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Ternary compound Pr-Go-BiOX catalyst and preparation method thereof

A ternary compound and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, water treatment of special compounds, etc., can solve the problems of different activity and low activity, achieve large adsorption capacity, large specific surface area, improve the effect of nature

Pending Publication Date: 2022-02-01
白银新大孚科技化工有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, single BiOX (X is Cl, Br, I) has low activity when degrading organic pollutants, and different BiOX (X is Cl, Br, I) have different activities when degrading the same organic pollutants.

Method used

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  • Ternary compound Pr-Go-BiOX catalyst and preparation method thereof
  • Ternary compound Pr-Go-BiOX catalyst and preparation method thereof

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Embodiment

[0016] A ternary composite Pr-Go-BiOX catalyst, wherein X is one of the halogen elements Cl, Br and I, wherein Pr accounts for 0.25%-5% of the total mass of the catalyst.

[0017] The preparation method of described ternary composite Pr-Go-BiOX catalyst comprises the following steps:

[0018] A. Preparation of BiOX: Weigh Bi(NO 3 ) 3 ·5H 2 O and halogen-containing compounds, the Bi(NO 3 ) 3 ·5H 2 O is put into the reaction liner filled with ethylene glycol or isopropanol, heated to a certain temperature (30, 40, 50°C were investigated respectively) and stirred for a period of time (10, 20, 30min were investigated respectively in the test) , then add the halogen-containing compound, and then stir for a period of time (30, 60, and 90 minutes were investigated in the test) and then moved into a high-temperature reaction kettle, and heated and reacted for a period of time at a constant temperature (80, 160, and 240° C. were investigated in the test) (test 2, 6, and 12 hours ...

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Abstract

The invention discloses a ternary compound Pr-Go-BiOX catalyst and a preparation method thereof, and belongs to the technical field of photocatalysts. The method comprises the following steps: preparing BiOX; preparing Go-BiOX; and preparing the Pr-Go-BiOX. The preparation method comprises the following steps: mixing Bi(NO3)3.5H2O and a halogen element-containing compound, conducting stirring, carrying out a heating reaction to obtain BiOX, mixing graphite oxide (Go) and the BiOX prepared in the previous step according to a certain ratio, carrying out ultrasonic dispersion to obtain Go-BiOX, and doping Pr into a Go-BiOX binary compound to obtain the ternary compound Pr-Go-BiOX catalyst. The activity of the BiOX photocatalyst is enhanced in a rare earth doping and loading mode, Pr is selected as a proper rare earth doping element, Go is selected as a conductor, and the ternary compound Pr-Go-BiOX photocatalyst is synthesized by adopting a three-step method. Graphene integrating adsorption and conductivity and a rare earth element Pr with a special energy level are introduced into the catalyst, and the recombination rate of photon-generated carriers is reduced by capturing photo-generated electrons, so that the photocatalytic activity of the catalyst is improved.

Description

technical field [0001] The invention relates to the technical field of photocatalysts, in particular to a ternary composite Pr-Go-BiOX catalyst and a preparation method thereof. Background technique [0002] At present, environmental pollution has aroused widespread concern because of its serious harm to organisms. The development of non-polluting environmental treatment technologies is crucial to pollution control. Semiconductor photocatalysis is an efficient pollutant control technology with the advantages of low toxicity, high affordability and high efficiency. BiOX photocatalysts have excellent optical properties, special structures, and a wide range of industrial applications. Due to its unique electronic structure and energy band structure, BiOX (X is Cl, Br, I) photocatalysts show better catalytic degradation performance than other types of semiconductors in the photocatalytic degradation of organic pollutants. However, single BiOX (X is Cl, Br, I) has low activity...

Claims

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Application Information

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IPC IPC(8): B01J27/06B01J35/10C02F1/30C02F101/30
CPCB01J27/06C02F1/30C02F2305/10C02F2101/30B01J35/61B01J35/39
Inventor 王军王军辉单文杰王进龙张析张龙军李飞贾存鹏王庆西陈瑜王源瑞夏青
Owner 白银新大孚科技化工有限公司
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