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Preparation method of nitrogen-doped indium trioxide nanorod/graphene oxide composite photocatalyst

A compound technology of diindium trioxide and graphene, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of cumbersome preparation, achieve simple preparation, effective degradation, and expand the applicable field Effect

Inactive Publication Date: 2016-03-16
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application 201310709326.7 discloses a method for preparing a mesoporous indium trioxide / reduced graphene oxide composite photocatalyst. The prepared mesoporous indium trioxide has a regular mesoporous channel structure and a large specific surface area; but its The preparation process requires an organic template or directing agent, resulting in cumbersome preparation
In the prior art, there is no report on nitrogen-doped indium trioxide nanorod functionalized graphene composite visible light catalyst with large specific surface area and high crystallinity

Method used

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  • Preparation method of nitrogen-doped indium trioxide nanorod/graphene oxide composite photocatalyst
  • Preparation method of nitrogen-doped indium trioxide nanorod/graphene oxide composite photocatalyst

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Embodiment 1

[0025] A preparation method of nitrogen-doped indium trioxide nanorod / graphene oxide composite photocatalyst, comprising the following steps:

[0026] 1) Preparation of nitrogen-doped indium trioxide nanorods, using In 2 o 3 -NR to represent

[0027] Synthesis of In by hydrothermal method 2 o 3 -NR. Weigh 0.362gInCl 3 ?4H 2 O and 0.720g urea were dissolved in 50.0g deionized water respectively and processed with a magnetic stirrer at a speed of 900rpm for 10min to completely dissolve it, and then InCl 3 The solution was added dropwise to the urea solution to continue the treatment for 15 minutes. The resulting solution was aged at 130°C for 12h. The aged solution was filtered by suction, washed with deionized water, dried, put into a muffle furnace for heat treatment, and heated to 350°C at a rate of 5°C / min, kept for 3 hours and then naturally lowered to room temperature to obtain In 2 o 3 - NR product, ready for use;

[0028] 2) Preparation of nitrogen-doped indiu...

Embodiment 2

[0033] A preparation method of nitrogen-doped indium trioxide nanorod / graphene oxide composite photocatalyst, comprising the following steps:

[0034] 1) Preparation of nitrogen-doped indium trioxide nanorods, using In 2 o 3 -NR to represent

[0035] Synthesis of In by hydrothermal method 2 o 3 -NR. Weigh 0.362gInCl 3?4H 2 O and 0.720g urea were respectively dissolved in 50.0g deionized water and treated with a magnetic stirrer at a speed of 600rpm for 10min to completely dissolve it, and then InCl 3 The solution was added dropwise to the urea solution to continue the treatment for 15 minutes. The resulting solution was aged at 150°C for 12h. The aged solution was suction-filtered, washed with deionized water, dried, put into a muffle furnace for heat treatment, raised to 150°C at a rate of 5°C / min, kept for 3 hours, and then naturally dropped to room temperature to obtain In 2 o 3 -NR product, ready for use.

[0036] 2) Preparation of nitrogen-doped indium trioxide...

Embodiment 3

[0040] A preparation method of nitrogen-doped indium trioxide nanorod / graphene oxide composite photocatalyst, comprising the following steps:

[0041] 1) Preparation of nitrogen-doped indium trioxide nanorods, using In 2 o 3 -NR to represent

[0042] Synthesis of In by hydrothermal method 2 o 3 -NR. Weigh 0.362gInCl 3 ?4H 2 O and 0.720g urea were respectively dissolved in 50.0g deionized water and treated with a magnetic stirrer at a speed of 1000rpm for 10min to completely dissolve it, and then InCl 3 The solution was added dropwise to the urea solution to continue the treatment for 15 minutes. The resulting solution was aged at 200°C for 12h. The aged solution was filtered by suction, washed with deionized water, dried, put into a muffle furnace for heat treatment, raised to 300°C at a rate of 5°C / min, kept for 3 hours and then naturally lowered to room temperature to obtain In 2 o 3 -NR product, ready for use.

[0043] 2) Preparation of nitrogen-doped indium trio...

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Abstract

The invention discloses a method for preparing a nitrogen-doped indium sesquioxide nanorod / graphene oxide composite photocatalyst. The method specifically comprises the following steps: (1) preparing a nitrogen-doped indium oxide nanorod; and (2) preparing nitrogen-doped indium oxide nanorod functionalized graphene. By adopting the method, the light response range of the indium oxide photocatalyst is effectively expanded, the catalysis activity of the photocatalyst under the visible light condition is remarkably enhanced, and the application range of the indium oxide photocatalyst is widened. The nitrogen-doped indium oxide nanorod / graphene oxide composite photocatalyst can rapidly and effectively degrade phenolic wastewater, is high in recycling rate and free of secondary pollution, is an environmental-friendly photocatalyst, and can be used for decomposing organic pollutants in water in a visible light catalysis manner.

Description

technical field [0001] The invention relates to the preparation of a photocatalyst for decomposing organic matter with visible light, in particular to a method for preparing a nitrogen-doped indium trioxide nanorod / graphene oxide composite photocatalyst, which belongs to the field of high-performance photocatalysts. Background technique [0002] As a new type of wastewater treatment technology, photocatalysis has shown broad application prospects in the advanced treatment of organic wastewater. It has attracted widespread attention from researchers at home and abroad for its remarkable advantages of completely mineralizing organic pollutants. The photocatalytic process has the advantages of almost no selectivity to the degradation of organic matter, complete mineralization of organic pollutants, no secondary pollution, simple equipment, less investment, and good results. [0003] Photocatalytic oxidation technology is a semiconductor catalyst that generates OH free radicals ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/30
CPCY02W10/37
Inventor 杨平黄徽岳宗款杜玉扣
Owner SUZHOU UNIV