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Foamy copper in-situ growth copper oxide/cuprous oxide photocatalytic material as well as preparation method and application thereof

A photocatalytic material and in-situ growth technology, applied in the field of photocatalysis, can solve the problem that powder photocatalysts are not easy to recycle

Pending Publication Date: 2021-10-26
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a copper foam in-situ growth copper oxide / cuprous oxide photocatalytic material and its preparation method and application in view of the deficiencies in the above-mentioned prior art. In Situ Synthesis of Copper Oxide Photocatalytic Thin Films to Solve the Problem of Difficult Recycling of Powder Photocatalysts

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  • Foamy copper in-situ growth copper oxide/cuprous oxide photocatalytic material as well as preparation method and application thereof
  • Foamy copper in-situ growth copper oxide/cuprous oxide photocatalytic material as well as preparation method and application thereof
  • Foamy copper in-situ growth copper oxide/cuprous oxide photocatalytic material as well as preparation method and application thereof

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preparation example Construction

[0037] The invention provides a method for preparing a copper oxide / cuprous oxide photocatalytic material grown in situ on foamed copper, comprising the following steps:

[0038] S1. Cut the foamed copper into flakes, put them in absolute ethanol, acetone, and deionized water for ultrasonic treatment, and soak in 0.1-1M hydrochloric acid for 5-20 minutes; obtain a cleaned foamed copper sheet;

[0039] S2, dissolving NaOH in deionized water to obtain solution A; adding NaCl to solution A to obtain solution B, the molar mass ratio of NaOH to NaCl is 1-5;

[0040] S3. Add 0.1-2 g / L of polyethylene glycol (PEG), a dispersant with a relative molecular mass of 400, to solution B to obtain solution C;

[0041] S4, adjust the output parameters of the three constant electrophoresis instrument, the control current is 5 ~ 30mA, the voltage is 5 ~ 50V, the inert electrode is used as the cathode, the foamed copper prepared in step S1 is used as the anode, and the solution C prepared in ste...

Embodiment 1

[0048] (1) Cut the foamed copper into a sheet-like structure, put it into absolute ethanol, acetone, and deionized water for ultrasonic treatment for 5 minutes, and soak in 1.0M hydrochloric acid for 5 minutes to obtain some clean foamed copper;

[0049] (2) 1M NaOH was dissolved in 300ml deionized water to obtain solution A;

[0050] (3) Dissolve 2.5M NaCl in solution A, stir for 20 min to obtain solution B containing NaOH and NaCl, then add 0.1 g / L PEG with a relative molecular mass of 400 to solution B and continue stirring for 30 min to obtain solution C.

[0051] (4) Adjust the output parameters of the three-constant electrophoresis instrument, use a constant current output of 10mA, use graphite as the cathode, foam copper as the anode, solution C as the electrolyte, and anodize for 10 minutes. Product D was obtained after repeated washing with deionized water for anodic oxidation;

[0052] (5) Place the product D in a muffle furnace, anneal at 200°C, raise the temperatu...

Embodiment 2

[0054] (1) Cut the foamed copper into a sheet-like structure, put it into absolute ethanol, acetone, and deionized water for ultrasonic treatment for 5 minutes respectively, and soak in 1M hydrochloric acid for 5 minutes to obtain some clean foamed copper;

[0055] (2) 1M NaOH was dissolved in 300ml deionized water to obtain solution A;

[0056] (3) Dissolve 2.5M NaCl in solution A, stir for 20 min to obtain solution B containing NaOH and NaCl, then add 0.5 g / L PEG with a relative molecular mass of 400 to solution B and continue stirring for 30 min to obtain solution C.

[0057] (4) Adjust the output parameters of the three-constant electrophoresis instrument, with a constant current output of 10mA, graphite as the cathode, foamed copper as the anode, solution C as the electrolyte, and anodize for 30 minutes. Product D was obtained after repeated washing with deionized water for anodic oxidation;

[0058] (5) Place the product D in a muffle furnace, anneal at 250°C, raise the...

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Abstract

The invention discloses a foamy copper in-situ growth copper oxide / cuprous oxide photocatalytic material as well as a preparation method and application thereof. The preparation method comprises the following steps of dissolving NaOH in deionized water to obtain a solution A, adding NaCl into the solution A to obtain a solution B, and adding a dispersing agent into the solution B to obtain a solution C, taking a foam copper sheet as an anode, taking an inert electrode as a cathode, taking the solution C as electrolyte, enabling the anode to be subjected to oxidation treatment, then using deionized water for repeatedly washing the foam copper sheet subjected to anodic oxidation, and acquiring a product D attached with a black active substance, and annealing the product D to obtain the foamy copper in-situ growth copper oxide / cuprous oxide photocatalytic material. The phase-controllable copper oxide / cuprous oxide photocatalytic film material is obtained, the microtopography of the material is regulated and controlled from coexistence of nanorods and nanoparticles to regulation and control of the nanoparticles, and the light absorption and photocatalytic activity of the photocatalytic film are regulated and controlled by controlling the phase and the topography.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, in particular to a copper oxide / cuprous oxide long (Cu 2 O / CuO) photocatalytic material and its preparation method and application. Background technique [0002] In the past ten years, with the rapid development of my country's industry. As a big country with the highest total dye production in the world, the pollution problems caused by dye wastewater, organic chemical industry and other industries have become increasingly acute. Dye wastewater has become one of the main factors threatening our ecological environment and human life and health. The treatment of dye wastewater is imminent, so the development of environmentally friendly dye wastewater treatment is a very important topic. In recent years, copper oxide has been widely used in lithium-ion batteries, sensors, supercapacitors, photocatalytic hydrogen production and other fields. This is mainly due to the superior narrow bandg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72B01J37/34B01J37/06C02F1/30C02F101/30
CPCB01J23/72B01J37/348B01J37/06C02F1/30C02F2101/30C02F2101/308C02F2305/10B01J35/59B01J35/39
Inventor 杨艳玲和茹梅薛帆刘佳隽郭文宁孙宜孟李道辉叶晓慧锁国权冯雷侯小江张荔
Owner SHAANXI UNIV OF SCI & TECH
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