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a bi 2 wxmo 1‑x o 6 Photocatalytic reduction of CO by solid solution catalytic materials under visible light conditions 2 Process for producing methanol and ethanol

A technology of bi2wxmo1-xo6 and catalytic materials, applied in the field of photocatalysis, can solve the problems of low photoelectric conversion rate and poor catalytic effect, and achieve high photocatalytic activity, low cost and short time consumption

Active Publication Date: 2017-12-29
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

But its biggest disadvantage is that TiO 2 It only works on ultraviolet light (wavelength < 400 nm) which accounts for less than 5% of solar energy. Under the condition of visible light accounting for 43% of solar energy, the photoelectric conversion rate is low and the catalytic effect is poor.
But there is no information about Bi 2 W x Mo 1-x o 6 For photocatalytic reduction of CO 2 Reports on the Preparation of Hydrocarbon Fuels such as Methanol and Ethanol

Method used

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  • a bi <sub>2</sub> wxmo <sub>1‑x</sub> o <sub>6</sub> Photocatalytic reduction of CO by solid solution catalytic materials under visible light conditions <sub>2</sub> Process for producing methanol and ethanol
  • a bi <sub>2</sub> wxmo <sub>1‑x</sub> o <sub>6</sub> Photocatalytic reduction of CO by solid solution catalytic materials under visible light conditions <sub>2</sub> Process for producing methanol and ethanol
  • a bi <sub>2</sub> wxmo <sub>1‑x</sub> o <sub>6</sub> Photocatalytic reduction of CO by solid solution catalytic materials under visible light conditions <sub>2</sub> Process for producing methanol and ethanol

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Experimental program
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Effect test

Embodiment 1

[0027] This embodiment is Bi 2 W 0.25 Mo 0.75 o 6 The preparation method of the solid solution material mainly includes the following steps: Weigh bismuth nitrate (790 mg), sodium molybdate (0.363 mg), sodium tungstate (165 mg), and sodium sulfate (100 mg) respectively, and dissolve them in 10 mL of 1 M HNO 3 In the solution, after magnetic stirring for 30 min, a colorless clear solution of bismuth nitrate, a light yellow clear solution of sodium molybdate, a yellow sodium tungstate suspension solution and a transparent sodium sulfate solution were obtained; the above four solutions were mixed, and the obtained suspension The turbid liquid was transferred to a 100 mL hydrothermal reaction kettle, at 180 o Under the condition of C, react for 24 h, and cool to room temperature after the reaction; o Oven drying at C for 8 h to obtain Bi 2 W 0.25 Mo 0.75 o 6 solid solution. By adjusting the amount of W / Mo added, different proportions of Bi can be obtained 2 W x Mo 1-x...

Embodiment 2

[0029] This embodiment is a part of Bi 2 W x Mo 1-x o 6 Performance evaluation of solid solution material photocatalysts.

[0030] solid solution material

Embodiment 3

[0032] Lighting time (hours)

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Abstract

The invention involves the field of photocatalytic technology, which mainly provides a BI 2 W x Mo 1‑x O 6 Light solid solution catalytic materials under visible light catalytic restore CO 2 Methods for preparing methanol and ethanol.It is characterized by: BI 2 W x Mo 1‑x O 6 The solid -soluble photocatalyst is based on nitrate, sodium molybdenonate, and sodium tungstenate, and sodium sulfate as the appearance regulator.The advantage of the present invention is; this catalyst can be used for visible light catalytic reduction CO 2 Prepare methanol and ethanol.This photocatalyst is to CO 2 Strong adsorption ability, high optical quantum efficiency, and promoting CO 2 Exchanges of emission reduction, development of fossil fuels, and efficient use of solar energy have broad application prospects.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, and mainly provides a Bi 2 W x Mo 1-x o 6 Photocatalytic reduction of CO by solid solution materials 2 Process for the production of methanol and ethanol. Background technique [0002] At present, with the rapid development of industry, environmental problems are becoming more and more serious, among which CO 2 The greenhouse effect caused by excessive emissions has become one of the most concerned environmental issues in recent years. But on the other hand, CO 2 It is the most extensive, non-toxic, cheap and renewable C1 resource on earth. If CO 2 Efficient conversion into useful chemicals can achieve both CO 2 It can effectively reduce the greenhouse effect, realize the recycling of carbon resources, and alleviate the "carbon source crisis" caused by the excessive use of fossil fuels. [0003] Over the years, on CO 2 There have been a lot of research and exploration on the con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/31C07C31/04C07C31/08C07C29/15
CPCY02P20/50Y02P20/52
Inventor 代威力罗胜联徐海罗旭彪涂新满
Owner NANCHANG HANGKONG UNIVERSITY
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