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Preparation device and method for beta-C3N4 precursor

A technology of -C3N4 and precursors, which is applied to the device and preparation field of preparing β-C3N4 precursors, can solve the problems of cumbersome purification operations, high synthesis costs, and low yields, and achieve high yields, simple device structures, and reduced production costs. cost effect

Inactive Publication Date: 2019-02-01
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

However, the synthesis cost of the precursor g-C3N4 is high and the output is low, and the purification operation is relatively cumbersome. Therefore, the present invention provides a device with simple structure and convenient preparation method for the preparation of β-C 3 N 4 Precursor device and preparation method

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  • Preparation device and method for beta-C3N4 precursor
  • Preparation device and method for beta-C3N4 precursor
  • Preparation device and method for beta-C3N4 precursor

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Embodiment

[0035] A method for preparing β-C 3 N 4 Precursor devices such as figure 1 Said, including heating device 1, sample chamber 2, nitrogen gas inlet pipe 3 and gas outlet pipe 4, described sample chamber 2 is used for containing raw materials, and sample chamber 2 is arranged in heating device 1, and described heating device 1 is used for sample The chamber 2 is heated, the nitrogen gas inlet pipe 3 and the gas outlet pipe 4 pass through the heating device 1 respectively, and the nitrogen gas inlet pipe 3 and the gas outlet pipe 4 communicate with the interior of the sample chamber 2 respectively.

[0036] Specifically, the described method for preparing β-C 3 N 4 The precursor device also includes a tail gas treatment container 7 filled with water, and the mouth of the gas outlet pipe 4 is set in the water in the tail gas treatment container 7 .

[0037] Specifically, the sample compartment 2 includes a compartment body 6 and a compartment cover 5 , and the compartment cover...

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Abstract

The invention relates to the technical field of material synthesis, in particular to a preparation device and method for a beta-C3N4 precursor. The device includes a heating apparatus, a sample bin, anitrogen intake pipe and an air outlet pipe. The sample bin is used for holding raw materials, and is arranged in the heating apparatus, the heating apparatus is used for heating the sample bin, thenitrogen intake pipe and the air outlet pipe respectively pass through the heating apparatus, and the nitrogen intake pipe and the air outlet pipe are respectively communicated with the inside of thesample bin. The invention provides the preparation device and method for the beta-C3N4 precursor, the device is simple in structure, the preparation method is convenient, and the prepared beta-C3N4 precursor has high g-C3N4 yield, the experimental research cost of beta-C3N4 is effectively reduced, and a pure and high nitrogen content precursor is provided, therefore the device and method are of important significance for promoting the research and teaching of beta-C3N4.

Description

technical field [0001] The invention relates to the technical field of material synthesis, in particular to a method for preparing β-C 3 N 4 Precursor device and preparation method. Background technique [0002] In 1989, A.Y.Liu and M.L.Cohen based on β-Si 3 N 4 The crystal structure of β-C is theoretically predicted by the first-order pseudopotential band method under the local density of state approximation by replacing Si with C 3 N 4 (that is, carbon nitride) is a new covalent compound whose hardness is comparable to that of diamond but has not been found in nature. In 1996, Teter and Hemley calculated that C 3 N 4 There may be five structures, namely α phase, β phase, cubic phase, quasi-cubic phase and graphite-like phase. Except for the graphite-like phase, the hardness of the other four structural substances can be compared with that of diamond. [0003] Under the prediction of the theory, people try to synthesize this new low-density and high-hardness non-po...

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Application Information

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IPC IPC(8): C01B21/082
CPCC01B21/0605C01P2002/72
Inventor 蒋城露范茁宁张鹏飞王宇航金旭阳汪贻高秦涵刘其军刘福生常相辉樊代和
Owner SOUTHWEST JIAOTONG UNIV
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