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Synthesis method of nitrogen-doped carbon-coated Cu/TiO2 interface structure

A synthesis method and interface structure technology, which are applied in chemical instruments and methods, chemical/physical processes, catalyst activation/preparation, etc., to achieve good application prospects and high photocatalytic activity.

Pending Publication Date: 2020-07-24
XUZHOU NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, incorporating all of the above mentioned multiple modifications into TiO 2 remains a huge challenge

Method used

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  • Synthesis method of nitrogen-doped carbon-coated Cu/TiO2 interface structure
  • Synthesis method of nitrogen-doped carbon-coated Cu/TiO2 interface structure
  • Synthesis method of nitrogen-doped carbon-coated Cu/TiO2 interface structure

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Experimental program
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Embodiment

[0024] Step 1: Synthesis of heterometallic cluster precursors.

[0025] Copper(I) chloride (49.5 mg, 0.5 mmol), 1,5-pentanedioic acid (25.5 mg, 0.2 mmol) and benzoic acid (305.5 g, 2.5 mmol) were dissolved in acetonitrile (5 mL) and treated by sonication Mixing and standing at room temperature gave a clear solution. Then acetic acid (5 μL) and Ti(OiPr) 4 (0.25mL, 0.75mmol) was added to the above mixed solution. The above mixed solution was transferred to a polytetrafluoroethylene autoclave, heated to the target reaction temperature of 80° C. and the required reaction time of 33 h. After slow cooling to room temperature, the heterometallic cluster precursor was obtained. figure 1 a and 1b are crystal structure diagrams of the heterometallic cluster precursor prepared in this example observed from two different directions. Lattice guest CH is removed for clarity 3 CN. Copper: purple, titanium: cyan, oxygen: red, carbon: black, 1c is the X-ray powder diffraction pattern (XR...

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Abstract

The invention relates to a synthesis method of a nitrogen-doped carbon-coated Cu / TiO2 interface structure. The synthesis method comprises the following steps: dissolving copper chloride, 1, 5-glutaricacid and benzoic acid in an organic solvent, and standing to obtain a clear solution; adding acetic acid and Ti (OiPr) 4 into the clarified solution to obtain a mixed solution, transferring the mixedsolution into a reaction kettle, heating to react for a period of time, and cooling to obtain a hetero-metal cluster precursor; and calcining the hetero-metal cluster precursor in a protective atmosphere for a period of time to obtain the nitrogen-doped carbon-coated Cu / TiO2 interface structure nano material. The synthesis method is simple and easy to implement, the hetero-metal cluster precursoris synthesized by virtue of a hydrothermal synthesis method, accurate combination of Cu and Ti elements is realized, and then the nitrogen-doped carbon-coated Cu / TiO2 interface structure composite material is prepared by virtue of in-situ high-temperature calcination. The prepared nitrogen-doped carbon-coated Cu / TiO2 interface structure material belongs to a metal and semiconductor composite photocatalyst and has higher photocatalytic activity in comparison with a TiO2 single catalyst and can be used as a new photocatalytic material and has a better application prospect.

Description

technical field [0001] The invention relates to the synthesis of a novel nanomaterial, in particular to a Cu / TiO coated with nitrogen-doped carbon 2 Synthetic methods of interfacial structures. Background technique [0002] Photocatalysis using semiconductors as photocatalysts has shown high potential in solving environmental and energy problems, and is one of the effective solutions to environmental pollution and energy shortage. However, the biggest challenges are the cost of photocatalysts, photocatalytic efficiency and long-term cycle stability. Although TiO 2 The low cost and good stability of photocatalysts have been widely studied in photocatalytic reactions. However, TiO 2 Applications in practical photocatalytic processes often suffer from photoinduced recombination of electrons and holes, resulting in poor photocatalytic activity. [0003] Therefore, how to improve the separation efficiency of photogenerated charges and improve the catalytic activity of cataly...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J37/10B01J37/08B01J35/08
CPCB01J27/24B01J37/10B01J37/08B01J35/51B01J35/39
Inventor 韩锡光袁玉胜
Owner XUZHOU NORMAL UNIVERSITY
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