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A kind of synthesis method and application of nano zinc cadmium sulfide with visible light catalytic activity

A nano-zinc sulfide, catalytically active technology, applied in cadmium sulfide, chemical instruments and methods, nanotechnology, etc., can solve the problems of long reaction time and high reaction temperature, and achieve the effects of short synthesis time, high purity and high yield

Inactive Publication Date: 2011-12-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of long reaction time and high reaction temperature in the existing preparation method of zinc cadmium sulfide. The present invention provides a synthesis method and application of nano zinc cadmium sulfide with visible light catalytic activity.

Method used

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  • A kind of synthesis method and application of nano zinc cadmium sulfide with visible light catalytic activity
  • A kind of synthesis method and application of nano zinc cadmium sulfide with visible light catalytic activity
  • A kind of synthesis method and application of nano zinc cadmium sulfide with visible light catalytic activity

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specific Embodiment approach 1

[0014] Specific embodiment one: present embodiment is a kind of synthesis method with visible light catalytic activity nano-zinc cadmium sulfide, it is realized by following steps: 1. Weigh Zn(Ac) 2 2H 2 O, Cd(Ac) 2 2H 2 O, thioacetamide (TAA) and sodium dodecylbenzenesulfonate (SDBS), control Zn(Ac) 2 2H 2 O and Cd(Ac) 2 2H 2 The molar ratio of O is 1:1.5, Zn(Ac) 2 2H 2 The molar ratio of O to thioacetamide is 1:5, Zn(Ac) 2 2H 2 The molar ratio of O to sodium dodecylbenzenesulfonate is 1: 0.023~0.0347; 2. The Zn(Ac) taken in step 1 2 2H 2 O and Cd(Ac) 2 2H 2 Add O into the alcohol solvent, stir and dissolve to obtain solution A, then add the thioacetamide and sodium dodecylbenzenesulfonate weighed in step 1 into the alcohol solvent, stir and dissolve, and then ultrasonically disperse for 5-10 minutes to obtain solution B. Then mix solution A and solution B to obtain a mixed solution; 3. React the mixed solution under normal pressure at 64-66°C and 100-200W for 10...

specific Embodiment approach 2

[0017] Embodiment 2: This embodiment differs from Embodiment 1 in that the alcohol solvents used in solution A and solution B in step 2 are all ethylene glycol, ethanol, methanol or glycerol. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 3, the mixed solution is reacted under normal pressure at 65°C and 120-180W for 12-16 minutes. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a synthesis method and use of nano cadmium zinc sulfide with visible light catalytic activity and relates to a synthesis method and use of a sulfide having visible light catalytic activity. When the synthesis method is used, the long reaction time and high reaction temperature problems of the conventional method for preparing cadmium zinc sulfide are solved. The synthesis method comprises: dissolving zinc acetate, cadmium acetate, thioacetamide and dodecyl benzene sulphonic acid in alcohol solvent to obtain mixed solution; and placing the mixed solution in microwaves for reaction. The nano cadmium zinc sulfide synthesized by the method can be used as a photocatalytic material for use in the hydrogen production by decomposition in visible light. The synthesis methoddisclosed by the invention adopts a simple process and readily available raw material, and can synthesize the nano cadmium zinc sulfide quickly with small energy consumption and high yield. The nano cadmium zinc sulfide has uniform particles and high purity and has high strong absorbability at wavelength of about 490 nanometers; and the nano cadmium zinc sulfide demonstrates good visible light response property, and the hydrogen generation rate reaches 300 to 450 millimoles / h<-1>.g<-1>, which is very high.

Description

technical field [0001] The invention relates to a synthesis method and application of a nano-sulfide with visible light catalytic activity. Background technique [0002] Currently used energy sources such as oil, natural gas, and coal are non-renewable resources. The stock on the earth is limited, and human beings cannot survive without energy. Therefore, new energy sources must be found. With the increasing consumption of fossil fuels, their reserves are decreasing, and one day these resources will be exhausted. It is urgent to find a new energetic energy source that does not depend on fossil fuels. Hydrogen is the most common element in nature. Hydrogen energy has the advantages of no pollution, high calorific value, recyclability, and various forms of utilization. As an ideal energy source to replace fossil fuels, it has broad application prospects. Use solar energy to decompose water to produce hydrogen, convert solar energy with low energy density and strong dispersion...

Claims

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Application Information

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IPC IPC(8): C01G11/02B82Y40/00B01J27/04C01B3/04
CPCY02E60/364Y02E60/36
Inventor 陈刚周彦松于耀光郝临星谈翔杨治波
Owner HARBIN INST OF TECH
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