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Preparation method and application of seawater desalination material

A seawater and photothermal agent technology, which is applied in seawater treatment, general water supply saving, heating water/sewage treatment, etc., can solve the problems of low photothermal conversion efficiency, high price, secondary pollution, etc., to reduce thermal conductivity, increase The effect of large evaporation and reduced heat loss

Inactive Publication Date: 2017-01-04
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of ordinary photothermal agents that are expensive, low photothermal conversion efficiency, and easy to cause secondary pollution. The heat energy generated by the photothermal agent after light irradiation can evaporate water surface molecules, and separate clean water from seawater to achieve seawater desalination process

Method used

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  • Preparation method and application of seawater desalination material
  • Preparation method and application of seawater desalination material
  • Preparation method and application of seawater desalination material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A: Cut the nickel foam into a disc with a diameter of 5.6cm.

[0033] B: Accurately weigh 100mg white P25, 100mgNaBH 4 , mix the two, place them under Ar gas at 350°C for 1h to obtain hydrogenated TiO 2 (i.e. H-TiO 2 ).

[0034] C: TIO after hydrogenation 2 Place it in a 50ml small beaker, add 2ml of absolute ethanol dropwise, ultrasonicate for 10min, and stir for 30min to obtain a viscous slurry, which is evenly drip-coated on the nickel foam, and dried at 60°C for 12h.

[0035] Table 1

[0036] sample name Fluoride (mg / L) Chloride (mg / L) Bromide (mg / L) Sulfate (mg / L) seawater 1.023 1.682×10 4 57.468 2601.22 Sea steamed and centrifuged ＜0.005 3.871 ＜0.016 0.965

[0037] Table 2

[0038]

[0039]

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PUM

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Abstract

The invention discloses a preparation method and application of a seawater desalination material, and relates to a photothermal material. The method comprises the following steps that 1, a carrier of a photothermal agent is provided; 2, the photothermal agent is provided; 3, the photothermal agent is uniformly loaded on the carrier. The adopted raw materials are low in price, easy to obtain, green and environmentally friendly, the method is simple and efficient, the synthesis condition is mild and controllable, secondary pollution is not caused, and large-scale preparation is easy. The photothermal material prepared through the method is high in efficiency in practical application of seawater desalination and good in effect and has a good application prospect.

Description

technical field [0001] The invention relates to a photothermal material, in particular to a preparation method and application of a seawater desalination material. Background technique [0002] Water is the foundation of human survival. 70% of the earth is covered by water, but the fresh water that humans rely on for survival only accounts for 2.5%-3% of the total surface water. With the increase of population and the advancement of industrialization , the shortage of fresh water resources is limiting the development of human civilization. From the perspective of the ultimate survival goal of human beings, seawater desalination is an important way to solve the shortage of fresh water resources. [0003] So far, there are two main methods of seawater desalination, namely membrane separation method and distillation method. The membrane separation method has the advantages of low energy consumption and easy operation, but it also has the problems of poor chemical stability and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04C02F103/08
CPCC02F1/04C02F2103/08Y02A20/124
Inventor 陈戈陈修好孙再成
Owner BEIJING UNIV OF TECH
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