Copper carbonate loaded titanium dioxide ultraviolet photocatalyst and preparation method thereof

A titanium dioxide and photocatalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of reducing the cost of raw materials, scarcity, and high cost, and achieve the effect of low energy consumption and cost

Inactive Publication Date: 2015-01-28
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves the problem of expensive and scarce co-c...

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  • Copper carbonate loaded titanium dioxide ultraviolet photocatalyst and preparation method thereof
  • Copper carbonate loaded titanium dioxide ultraviolet photocatalyst and preparation method thereof

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Embodiment 1

[0023] A preparation method of titanium dioxide ultraviolet photocatalyst supported by copper carbonate, comprising the following steps:

[0024] 1) Take by weighing 1g of titanium dioxide, 0.2g of sodium carbonate and 0.001g of copper nitrate according to the above weight fraction ratio, and set aside;

[0025] 2) dissolving the sodium carbonate obtained in step 1) in water to obtain an aqueous sodium carbonate solution with a molar concentration of 0.1 to 1.0 mmol / L;

[0026] 3) dispersing titanium dioxide into the aqueous sodium carbonate solution obtained in step 2) to obtain a suspension;

[0027] 4) Slowly add copper nitrate to the suspension obtained in step 3), stir evenly, wash and stand still, filter with filter paper, and vacuum dry at a temperature of 60-100°C for 4-8 hours to obtain titanium dioxide supported by copper carbonate Ultraviolet light photocatalyst 1; wherein, the copper carbonate is supported on the surface of titanium dioxide, and the weight percent...

Embodiment 2

[0029] The preparation method of this embodiment and embodiment 1 is basically the same, the difference is:

[0030] Copper carbonate-supported titanium dioxide ultraviolet photocatalyst 2, said photocatalyst comprises 1 part of titanium dioxide, 0.5 part of potassium carbonate, and 0.005 part of copper sulfate according to the ratio of raw materials. Copper carbonate accounts for 0.48% by weight of the photocatalyst.

Embodiment 3

[0032] The preparation method of this embodiment and embodiment 1 is basically the same, the difference is:

[0033] Copper carbonate-supported titanium dioxide ultraviolet light photocatalyst 3, said photocatalyst comprises 1 part of titanium dioxide, 0.3 part of sodium carbonate, and 0.009 part of copper nitrate in terms of the weight ratio of raw materials. Copper carbonate accounts for 0.80% by weight of the photocatalyst.

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Abstract

The invention discloses a copper carbonate loaded titanium dioxide ultraviolet photocatalyst and a preparation method thereof. The photocatalyst comprises the following raw materials in parts by weight: 1 part of titanium dioxide, 0.2-0.5 part of inorganic carbonate and 0.001-0.5 part of inorganic copper salt. The method comprises the following steps: firstly, dissolving inorganic carbonate in water to obtain an inorganic carbonate aqueous solution with the molar concentration of 0.1-1.0 mmol/L; secondly, dispersing titanium dioxide in the inorganic carbonate aqueous solution to obtain suspension liquid; finally, slowly adding the inorganic copper salt into the suspension liquid obtained in the step (3), uniformly stirring, washing and standing, filtering by filter paper, and drying in vacuum at 60-100 DEG C for 4-8 hours to obtain the copper carbonate loaded titanium dioxide ultraviolet photocatalyst. Compared with a conventional load technology, the loads of transition metal oxides all need to be electrically calcined, and in the method, the preparation cost does not exist and the electrical energy does not need to be used; the preparation cost of the photocatalyst meets the condition that the cost of each 500 g of the photocatalyst is increased by less than 0.5 yuan on the basis of the cost of titanium dioxide.

Description

technical field [0001] The invention relates to an ultraviolet photocatalyst, in particular to a copper carbonate-supported titanium dioxide ultraviolet photocatalyst and a preparation method thereof. Background technique [0002] Hydrogen has many advantages such as clean energy, high efficiency, and convenient storage and transportation. It is known as the "oil of the future" and has attracted great attention from all over the world. However, the traditional hydrogen production method needs to consume a huge amount of conventional energy, making hydrogen energy too expensive, which greatly limits the promotion and application of hydrogen energy. Until 1972, Fujishima and Honda [1] The discovery of the phenomenon of photocatalytic water splitting on titanium dioxide (TiO2) electrodes makes it one of the most ideal and promising means to use solar photocatalytic water splitting to produce hydrogen among many means of hydrogen energy development. [0003] Although photocata...

Claims

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Application Information

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IPC IPC(8): B01J27/232
Inventor 李丽坤陈俊孚毛新平黄建阳刘继雄薛改凤周桂峰张垒刘孟卢丽君王丽娜康凌晨付本全刘瑛刘尚超刘璞
Owner 武汉钢铁有限公司
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