Preparation method and application of copper selenide nano material based on eggshell template

A technology of nano-materials and egg shells, applied in the field of nano-materials, can solve the problems of complicated operations, high processing costs, and low efficiency, and achieve the effects of high cost-effectiveness, simple preparation process, and simple method steps

Inactive Publication Date: 2019-05-21
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high cost, complicated operation and low efficiency of the traditional treatment process of organic waste water, the present invention pro

Method used

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  • Preparation method and application of copper selenide nano material based on eggshell template
  • Preparation method and application of copper selenide nano material based on eggshell template
  • Preparation method and application of copper selenide nano material based on eggshell template

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Embodiment 1

[0031] A copper selenide nanomaterial based on an eggshell template, and a preparation method thereof, specifically comprising the following steps:

[0032] (1) Egg shell pretreatment: collect discarded egg shells, wash the egg shells repeatedly with deionized water, soak in clean water at room temperature for 2 hours, dry naturally, and set aside.

[0033] (2) Preparation of carrier egg shells: crush the egg shells processed in step (1) with a pulverizer, sieve, take 5 g of sieved egg shell powder and soak them in NaoH solution with a concentration of 10% by volume. 20 min, and then washed three times with deionized water, and then dried to obtain carrier egg shells.

[0034] (3) Copper ion adsorption: Take 2 g of carrier egg shells obtained in step (2) and immerse in 50 ml of 5 mM copper nitrate (Cu(NO 3 ) 2 ·3H 2 O) solution, soaked at room temperature for 5 h, and the copper ions were adsorbed onto the eggshell carrier.

[0035] (4) Reduction of sodium selenite: Weigh ...

Embodiment 2

[0039] A copper sulfide nanomaterial based on an eggshell template, and a preparation method thereof, specifically comprising the following steps:

[0040] (1) Egg shell pretreatment: collect discarded egg shells, wash the egg shells repeatedly with deionized water, soak in clean water at room temperature for 2 hours, dry naturally, and set aside;

[0041] (2) Preparation of carrier egg shells: crush the egg shells processed in step (1) with a pulverizer, sieve, take 5 g of sieved egg shell powder and soak them in NaoH solution with a concentration of 10% by volume. 20 mi, and then washed with deionized water 3 times, dried to obtain carrier egg shells;

[0042] (3) Copper ion adsorption: take 2 g of carrier egg shells obtained in step (2) and immerse in 50 ml of 10 mM copper nitrate (Cu(NO 3 ) 2 ·3H 2 (0) solution, soaked at room temperature for 5 h, the copper ions are adsorbed onto the eggshell carrier;

[0043] (4) Reduction of sodium selenite: Weigh 0.80 g of sodium s...

Embodiment 3

[0047] A copper sulfide nanomaterial based on an eggshell template, and a preparation method thereof, specifically comprising the following steps:

[0048] (1) Egg shell pretreatment: collect discarded egg shells, wash the egg shells repeatedly with deionized water, soak in clean water at room temperature for 2 hours, dry naturally, and set aside;

[0049] (2) Preparation of carrier egg shells: crush the egg shells processed in step (1) with a pulverizer, sieve, take 5 g of sieved egg shell powder and soak them in NaoH solution with a concentration of 10% by volume. 20 mi, and then washed with deionized water 3 times, dried to obtain carrier egg shells;

[0050] (3) Copper ion adsorption: Take 2 g of carrier egg shells obtained in step (2) and immerse in 50 ml of 15 mM copper nitrate (Cu(NO 3 ) 2 ·3H 2 (0) solution, soaked at room temperature for 5 h, the copper ions are adsorbed onto the eggshell carrier;

[0051] (4) Reduction of sodium selenite: Weigh 1.29 g of sodium s...

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Abstract

The invention discloses a preparation method and application of a copper selenide nano material based on an eggshell template, and belongs to the technical field of nano materials. The composite copper selenide nano material is prepared by using discarded eggshells as the template, loading copper ions on the surfaces of the eggshells and combining selenium ions in situ to form copper selenide nanoparticles. The preparation method comprises the following steps of eggshell pretreatment; preparation of carrier eggshells; copper ion adsorption; reduction of sodium selenite; in-situ combination ofthe copper ions with the selenium ions to form the copper selenide nanoparticles; preparation of the composite copper selenide nano material loaded on the eggshells. The composite copper selenide nanomaterial has high catalytic degradation performance for organic dyes. The preparation process is simple and easy, a material source is rich, and the catalytic effect is excellent.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a copper selenide nanomaterial based on an eggshell template, a preparation method and an application thereof. Background technique [0002] As we all know, water is a very precious natural resource and an essential substance for human life. With the rapid development of world industry and the continuous increase of population, the human demand for water is increasing day by day. China is a country short of water resources. my country's per capita water resources (fresh water) only account for 1 / 5 of the world's, ranking 88th in the world. At the same time, human beings' already limited water resources are increasingly polluted. In 1999, the total discharge of domestic industrial and urban domestic wastewater was 40.1 billion tons. At present, China's industrial wastewater discharge volume is large and the pollution concentration is high. There are many reason...

Claims

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Application Information

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IPC IPC(8): B01J27/057B01J37/16B82Y30/00B82Y40/00C02F1/70C02F101/30C02F101/34C02F101/38
Inventor 杨大鹏施伟章刘明焕
Owner QUANZHOU NORMAL UNIV
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