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Iron disulfide doped Mo2S3 porous system as well as preparation method and application thereof

A technology of molybdenum trisulfide and iron disulfide, which is applied in chemical instruments and methods, general water supply conservation, water/sludge/sewage treatment, etc., can solve problems such as instability and low evaporation rate, and achieve low cost and evaporation The effect of high rate and high solar absorption performance

Active Publication Date: 2020-04-14
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, low-cost molybdenum disulfide-based solar evaporation systems have provided an ideal photothermal material for solar steam generation, however, instability and low evaporation rates remain challenges for practical applications.

Method used

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  • Iron disulfide doped Mo2S3 porous system as well as preparation method and application thereof
  • Iron disulfide doped Mo2S3 porous system as well as preparation method and application thereof
  • Iron disulfide doped Mo2S3 porous system as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Preparation of iron disulfide-doped molybdenum trisulfide powder: first prepare 15 mL of 18.2 g / L ferric chloride aqueous solution, then disperse 0.124 g of ammonium molybdate and 0.548 g of thiourea in 15 mL of pure water by magnetic stirring, Then slowly add the prepared ferric chloride solution dropwise into the mixed solution of ammonium molybdate and thiourea, after stirring for 30-60min, add 0.3mL of hydrochloric acid dropwise, continue stirring for 30-60min, and transfer the mixed solution to the reaction kettle. Reaction at 200°C. Reaction finishes cooling to room temperature, water, ethanol centrifugation 4 times, and drying can obtain iron disulfide doped molybdenum trisulfide powder.

[0054] (2) Preparation of iron disulfide-doped molybdenum trisulfide porous system: ultrasonically disperse 20 mg of the powder obtained in step (1) in 30 mL of water, after the dispersion is uniform, use 0.5 g of sodium alginate as the main raw material of the organic fram...

Embodiment 2

[0056] According to the preparation method of Example 1, just change the high-temperature reaction temperature into 180° C. to obtain the following image 3 of the shape. get as Figure 9 photothermal performance.

Embodiment 3

[0058] Press the preparation method of embodiment 1, just change the high temperature reaction temperature into 190 ℃, obtain as follows image 3 of the shape. get as Figure 9 photothermal performance.

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Abstract

The invention provides a preparation method of an iron disulfide doped Mo2S3 porous system. The preparation method comprises the following steps: 1) preparing iron disulfide doped Mo2S3 powder; and 2)preparing the iron disulfide doped Mo2S3 porous system. The invention further provides a porous solar evaporation system based on iron disulfide doped Mo2S3. As a light acquisition and photothermal conversion material, the system has dual characteristics of high absorptivity and water supply, and under simulated sunlight irradiation of 1kW m <-2 >, the evaporation rate can reach 2.4 kg m <-2 > h<-1 > at most, which is higher than that of all currently reported molybdenum disulfide-based evaporation systems. Meanwhile, the iron disulfide doped Mo2S3 porous system prepared by the invention canbe stably used for purification treatment of seawater and sewage containing organic matters and heavy metal ions.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to an iron disulfide-doped molybdenum trisulfide porous system and a preparation method and application thereof. Background technique [0002] The survey found that two-thirds of the world's population does not have access to clean, potable water for at least one month of the year. Nearly one billion people face severe water scarcity throughout the year. The shortage of fresh water resources has become a worldwide problem that people urgently need to solve. Due to the abundant, clean, and non-polluting features of solar energy, the low-energy solar steam technology has become the most effective way to solve this world problem. But conventional solar steam is extremely inefficient (30-45%). To meet the growing demand for fresh water, the tantalizing potential of fresh water generation by solar heating directly at the water-air interface with evaporation ef...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F103/08
CPCC02F1/14C02F2101/20C02F2101/30C02F2103/08Y02A20/212
Inventor 王贤保郭珍珍余芳
Owner HUBEI UNIV
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