A kind of hollow black aluminum titanium oxide solar light absorbing material and its preparation method and application

A technology for absorbing materials and sunlight, applied in titanium oxide/hydroxide, chemical instruments and methods, titanium dioxide, etc., to achieve high-efficiency light absorption, high light-to-heat conversion efficiency, and easy-to-obtain raw materials

Active Publication Date: 2021-06-22
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it remains a great challenge to scale up the above-mentioned developed materials in the short term.

Method used

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  • A kind of hollow black aluminum titanium oxide solar light absorbing material and its preparation method and application
  • A kind of hollow black aluminum titanium oxide solar light absorbing material and its preparation method and application
  • A kind of hollow black aluminum titanium oxide solar light absorbing material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1 hollow black aluminum titanium oxide solar absorption material sample 1 # Preparation

[0074] Tell 5G Tio 2 Powder, 3G aluminum powder, 7.14g alcl 3 The powder was ground for 30 min with a mortar. Then, poured into the nickel crucible, placed the nickel crucible in the tube furnace, calcined parameters: heating rate 5 ° C · min -1 The calcination at a temperature of 600 ° C and the holding time is 5 h, the calcination atmosphere is Ar, and naturally cooling after calcination. After the above reaction, the product was washed with a 1 MHCl solution for 24 h to give a hollow black aluminum titanium oxide, remembered as a sample 1. # . Determination of the measurement element analysis, the molar ratio of the Al (Al + Ti) = 0.46 in the sample of the Ti element.

Embodiment 2

[0077] Example 2 Hollow Black Aluminum Titanium Oxide Solar Absorption Material Sample 2 # Preparation

[0078] Tell 5G Tio 2 Powder, 3 g of aluminum powder, grinding the two for 30 min, then poured into the nickel crucible, placing the nickel crucible in the tube furnace, calcined parameters: temperature rising 5 ° C · min -1 The calcination at a temperature of 600 ° C and the holding time is 5 h, the calcination atmosphere is Ar, and naturally cooling after calcination. After the above reaction, the product was washed with 1 M HCl solution for 24 h, gave a hollow black aluminum titanium oxide, remembered as a sample 2 # .

[0079] Table 1

[0080]

[0081] Al + TiO in the sample cover 2 Powder, contrast D1 # (Tio 2 Powder), sample 1 # ~ 2 # Such as figure 1 Indicated. From figure 1 It can be seen that the sample 1 after calcination and pickling # ~ 2 # Black is presented.

Embodiment 3

[0082] Example 3 Parallel sample D1 # (Tio 2 Powder), sample 1 # ~ 2 # Light absorption characterization

[0083] Contracted sample D1 # , Sample 1 # ~ 2 # Perform ultraviolet - visible - near-infrared diffuse reflection test, such as figure 2 Indicated. The results show that the hollow black aluminum titanium oxide solar absorbing material provided in this application, and the optical absorption can exceed 90% in the wavelength range of 200 nm to 2500 nm.

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Abstract

This application disclosed a hollow black aluminum titanium oxide sunlight absorption material and its preparation methods and applications, which belongs to the field of comprehensive solar utilization.The hollow black aluminum titanium oxide sunlight absorption material has a hollow structure, and its particle size is distributed 50-300nm, and the Moore Al / (AL+TI) of the AL element and TI element is 0.4 ~ 0.7: 1.The solar light absorption material is prepared through the method including the following steps: will contain aluminum and TIO 2 And AlCl 3 The raw materials are burned at a temperature of no less than 600 ° C, and the products are washed after burning.The hollow black aluminum titanium oxide sunlight absorption material has high -efficiency light absorption and high -efficiency light thermal conversion rate. The raw materials for preparation methods are cheap, simple and environmentally friendly.The hollow black aluminum titanium oxide sunlight absorption material and the porous film prepared by it can be applied to high -efficiency light and hot seawater dehydration.

Description

Technical field [0001] The present application relates to a hollow black aluminum titanium oxide solar absorbing material and a preparation method thereof, and in particular to a photothermal conversion process, and the photothermal conversion process is applied to high-salt water deraining, which belongs to the field of solar energy utilization. Background technique [0002] As we all know, solar energy is the endless and sustainable cleaning energy in the world, how efficient and converts solar energy is a major challenge. At present, there are many ways to try to harvest and convert solar energy, including photovoltaic power generation, artificial photosynthesis and photothermal conversion. Among them, photothermal conversion is one of the effective forms of solar energy. Photothermal conversion causes water evaporation and an important aspect of solar energy applications. [0003] With the development of industrialization, urbanization and population growth, the freshwater cr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/047B82Y40/00C08L27/16C08K7/24C08J5/18C02F1/14C02F103/08
CPCB82Y40/00C01G23/047C01G23/08C01P2002/82C01P2002/84C01P2004/04C01P2004/62C01P2004/64C01P2006/60C02F1/14C02F2103/08C08J5/18C08J2327/16C08K7/24Y02A20/124Y02A20/142Y02A20/212
Inventor 温珍海易罗财
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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