Preparation method and application of attapulgite/molybdenum sulfide composite material

A technology of attapulgite and composite materials, applied in chemical instruments and methods, catalyst activation/preparation, separation methods, etc., can solve problems such as low utilization rate of visible light, and achieve the effects of avoiding curling and breaking, promoting transfer, and avoiding compounding

Active Publication Date: 2017-06-13
盱眙县中材凹凸棒石粘土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, the Tanaka research group in Japan has reported that TiO 2 Photo-SCR denitrification technology for catalysts, but due to TiO 2 The bandgap width is relatively high, and high-energy ultraviolet light is generally required, so the utilization rate of visible light, which accounts for the vast majority of solar energy, is low

Method used

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  • Preparation method and application of attapulgite/molybdenum sulfide composite material
  • Preparation method and application of attapulgite/molybdenum sulfide composite material
  • Preparation method and application of attapulgite/molybdenum sulfide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 0.97g of sodium molybdate, 1.5g of thioacetamide and 0.21g of attapulgite into 60ml of deionized water for ultrasonication and stir for 30min, transfer the resulting mixture to a reaction kettle at 240°C for 24h, filter and filter cake After fully washing with water and alcohol, dry at 100°C for 24 hours to obtain the attapulgite / molybdenum sulfide composite material.

[0021] Carry out X-ray powder diffraction experiment to the attapulgite / molybdenum sulfide composite material prepared in the present embodiment, and observe its morphology and structure under the transmission electron microscope, it and the XRD pattern of attapulgite, molybdenum sulfide are as follows figure 1 As shown: in the XRD of the composite material, the characteristic diffraction peaks of attapulgite and molybdenum sulfide appeared, and the respective peak intensities were all reduced, indicating that attapulgite and molybdenum sulfide were successfully composited; in addition, ATP / MoS 2 Med...

Embodiment 2

[0026] Add 0.97g of sodium molybdate, 1.5g of thioacetamide and 0.08g of attapulgite into 60ml of deionized water for ultrasonication and stir for 30min, transfer the resulting mixture to a reaction kettle at 180°C for 16h, filter and filter cake After fully washing with water and alcohol, dry at 60°C for 12 hours to obtain the attapulgite / molybdenum sulfide composite material, and the subsequent detection is as in Example 1.

Embodiment 3

[0028] Add 0.97g of sodium molybdate, 1.5g of thioacetamide and 0.32g of attapulgite into 60ml of deionized water for ultrasonication and stir for 30min, transfer the resulting mixture to a reaction kettle at 200°C for 20h, filter, and filter cake After being fully washed with water and alcohol, dried at 80°C for 16 hours to obtain the attapulgite / molybdenum sulfide composite material, the subsequent detection is as in Example 1.

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Abstract

The invention belongs to the technical field of non-metal ores, and particularly relates to a preparation method and application of an attapulgite / molybdenum sulfide composite material. The preparation method comprises the following steps: adding a molybdenum source, a sulfur source and attapulgite into deionized water, sufficiently dispersing to obtain a dispersion solution, carrying out hydrothermal reaction on the dispersion solution, filtering, washing the filter cake, and drying to obtain the attapulgite / molybdenum sulfide composite material. The composite material can be used as a catalyst to perform photo-assisted SCR (selective catalytic reduction) denitrification.

Description

technical field [0001] The invention belongs to the technical field of non-metallic minerals, in particular to a preparation method and application of an attapulgite / molybdenum sulfide composite material. Background technique [0002] my country's thermal power plants mostly use coal as fuel, and coal contains relatively high sulfur components. In order to prevent denitrification catalysts from 2 The denitration device of the power plant is usually placed downstream of the electrostatic dust filling device and desulfurization device, which will greatly reduce the temperature of the flue gas. The development of low-temperature denitrification technology has become a hot topic. [0003] The active component of the widely used commercial SCR denitration catalyst is V 2 o 5 , with anatase TiO 2 As the carrier, the cocatalyst is WO 3 or MoO 3 . However, vanadium-based catalysts require high catalytic temperature, narrow activity temperature range, and high-temperature N 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051B01J37/10B01D53/86B01D53/90B01D53/56
CPCB01D53/8628B01D53/90B01D2258/0283B01J27/051B01J35/004B01J37/10
Inventor 于龙庆鲁光辉姚超李霞章
Owner 盱眙县中材凹凸棒石粘土有限公司
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