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Preparation method of layered CdS/monoamine hybrid material and application of layered CdS/monoamine hybrid material in hydrogen production by reforming under photocatalysis of ethanol

A hybrid material, reforming hydrogen production technology, applied in the field of photocatalytic materials, can solve the problems of unsynthesized and rarely reported, and achieve the effect of simple operation, low price, and efficient dispersion

Active Publication Date: 2019-08-02
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, a series of [CdE·0.5en] hybrid materials (E=S, Se, Te; en=ethylenediamine) synthesized in the diamine system, and two-layer hybrid materials obtained in the monoamine system have been reported. material [(MQ) 2 (L)] (M=Zn, Cd; Q=S, Se, Te; L=monoamine), but other layers of cadmium sulfide / organic amine hybrid materials have not yet been synthesized
There are many studies on cadmium sulfide photocatalytic decomposition of water to produce hydrogen, but there are few reports on the research on photocatalytic alcohol reforming to produce hydrogen

Method used

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  • Preparation method of layered CdS/monoamine hybrid material and application of layered CdS/monoamine hybrid material in hydrogen production by reforming under photocatalysis of ethanol
  • Preparation method of layered CdS/monoamine hybrid material and application of layered CdS/monoamine hybrid material in hydrogen production by reforming under photocatalysis of ethanol
  • Preparation method of layered CdS/monoamine hybrid material and application of layered CdS/monoamine hybrid material in hydrogen production by reforming under photocatalysis of ethanol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 1.0mmol of anhydrous cadmium chloride and 1.2mmol of sulfur powder into a 25ml polytetrafluoroethylene liner, and then add 18mL of n-butylamine (ba), n-hexylamine (ha) and n-octylamine (oa) solvents, magnetically Stir evenly, put it into a reaction kettle, place it in an oven, and react at 80°C for 2 days. After stopping the reaction, cool it down to room temperature naturally; filter the supernatant from the product, and wash the remaining solid matter with absolute ethanol for 3 times (8000r / min, 2min), deionized water centrifugal washing 2 times (8000r / min, 2min), the solid matter after the two alternate centrifugation washing, drying in the vacuum oven of 60 ℃ obtains two layers of cadmium sulfide / monoamine hybrid material [( CdS) 2 • (L)] (L = ba, ha, oa) photocatalyst.

[0032] For the two-layer hybrid material prepared above [(CdS) 2 ·(L)] (L=ba, ha, oa) is characterized by figure 1 It can be seen that the 001 series of diffraction peaks in the powder X-ra...

Embodiment 2

[0036] (1) Add 1.0mmol of anhydrous cadmium chloride and 1.5mmol of sulfur powder into a 25ml liner, then add 18mL of n-butylamine, and react at 80°C for 4 days. Other experimental steps are the same as in Example 1 to obtain four layers of cadmium sulfide / butyl Amine hybrid materials [(CdS) 4 · (ba)] photocatalyst.

[0037] (2) Add 1.0mmol of anhydrous cadmium chloride and 1.8mmol of sulfur powder into a 25ml liner, then add 18mL of n-hexylamine, and react at 80°C for 3 days. Other experimental steps are the same as in Example 1, and four layers of cadmium sulfide / hexylamine are obtained. Hybrid materials [(CdS) 4 · (ha)] photocatalyst.

[0038] (3) Add 1.0mmol of anhydrous cadmium chloride and 2.0mmol of sulfur powder into a 25ml liner, then add 18mL of n-octylamine, and react at 80°C for 2 days. Amine hybrid materials [(CdS) 4 · (oa)] photocatalyst.

[0039] For the above-mentioned four-layer hybrid material [(CdS) 4 (L)] (L = ba, ha, oa) for structural characterizati...

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Abstract

The invention discloses a preparation method of a layered CdS / monoamine hybrid material and an application of the layered CdS / monoamine hybrid material in hydrogen production by reforming under photocatalysis of ethanol. The layered CdS / monoamine hybrid material can be prepared in a controllable manner with a solvothermal method. The hybrid material has a unique inorganic / organic interlayer structure, organic monoamine molecular layers arranged orderly in the vertical direction on a laminate can be rapidly enriched in an ethanol system, efficient dispersion is realized, so that ethanol molecules conveniently enter the interlayer to approach a [CdS] inorganic laminate, and a photocatalysis reaction is triggered. When the content of the CdS / monoamine hybrid material is 50 mg, the highest photocatalytic hydrogen production amount in the ethanol system is 10231.5 mu mol.g<-1> and is 40 times higher than 256.1 mu mol.g<-1> of inorganic matter CdS, and the CdS / monoamine hybrid material has good photocatalysis activity, stability and repeatability.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic materials, and in particular relates to a preparation method of a layered cadmium sulfide / monoamine hybrid material and its application to hydrogen production by photocatalytic alcohol reforming. Background technique [0002] Environmental pollution and energy shortage are the major problems faced by human beings in the 21st century and need to be solved urgently. Photocatalytic technology has become an ideal energy production technology because of its unique advantage of directly using solar energy as a light source to drive reactions. Hydrogen energy, as an efficient and clean secondary energy source, can minimize human dependence on fossil fuels, thereby promoting the global economy and reducing environmental pollution. Photocatalytic alcohol reforming hydrogen production is a clean and sustainable green hydrogen production technology. Ethanol has the advantages of non-toxicity, easy sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26C01B3/32B01J35/02B01J35/00
CPCB01J31/26C01B3/326C01B2203/0227C01B2203/1088C01B2203/1229B01J35/00B01J35/30B01J35/39
Inventor 魏朔崔晓艳胡美琪贾一鸣
Owner BEIJING NORMAL UNIVERSITY