Photocatalytic hydrogen production catalyst and preparation method thereof

A catalyst and photocatalysis technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as complex equipment and harsh preparation conditions, and achieve simple preparation methods, simple experimental conditions, and good photocatalysis The effect of hydrogen production activity

Active Publication Date: 2018-10-30
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But almost all of these methods require complex and expensive equipment or harsh preparation conditions

Method used

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  • Photocatalytic hydrogen production catalyst and preparation method thereof
  • Photocatalytic hydrogen production catalyst and preparation method thereof
  • Photocatalytic hydrogen production catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 8.64g urea and 0.370g boric acid (n 硼酸 :n 尿素 =1:24) was added to 40 ml of deionized water, stirred with a magnetic stirrer at room temperature for 30 minutes to dissolve it, and then the stirred mixture was dried in a 65°C oven for 24 hours, and then the resulting mixture was Move to a mortar and grind for 30 minutes, put the ground mixture into a 25ml alumina crucible, put it as a whole into a 50ml alumina crucible and cover it with aluminum silicate, and finally put 50ml of alumina Put the crucibles into 200ml alumina crucibles and cover them with copper oxide, set of three crucibles see figure 1 , and then heated in a microwave oven for 30 minutes to obtain hexagonal boron nitride with x being 1:24 and t being 30 minutes. Hydrogen production activity see figure 2 165.74μmol·h -1 g -1 ,and Figure 4 Compared with Comparative Example 1 and Comparative Example 2, the hydrogen production activity is obviously superior.

Embodiment 2

[0024] 8.64g urea and 0.370g boric acid (n 硼酸 :n 尿素 =1:24) was added into 40 ml of deionized water, stirred with a magnetic stirrer at room temperature for 30 minutes to dissolve it, then put the stirred mixture into an oven at 65°C for 24 hours, and then moved the resulting mixture to Grind in a mortar for 30 minutes, put the ground mixture into a 25ml alumina crucible, put it as a whole into a 50ml alumina crucible and cover it with aluminum silicate, and finally put the 50ml alumina crucible into into 200 ml alumina crucibles and cover them with copper oxide, set of three crucibles see figure 1 , and then heated in a microwave oven for 35 minutes to obtain hexagonal boron nitride with x being 1:24 and t being 35 minutes. Hydrogen production activity see figure 2 355.98μmol·h -1 g -1 ,and Figure 4 Compared with Comparative Example 1 and Comparative Example 2, the hydrogen production activity is obviously superior. XRD characterization pattern see Figure 5 , by com...

Embodiment 3

[0026] 8.64g urea and 0.370g boric acid (n 硼酸 :n 尿素 =1:24) into 40 ml of deionized water, stirred with a magnetic stirrer at room temperature for 30 minutes to dissolve, then put the stirred mixture into a 65°C oven for 24 hours, and then moved the resulting mixture to Grind in a mortar for 30 minutes, put the ground mixture into a 25ml alumina crucible, put it as a whole into a 50ml alumina crucible and cover it with aluminum silicate, and finally put the 50ml alumina crucible into into 200 ml alumina crucibles and cover them with copper oxide, set of three crucibles see figure 1 , and then heated in a microwave oven for 40 minutes to obtain hexagonal boron nitride with x being 1:24 and t being 40 minutes. Hydrogen production activity see figure 2 292.27μmol·h -1 g -1 ,and Figure 4 Compared with Comparative Example 1 and Comparative Example 2, the hydrogen production activity is obviously superior.

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Abstract

The invention discloses a photocatalytic hydrogen production catalyst and a preparation method thereof. The catalyst is h-BN(x, t), 1/6<=x<=1/48, 30min<=t<=50min, x is the proportion of boric acid tourea, and t is microwave heating time. The preparation method includes the steps: sufficiently dissolving the boric acid to the urea by the aid of deionized water, drying mixture into a drying oven, and transferring steamed samples into a mortar to grind the samples; transferring the grinded samples into an aluminum oxide crucible with the volume of 25 milliliters, placing the whole samples into an aluminum oxide crucible with the volume of 50 milliliters, covering the samples by aluminum silicate, placing the samples into an aluminum oxide crucible with the volume of 200 milliliters, coveringthe samples with copper oxide, transferring the samples into a microwave oven to heat the samples for 30-50 minutes to obtain a finished product. The catalyst has good photocatalytic hydrogen production activity and practical application prospects.

Description

technical field [0001] The invention relates to the technical field of photocatalytic hydrogen production materials, in particular to a photocatalytic hydrogen production catalyst and a preparation method thereof. Background technique [0002] Energy is an important material basis for the survival and development of human society. At present, the energy used by humans is mainly non-renewable energy based on fossil fuels. According to speculation, fossil energy mainly composed of oil, natural gas, and coal will be exhausted before 2050. At the same time, the SO produced during the use of fossil energy 2 , CO 2 Harmful gases such as harmful gases have caused a series of environmental problems such as acid rain and the greenhouse effect, and energy issues have become a huge obstacle to the sustainable development of society. Therefore, in order to realize the sustainable development of society, the development of clean, efficient and renewable new energy is imminent. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C01B3/02C01B21/064
CPCB01J27/24B01J35/004C01B3/02C01B21/064C01B2203/1041C01P2002/72
Inventor 何益明陈鹏飞陈志强邢平星
Owner ZHEJIANG NORMAL UNIVERSITY
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