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An ag-doped 3dom CeO 2 -ZrO 2 material preparation

A 3domceo2-zro2, 3·6H2O technology, applied in the chemical industry, can solve problems such as low utilization of sunlight, achieve large specific surface area, improve photocatalytic activity, and increase the effect of migration pathways

Active Publication Date: 2022-05-31
QIQIHAR UNIVERSITY
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Problems solved by technology

However, general photocatalysts have disadvantages such as low utilization rate of sunlight, so it is very meaningful to prepare high-efficiency photocatalytic materials in the photolysis of water to produce hydrogen and degrade pollutants.

Method used

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  • An ag-doped 3dom CeO <sub>2</sub> -ZrO <sub>2</sub> material preparation
  • An ag-doped 3dom CeO <sub>2</sub> -ZrO <sub>2</sub> material preparation
  • An ag-doped 3dom CeO <sub>2</sub> -ZrO <sub>2</sub> material preparation

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Embodiment Construction

[0017] Synthesis of Ag-Doped 3DOM CeO by Decompression Filling Method 2 -ZrO 2 The composite photocatalyst was weighed from 99.0% Ce(NO) purchased from Tianjin Kemeiou Chemical Reagent Co., Ltd. 3 ) 3 ·6H 2 O, the mass is Ce (NO 3 ) 3 ·6H 2 O, 0.167±0.002 g, and 99.8% AgNO purchased from Tianjin Guangfu Institute of Fine Chemicals 3 , the mass of 0.023 ± 0.001 g was dissolved in 99.7% IPA purchased from Tianjin Guangfu Institute of Fine Chemicals, and the volume was 2 mL for use. The P123 of Mn~5800 purchased from Shanghai Saen Chemical Technology Co., Ltd., with a mass of 0.050 ± 0.005 g, was added to 15 mL of IPA with a volume of 15 mL and stirred until completely dissolved, and then added dropwise and purchased from Shanghai Merrill Chemical Technology Co., Ltd. 80.0% Zr(OC 4 H 9 ) 4 , the volume was 1.5 mL, and then Ce(NO 3 ) 3 with AgNO 3 solution to form Ag / CeO 2 -ZrO 2 Sol, PS template (synthesized by emulsifier-free emulsification method, and obtained by...

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Abstract

The invention discloses a method for preparing Ag-doped 3DOM CeO by decompression filling synthesis method 2 -ZrO 2 A composite photocatalyst belongs to the technical field of chemical industry. Polystyrene (PS) rubber balls are used as macroporous templates, and EO 20 PO 70 o 20 (P123) is a mesoporous template, using Zr(OC 4 h 9 ) 4 , Ce(NO 3 ) 3 ·6H 2 O, AgNO 3 As a raw material, after filling under reduced pressure, drying and calcination to obtain 3DOM Ag / CeO 2 -ZrO 2 composite photocatalyst. Its surface morphology, microstructure, and photocatalytic activity were measured, and the product performance has been greatly improved in the photocatalysis of degrading Congo red and photolysis of water to produce hydrogen.

Description

technical field [0001] The invention relates to Ag-doped 3DOM CeO prepared by a decompression filling method 2 -ZrO 2 The composite photocatalyst belongs to the technical field of the chemical industry. Background technique [0002] With the consumption of energy, the technology of using solar energy to split water to produce hydrogen has attracted widespread attention, and environmental problems have also become one of the factors of economic development. The new photocatalytic technology has attracted extensive attention of scientists from all over the world due to its environmental friendliness and other characteristics. Most of the photocatalytic technologies use semiconductor materials as photocatalysts, which can degrade pollutants under the excitation of light. However, general photocatalysts have disadvantages such as low utilization of sunlight, so the preparation of high-efficiency photocatalytic materials is very meaningful in the aspects of photolysis of water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/66C02F1/30C02F1/32C01B3/04
CPCC01B3/042C02F1/30C02F1/32B01J23/66C02F2305/10B01J35/39Y02E60/36
Inventor 李莉郝玉婷周黔龙张文治
Owner QIQIHAR UNIVERSITY
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