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A catalytic toluene combustion ni-α-mno 2 Synthetic method of catalyst

A synthesis method and catalyst technology, applied in combustion methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve problems such as poor stability and low elimination activity, and achieve good stability, The effect of low price and simple conditions

Active Publication Date: 2022-08-09
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low activity and poor stability of the existing manganese oxide catalysts to catalyze the combustion and elimination of VOCs such as toluene, and to provide a Ni-α-MnO catalyst for the combustion of toluene. 2 Catalyst Synthesis Method

Method used

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  • A catalytic toluene combustion ni-α-mno <sub>2</sub> Synthetic method of catalyst
  • A catalytic toluene combustion ni-α-mno <sub>2</sub> Synthetic method of catalyst
  • A catalytic toluene combustion ni-α-mno <sub>2</sub> Synthetic method of catalyst

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specific Embodiment approach 1

[0021] Embodiment 1: In this embodiment, a catalytic toluene combustion of Ni-α-MnO 2 The synthetic method of catalyst, it is realized according to the following steps:

[0022] 1. Add 15-45ml deionized water and 5-20mmol potassium permanganate into A cup, ultrasonicate for 10 minutes, and stir magnetically at room temperature to obtain a purple solution;

[0023] 2. Add 100~300ml of deionized water and 27~324mmol of ethylene glycol into cup B, stir magnetically at room temperature to obtain a transparent solution;

[0024] 3. Add the purple solution obtained in step 1 to the transparent solution obtained in step 2, stir and react for 0.5-6 h, and then add 0.5-3.0 mmol Ni 2+ metal salt, and continue stirring for 1-4 h to obtain a reaction solution;

[0025] 4. The reaction solution obtained in step 3 is filtered, and the filtered solid product is washed with deionized water until neutral, then dried at 80-105 °C for 8-24 hours, and then calcined in air at 350-650 °C for 2-6 ...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, 25 ml of deionized water and 10 mmol of potassium permanganate are added to the A cup. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 1, 35 ml of deionized water and 15 mmol of potassium permanganate are added to the A cup. Other steps and parameters are the same as in the first or second embodiment.

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Abstract

A kind of catalytic toluene combustion Ni-α-MnO 2 A method for synthesizing a catalyst belongs to the technical field of environmental catalytic purification. It needs to solve the problems of low activity and poor stability of the existing manganese oxide catalyst for catalyzing the combustion and elimination of VOCs such as toluene. Methods: 1. Prepare potassium permanganate solution; 2. Prepare ethylene glycol solution; 3. Add Ni after mixing the two 2+ The metal salt is obtained to obtain a reaction solution; 4. The reaction solution is filtered, and the solid product is washed, dried and calcined to complete. The present invention uses ethylene glycol as reducing agent for the first time at room temperature to reduce MnO 4 ‑ reduction to α-MnO 2 Precursor, then add Ni 2+ Perform in-situ substitution doping to obtain Ni‑α‑MnO 2 It has higher catalytic activity, good stability, simple method, mild conditions, easy operation, low price, short cycle and energy saving. The invention is suitable for synthesizing and catalyzing toluene to burn Ni-α-MnO 2 catalyst.

Description

technical field [0001] The invention belongs to the technical field of environmental catalytic purification, and in particular relates to a catalytic toluene combustion Ni-α-MnO 2 Synthesis of catalysts. Background technique [0002] Volatile organic compounds (VOCs), such as benzene, toluene, and xylene, which are emitted from human production and living, are a major class of air pollutants, causing a series of environmental and health problems. Therefore, it is crucial to develop effective technologies and materials to control volatile organic compound emissions. At present, adsorption methods, separation methods, biodegradation methods, ozone catalytic oxidation methods, plasma catalytic methods and photocatalytic methods have been developed for the elimination of VOCs. Of all the strategies, catalytic oxidation is considered to be one of the most efficient and economical. [0003] In recent years, manganese oxide (MnO x ) has been widely studied for the catalytic com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J37/00F23G7/07
CPCB01J23/8892B01J37/00F23G7/07Y02A50/20
Inventor 董永利陈超群宋微娜魏立国吴捷杨鑫鑫吴鹏解丽萍宋志伟
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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