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CuO composite photocatalytic nanomaterial and efficient preparation method thereof

A composite photocatalysis and nanomaterial technology, applied in the field of CuO composite photocatalytic nanomaterials and their efficient preparation, can solve the problems of uneven distribution of CuO particles, long preparation period, large energy consumption, etc., and achieves increased photothermal response rate, The effect of low cost and high thermal conductivity

Pending Publication Date: 2021-06-29
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the characteristics of current CuO composite photocatalytic nanomaterials, such as long preparation period, large energy consumption, uneven distribution of CuO particles and easy agglomeration, the present invention provides a CuO composite photocatalytic nanomaterial and a high-efficiency preparation method thereof. The CuO composite photocatalytic nanomaterial The material has the characteristics of high light absorption rate, high thermal conductivity and high photocatalytic efficiency.

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  • CuO composite photocatalytic nanomaterial and efficient preparation method thereof
  • CuO composite photocatalytic nanomaterial and efficient preparation method thereof
  • CuO composite photocatalytic nanomaterial and efficient preparation method thereof

Examples

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Embodiment 1

[0035] A CuO composite photocatalytic nanomaterial, with graphene oxide (GO) as the carrier and CuO as the loading material, is prepared by a step-by-step microwave hydrothermal method. The specific preparation method includes the following steps:

[0036] (1) Pretreatment: Disperse 80mg of GO in 60ml of deionized water according to the weight and place it in an ultrasonic disperser at 30°C for 2 hours to obtain a GO dispersion;

[0037] 400mg Cu(AC) 2 , 12mg NaOH and 40mg CTAB were added to 10ml deionized water and stirred evenly for later use to obtain a mixed solution;

[0038] Add the mixed liquid dropwise to the GO dispersion liquid and heat it in a mixed water bath at 45°C for 40 minutes, with a stirring speed of 600-800rmp to prepare a precursor solution;

[0039] (2) Microwave hydrothermal method: Add the prepared precursor solution into a polychlorotetrafluoroethylene reactor, place the reactor in a microwave hydrothermal synthesizer, heat it to 160°C for 30 minutes...

Embodiment 2

[0044] A CuO composite photocatalytic nanomaterial, with graphene oxide (GO) as the carrier and CuO as the loading material, is prepared by a step-by-step microwave hydrothermal method. The specific preparation method includes the following steps:

[0045] (1) Pretreatment: Disperse 80mg of GO in 60ml of deionized water according to the weight and place it in an ultrasonic disperser at 30°C for 2 hours to obtain a GO dispersion;

[0046] 200mg Cu(AC) 2 , 8mg NaOH and 20mg CTAB were added to 5ml deionized water and stirred evenly for later use to obtain a mixed solution;

[0047] The mixed liquid was added dropwise to the GO dispersion liquid and heated in a mixed water bath at 45° C. for 40 min at a stirring speed of 600-800 rpm to obtain a precursor solution.

[0048] (2) Microwave hydrothermal method: Add the prepared precursor solution into a polychlorotetrafluoroethylene reaction kettle, place the reaction kettle in a microwave hydrothermal synthesizer with a microwave f...

Embodiment 3

[0052] A CuO composite photocatalytic nanomaterial, with graphene oxide (GO) as the carrier and CuO as the loading material, is prepared by a step-by-step microwave hydrothermal method. The specific preparation method includes the following steps:

[0053] (1) Pretreatment: Disperse 80mg of GO in 60ml of deionized water according to the weight and place it in an ultrasonic disperser at 30°C for 2 hours to obtain a GO dispersion;

[0054] 400mg Cu(AC) 2 , 15mg NaOH and 40mg CTAB were added to 10ml deionized water and stirred evenly for later use to obtain a mixed solution;

[0055] The mixed liquid was added dropwise to the GO dispersion liquid and heated in a mixed water bath at 40° C. for 30 min with a stirring speed of 600-800 rpm to obtain a precursor solution.

[0056] (2) Microwave hydrothermal method: Add the prepared precursor solution into a polychlorotetrafluoroethylene reaction kettle, place the reaction kettle in a microwave hydrothermal synthesizer with a microwa...

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Abstract

The invention discloses a CuO composite photocatalytic nanomaterial and an efficient preparation method thereof. According to the invention, graphene oxide (GO), carboxylated multi-walled carbon nanotubes (C-MWCNT) and the like are used as carriers, CuO is used as a loading material, a mass ratio of the carrier material to the CuO carrier is 2: (1-8), CuO nanoparticles are converged into nanoparticle groups which are then uniformly attached to the surface of the carrier, and thus, a stable composite structure is formed. The photocatalytic material with high light absorptivity has the characteristics of high heat conductivity, high photocatalytic efficiency and the like; and the step-by-step hydrothermal method adopted in the invention is simple and efficient in preparation and provides a novel method for batch preparation of efficient photocatalytic materials.

Description

technical field [0001] The invention relates to a CuO composite photocatalytic nanometer material and a high-efficiency preparation method thereof. The material belongs to the field of energy and is applied to the fields of solar photocatalysis and thermal energy storage. Background technique [0002] With the development of industrial technology, the accompanying industrial pollution has become the focus of current attention. Semiconductor catalytic technology plays a key role in environmental governance and water purification. Photocatalysis is an emerging technology that converts harmless solar energy into chemical energy. Photocatalyst absorbs light energy to decompose water into H 2 and O 2 , can also degrade organic pollutants in the environment. After more than 40 years of development, researchers have mastered a variety of effective catalysts that can be applied to photocatalytic decomposition. Among them, Cu is cheap and has plasmon resonance effect, which can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72B01J35/02B01J35/00
CPCB01J23/72B01J35/40B01J35/39
Inventor 程晓敏季维李元元
Owner WUHAN UNIV OF TECH
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