Nano material and preparation method thereof

A technology of nanomaterials and conductors, applied in nanocarbon, nanotechnology, nano-optics, etc., can solve the problems of unsatisfactory repeatability and stability cost of synthesis methods, achieve good catalytic stability and repeatability, and improve activity The effect of center distribution and excellent catalytic activity

Pending Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the repeatability, stability and cost of the

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  • Nano material and preparation method thereof

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Example Embodiment

[0031]The first aspect of the present disclosure: provides a method of preparing a nanomaterial, which includes the following steps:

[0032]A. Connect the first conductive material with the positive electrode of the DC power source, and apply a voltage of 0.1 to 60 V, preferably 5 to 40 V, which is applied to a voltage of 0.1 to 60 V, preferably 5 to 40 V, and electrolytic fluid. To 10 days, the obtained electrolytic solution after the obtained electrolytic solution was concentrated to obtain a carbon dot solution, wherein the first conductive material is a graphite rod, and the electrolyte optionally contains a first organic base;

[0033]b, mix the silicon source, the active center source, the second organic base, and the optional water to obtain the first mixture;

[0034]C, mixed the carbon point solution obtained by step A with the first mixture obtained by step B, and hydrolyzed at 20 to 100 ° C for 0.1 to 12 hours to obtain a second mixture;

[0035]D. The second mixture obtained by ste...

Example Embodiment

[0057]Example 1

[0058]Add 950 mL resistivity in the beaker 18MΩ · cm-1Ultra-pure water, then add 50 g of 10% by weight of tetraethylene hydroxide solution to form an electrolyte containing tetraethylene hydroxide, an anode graphite (length 30 cm) and a cathode granular (10 mm length is 30 cm) placed thereto, the distance between the anode graphite rod and the cathode graphite bar is held at 10 cm, connect the anode graphite rod to the positive electrode of the DC power source, and the negative electrode of the cathode graphite and the DC power supply, applied 20V The voltage was electrolyte for 3 days, and the obtained electrolytic solution was concentrated to obtain a carbon dot solution having a concentration of 0.5 mg / ml of the carbon dot; 2.2.5 g of n-ethyl silicate, titanate 1.1G, four The propylammonium hydroxide (25% aqueous solution) 7 g and deionized water 50 g is mixed to obtain a first mixture, and 10 g of the aforementioned carbon dot solution 10g is added to the aforem...

Example Embodiment

[0059]Example 2

[0060]Add 995 ml of resistivity in the beaker 18MΩ · cm-1Ultra-pure water, then add 5 g of 10% by weight of the tetraethylene hydroxide solution to form 0.05% by weight of an electrolyte containing tetraethylene hydroxide, the anode graphite (10 mm length 30cm) and cathode graphite The rod (10 mm length is 30 cm) is placed therein, and the distance between the anode graphite rod and the cathode graphite bar is held at 30 cm, connect the anode graphite rod and the positive electrode of the DC power source and the negative electrode of the Cathode graphite and the DC power supply, and 60V The voltage is electrolyte for 2 days, and the obtained electrolytic solution was concentrated to give a carbon dot solution having a concentration of 0.5 mg / ml of a carbon dot; 2.2.5 g of tetraethyl silicate, tetraethyl titanate 1.1g, The tetrapropylene hydroxide (25% aqueous solution) 7 g and deionized water 50 g are mixed to obtain a first mixture, and the aforementioned carbon do...

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Abstract

The invention relates to a preparation method of a nano material and the nano material prepared by the method. The method comprises the following steps: a, preparing a carbon dot solution; b, uniformly mixing a silicon source, an active center source, organic alkali and optional water to obtain a first mixture; c, mixing the carbon dot solution with the first mixture for hydrolysis reaction to obtain a second mixture; and d, carrying out hydrothermal treatment on the second mixture, collecting a solid product, washing, drying and roasting to obtain the nano material. The nanomaterial disclosed by the invention has excellent catalytic activity in the oxidation reaction of phenol, and meanwhile, the catalytic stability and repeatability are relatively good.

Description

technical field [0001] The present disclosure relates to a nanometer material and a preparation method thereof. Background technique [0002] Similar to ordinary nanomaterials, carbon nanomaterials have special properties such as quantum size effects, small size effects, and macroscopic quantum tunneling effects in optics, electricity, and magnetism. In 2004, the fine carbon nanoparticles with a size less than 10nm discovered during the purification of single-walled carbon nanotubes by electrophoresis were named carbon dots for the first time, which is a new type of small-sized carbon nanomaterial. Due to its excellent fluorescent properties, carbon dots are also called fluorescent carbon dots. In just over ten years from the discovery of fluorescent carbon dots to their application, fluorescent carbon dots have become a new star in the carbon nano family. The materials for synthesizing fluorescent carbon dots are becoming more and more abundant, and the preparation method...

Claims

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Application Information

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IPC IPC(8): C01B32/15C09K11/65B01J21/18B01J35/10B82Y20/00
CPCC01B32/15C09K11/65B01J21/18B01J35/10B82Y20/00
Inventor 史春风康振辉黄慧王肖孙悦周赟杰
Owner CHINA PETROLEUM & CHEM CORP
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