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Preparation method of CdS/Cd2Ge2O6 hetrojunction photocatalyst in response to visible light

A photocatalyst and visible light technology, applied in the field of environmental pollution control, can solve the problems of low electron-hole separation efficiency, achieve good crystallization, excellent visible light catalytic degradation activity, and reduce production costs

Inactive Publication Date: 2017-06-23
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Preparation of CdS / Cd Responsive to Visible Light by Ion Exchange Method 2 Ge 2 o 6 The heterojunction photocatalyst solves the problem of low electron-hole separation efficiency in the prior art although the photocatalyst has a good visible light response range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Cd 2 Ge 2 o 6 Preparation of nanorods

[0021] Synthesis of Cd by Solvothermal Method 2 Ge 2 o 6 Nanorods, weigh 1 mM GeO 2 and 1 mM Cd(AC) 2 2H 2 O was dissolved in 15 mL of deionized water and absolute ethanol in a mixed solvent with a volume ratio of 1:2, and ultrasonically dispersed to obtain a mixed solution; the above mixed solution was transferred to an autoclave, and reacted at 160 °C for 14 h. After the reaction was completed, the autoclave was gradually cooled to room temperature, the sample was taken out, the product was washed 3 times with ethanol and deionized water, and dried in an oven at 60 °C.

Embodiment 2

[0022] Example 2 Cd 2 Ge 2 o 6 Preparation of nanorods

[0023] Synthesis of Cd by Solvothermal Method 2 Ge 2 o 6 Nanorods, weigh out 2 mM GeO 2 and 2 mM Cd(AC) 2 2H 2 O was dissolved in 30 mL of deionized water and absolute ethanol in a mixed solvent with a volume ratio of 1:2, and ultrasonically dispersed to obtain a mixed solution; the above mixed solution was transferred to an autoclave, and reacted at 180 °C for 12 h, and waited for After the reaction was completed, the autoclave was gradually cooled to room temperature, the sample was taken out, the product was washed 3 times with ethanol and deionized water, and dried in an oven at 60 °C.

Embodiment 3

[0024] Example 3 Cd 2 Ge 2 o 6 Preparation of nanorods

[0025] Synthesis of Cd by Solvothermal Method 2 Ge 2 o 6 Nanorods, weigh 3 mM GeO 2 and 3 mM Cd(AC) 2 2H 2 O was dissolved in 45 m of deionized water and anhydrous ethanol in a mixed solvent with a volume ratio of 1:2, and ultrasonically dispersed to obtain a mixed solution; the above mixed solution was transferred to a high-pressure reactor, and reacted at 200 °C for 10 h. After the reaction was completed, the autoclave was gradually cooled to room temperature, the sample was taken out, the product was washed 3 times with ethanol and deionized water, and dried in an oven at 60 °C.

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PUM

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Abstract

The invention discloses a preparation method of a CdS / Cd2Ge2O6 hetrojunction photocatalyst in response to visible light and belongs to the technical field of environmental pollution control. The preparation method is characterized in that Cd2Ge2O6 and Cd(AC)2.2H2O are prepared by a solvent-thermal method under the condition of a mixed solvent of deionized water and anhydrous alcohol; and then the CdS / Cd2Ge2O6 hetrojunction photocatalyst in response to the visible light is prepared by adopting an ion exchange method and is used for visible light catalytic degradation of methylene blue as a dye pollutant and bisphenol A as an endocrine disruptor. The preparation method has the advantages of simpleness in operation, stable performance, high degradation efficiency, no generation of other pollutants in the preparation process and the like and has very high practical value and an application prospect.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control, and in particular relates to a visible light responsive CdS / Cd 2 Ge 2 o 6 Preparation method and application of heterojunction photocatalyst. Background technique [0002] Environmental pollution control and treatment is a major issue that needs to be solved urgently in the 21st century of mankind. Photocatalytic technology, as a high-tech environmental pollution control, has received extensive attention in recent years. The photocatalytic process is a light-induced oxidation-reduction process, which has the characteristics of high safety, good catalytic performance, and strong environmental protection. It has received more and more attention in dealing with energy shortages and environmental pollution problems. Photocatalyst is the core of photocatalytic technology and the basis for the development and application of photocatalytic products. [0003] Dye wastewater is...

Claims

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Application Information

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IPC IPC(8): B01J27/04C02F1/30C02F101/38C02F101/34
CPCC02F1/30B01J27/04C02F2101/40C02F2101/345C02F2305/10B01J35/39
Inventor 张亚茹王晓东闫涛刘小欢纪鹏阁魏东孙蒙杜斌
Owner UNIV OF JINAN
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