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Black mesoporous carbon loaded ZrO2 nanoparticles and preparation method and application thereof

A nanoparticle and mesoporous carbon technology, applied in the preparation/purification of carbon, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problem of inability to achieve full solar spectrum light absorption, unfavorable light absorption, and energy band width Large and other problems, to achieve high light-to-heat conversion efficiency, simple operation process, and good absorption capacity

Pending Publication Date: 2020-08-25
中科苏州微电子产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, semiconductor oxide nanoparticles are prone to agglomeration, resulting in a small specific surface, which is not conducive to light absorption, and ZrO 2 The energy band width is relatively large (about 3.6eV), so the full solar spectrum light absorption cannot be achieved

Method used

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  • Black mesoporous carbon loaded ZrO2 nanoparticles and preparation method and application thereof
  • Black mesoporous carbon loaded ZrO2 nanoparticles and preparation method and application thereof
  • Black mesoporous carbon loaded ZrO2 nanoparticles and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A black mesoporous carbon supported ZrO 2 A method for preparing nanoparticles, comprising the steps of:

[0039] S1. Weigh 10.4mg of zirconium tetrachloride and 72.5mg of terephthalic acid, dissolve them in a 200mL hydrothermal reaction kettle with 100mL N,N-dimethylformamide and 12mL of glacial acetic acid, put the reaction kettle into React in a dry box at 120°C for 12 hours, transfer the contents of the reaction kettle to a centrifuge tube for mixing, centrifuge at a speed of 11,000 rpm for 3 minutes, and use a mixture of methanol and N,N-dimethylformamide (1:4v / v) Wash the precipitate three times, and dry it in a vacuum oven to obtain a white powder, which is the UIO-66 precursor;

[0040] Put the UIO-66 precursor in a high-temperature tube furnace, protect it with nitrogen, and heat it up to 800°C at a rate of 10°C / min for 2 h to obtain ZrO supported on black mesoporous carbon. 2 Nanoparticles.

[0041] Get the UIO-66 precursor that embodiment 1 makes, the ZrO...

Embodiment 2

[0052] A black mesoporous carbon supported ZrO 2 A method for preparing nanoparticles, comprising the steps of:

[0053] S1. Weigh 20.8mg of zirconium tetrachloride and 145mg of terephthalic acid, dissolve them in a 250mL hydrothermal reaction kettle filled with 200mL N,N-dimethylformamide and 24mL of glacial acetic acid, put the reaction kettle into 120 ℃ in a drying oven for 12 hours, transfer the contents of the reaction kettle to a centrifuge tube for mixing, centrifuge at a speed of 11000rpm for 3min, and use a mixture of methanol and N,N-dimethylformamide (1:4v / v ) washing the precipitate three times, drying in a vacuum oven to obtain a white powder which is the UIO-66 precursor;

[0054] Put the UIO-66 precursor in a high-temperature tube furnace, protect it with nitrogen, and heat it up to 800°C at a rate of 10°C / min for 2 h to obtain ZrO supported on black mesoporous carbon. 2 Nanoparticles.

Embodiment 3

[0056] A black mesoporous carbon supported ZrO 2 A method for preparing nanoparticles, comprising the steps of:

[0057] S1. Weigh 1.04mg zirconium tetrachloride and 7.25mg terephthalic acid, dissolve them in a 15mL glass bottle containing 10mL N,N-dimethylformamide and 1.2mL glacial acetic acid, cover the bottle cap, Put the glass bottle in a drying oven at 120°C for 12 hours, transfer the contents of the glass bottle to a centrifuge tube for mixing, centrifuge at 11,000 rpm for 3 minutes, and use a mixture of methanol and N,N-dimethylformamide (1:4v / v) wash the precipitate three times, and dry it in a vacuum oven to obtain a white powder, which is the UIO-66 precursor;

[0058] Put the UIO-66 precursor in a high-temperature tube furnace, protect it with nitrogen, and heat it up to 800°C at a rate of 10°C / min for 2 h to obtain ZrO supported on black mesoporous carbon. 2 Nanoparticles.

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Abstract

The invention discloses a preparation method of black mesoporous carbon loaded ZrO2 nanoparticles. The preparation method comprises the following steps: S1, carrying out solvothermal reaction on terephthalic acid and zirconium tetrachloride in a mixed solvent, centrifuging, and taking the precipitate to obtain a UIO-66 precursor; and S2, taking the UIO-66 precursor, and calcining the UIO-66 precursor in an inert gas atmosphere to obtain the black mesoporous carbon loaded ZrO2 nanoparticles. The invention further discloses the black mesoporous carbon loaded ZrO2 nanoparticles, and the black mesoporous carbon loaded ZrO2 nanoparticles are prepared according to the preparation method of the black mesoporous carbon loaded ZrO2 nanoparticles. The invention also discloses an application of the black mesoporous carbon loaded ZrO2 nanoparticles in seawater desalination. The black mesoporous carbon loaded ZrO2 nanoparticles have a multi-layer pore structure and are high in specific surface area, good in sunlight absorption capacity and high in photo-thermal conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of photothermal nanomaterials, in particular to ZrO supported by black mesoporous carbon 2 Nanoparticles and their preparation methods and applications. Background technique [0002] In my country, the total amount of fresh water is nearly 3 trillion tons, ranking sixth in the world's water resources rankings. However, considering the large population, China's per capita water is less than 3,000 tons, which is among the more than 40 countries in the world that are seriously short of water. one of the countries. In addition, the distribution of China's fresh water resources is uneven, with great regional differences. However, my country's coastal areas are economically developed, densely populated, densely populated with large cities, with large water consumption and serious water shortage problems. In China, more than 300 cities lack water, most of which are located in coastal areas. The shortage of water ...

Claims

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Application Information

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IPC IPC(8): C01G25/02C01B32/05B82Y40/00B82Y30/00C02F1/14C02F103/08
CPCC01G25/02C01B32/05B82Y40/00B82Y30/00C02F1/14C02F2103/08C01P2004/01C01P2002/72C01P2004/03C01P2002/82C01P2002/84C01P2004/80Y02A20/142Y02A20/124Y02A20/212
Inventor 朱青陈晓露李磊磊杨丽
Owner 中科苏州微电子产业技术研究院
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