Zaili flower stem are as follows: figure 1 As shown, it can be seen from the optical photos that the stalk of Zaili flower is elliptical, the major axis is about 1cm, and the minor axis is about 0.5cm. It can be seen from the scanning electron microscope that it has an oriented porous structure, the size of the pores is about 50 μm to 500 μm, the micropores and macropores are filled with doping, ha...

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Abstract

The invention relates to the technical field of photo-thermal materials, in particular to a photo-thermal conversion material based on thalia dealbata stems and a preparation method and application thereof. The thalia dealbata stems are subjected to flame carbonization and tubular furnace carbonization so as to allow the thalia dealbata stems to have good photo-thermal conversion performance, and then water evaporation performance is accelerated through solar energy to obtain purified water; in addition, the water evaporation performance and the clean water yield of the thalia dealbata stems can be further improved in a simple polydopamine (PDA) coating mode, and purified water which can be directly drunk is obtained; and thus, the problems that an existing interface water evaporation photo-thermal material is difficult to be practically applied to production due to the fact that raw material cost is high, a preparation process is complex, and technology is time-consuming and labor-consuming are solved.

Description

technical field [0001] The invention relates to the technical field of photothermal materials, in particular to a photothermal conversion material based on Zaili flower stems, a preparation method and an application thereof. Background technique [0002] my country has a large population, but fresh water resources are in short supply, and the distribution of water resources is uneven. In cities, the construction of waterworks and the accelerated promotion of various water purifiers have basically guaranteed the supply of qualified drinking water. However, due to the difference in the level of development between urban and rural areas, the level of drinking water security in rural areas and some remote areas still needs to be improved. Drinking water in rural areas mainly comes from surface water (ponds, lakes, etc.) and underground well water obtained locally. Due to water pollution and lack of purification treatment, there are serious health risks. Relevant data show that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05C02F1/04C02F1/14C10B1/00
CPCC01B32/05C02F1/14C02F1/043C10B1/00Y02P20/133Y02A20/212
Inventor 薛敬哲许昊陆杨王倩邢寒野王秋亮董良吴文舒杜亚鑫李康康
Owner HEFEI UNIV OF TECH
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