Preparation method of Vb group metal ion doped (ga1-xznx) (n1-xox) solid solution photocatalyst

A metal ion and photocatalyst technology, which is applied in the field of preparation of VB group metal ion doped solid solution photocatalyst, can solve the problems of low oxygen production performance and the like, and achieves the effects of simple operation, improved solar energy conversion efficiency and improved performance.

Active Publication Date: 2016-02-17
HARBIN INST OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the photocatalyst utilizes solar energy to decompose water to generate oxygen under visible light, and provides VB group metal ion doping (Ga 1-x Zn x )(N 1-x o x ) preparation method of solid solution photocatalyst

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  • Preparation method of Vb group metal ion doped (ga1-xznx) (n1-xox) solid solution photocatalyst
  • Preparation method of Vb group metal ion doped (ga1-xznx) (n1-xox) solid solution photocatalyst
  • Preparation method of Vb group metal ion doped (ga1-xznx) (n1-xox) solid solution photocatalyst

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specific Embodiment approach 1

[0011] Specific implementation mode one: this implementation mode VB group metal ion doping (Ga 1-x Zn x )(N 1-x o x ) The preparation method of solid solution photocatalyst is to carry out in the following steps: one, Ga 2 o 3 Mix with ZnO, add VB group metal compound after mixing, and then place it in an agate mortar for grinding at room temperature to obtain a ground precursor; 2. Calcinate the ground precursor in an ammonia atmosphere, and then After cooling to 100°C under the atmosphere, take it out, then cool to room temperature, and then wash with deionized water and absolute ethanol to obtain VB group metal ion doping (Ga 1-x Zn x )(N 1-x o x ) solid solution photocatalyst, which is completed; where (Ga 1-x Zn x )(N 1-x o x ) in x is 02 o 3 And the molar ratio of Ga element to Zn element in ZnO is 1: (0.8-1.1), and the molar ratio of the sum of Ga element and Zn element to VB group metal element is 1: (0.01-0.1).

[0012] In this embodiment, Ga 2 o 3 , Z...

specific Embodiment approach 2

[0013] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the compound of Group VB metal in Step 1 is an oxide of Group VB metal or a nitrate of Group VB metal. Others are the same as the first embodiment.

specific Embodiment approach 3

[0014] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the grinding time in step 1 is 30-60 minutes. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a preparation method of VB-group metal ion doped (Ga<1-x>Znx)(N<1-x>Ox) solid solution photocatalyst. The invention relates to a preparation method of VB-group metal ion doped (Ga<1-x>Znx) (N<1-x>Ox) solid solution photocatalyst, which solves the problems that the performance of the photocatalyst for decomposing water to generate oxygen by utilizing the solar under the visible light is low. The preparation method comprises the following steps of I. mixing Ga2O3 and ZnO, adding a compound of VB-group metal, arranging the mixture into an agate mortar, and grinding the mixture under the room temperature; II. calcining the ground precursor in an ammonia gas atmosphere, cooling the precursor in the ammonia gas atmosphere to the temperature of 100 DEG C, taking out, cooling the precursor to the room temperature, and washing the precursor by utilizing deionized water and anhydrous ethanol. The preparation method is simple in operation, the activity of the oxygen generation of the prepared photocatalsyt material is greatly improved compared with that of the original system, and the conversion efficiency of the solar energy is improved. The preparation method is applicable to the field of the photocatalyst material in a functional material.

Description

technical field [0001] The present invention relates to VB group metal ion doping (Ga 1-x Zn x )(N 1-x o x ) Preparation method of solid solution photocatalyst. Background technique [0002] The deterioration of energy and environmental problems has made it urgent to develop clean and efficient new energy sources. h 2 It has a high combustion value, is odorless and non-toxic, and the combustion products are non-polluting and renewable. It is a new energy source with broad prospects. The traditional method of hydrogen production is through electrolysis of water, which consumes a lot of energy and has hidden dangers in transportation safety. And use solar photocatalysis to decompose water to produce hydrogen, convert solar energy with low energy density and strong dispersion into hydrogen energy, and then use the fuel cell to convert the generated H 2 and O 2 The electrochemical reaction is carried out to generate electric energy, and the product water can be used as a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24
Inventor 陈刚周彦松于麒麟赵丽宸何强
Owner HARBIN INST OF TECH
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