Preparation of nano-feo x /nio y /Methods, products and applications of mesoporous material catalysts

A technology of mesoporous materials and catalysts, applied in the research field of catalyst materials, to achieve the effect of improving size and dispersion, fine particle size, and improving activity

Inactive Publication Date: 2017-01-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to reports, the loading of zero-valent metal nickel can improve the catalytic activity (C.Lee, D.L.Sedlak, Environmental Science & Technology 42 (2008) 8528-8533.), and the preparation of iron and nickel into multi-metal mixed oxides for organic wastewater treatment is also no report

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  • Preparation of nano-feo <sub>x</sub> /nio <sub>y</sub> /Methods, products and applications of mesoporous material catalysts
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  • Preparation of nano-feo <sub>x</sub> /nio <sub>y</sub> /Methods, products and applications of mesoporous material catalysts

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Effect test

Embodiment 1

[0040] Take 1g of mesoporous SBA-15 (SiO 2 / Al 2 o 3 ≥500, BET:400-600m 2 / g, pore size 6-8nm) sample, equal volume impregnated in the content of 8.953×10 -4 mol of NiCl 2 In the aqueous solution, air-dry at room temperature, dry in an oven at 105°C to remove residual moisture, and place in a tube furnace for calcination at 400°C for 4 hours. After roasting, the sample is impregnated in an equal volume at a content of 8.953×10 -4 mol of Fe(NO 3 ) 3 In the aqueous solution, dry at 105°C and bake at 400°C for 4 hours. The obtained sample was placed in a tube furnace, H 2 Reduction at 300°C for 2 hours under atmospheric conditions to obtain FeO x / NiO y / SBA-15 catalyst.

Embodiment 2

[0042] Take 1g of mesoporous SBA-15 (SiO 2 / Al 2 o 3 ≥500, BET:400-600m 2 / g, pore size 6-8nm) sample, equal volume impregnated in the content of 8.953×10 -4 mol of Fe(NO 3 ) 3 In the aqueous solution, air-dry at room temperature, dry in an oven at 105°C to remove residual moisture, and place in a tube furnace for calcination at 400°C for 4 hours. After roasting, the sample is impregnated in an equal volume at a content of 8.953×10 -4 mol of NiCl 2 In the aqueous solution, dry at 105°C and bake at 400°C for 4 hours. The obtained sample was placed in a tube furnace, H 2 Reduction at 300°C for 2 hours under atmospheric conditions to obtain NiO y / FeO x / SBA-15 catalyst.

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Abstract

The invention discloses a method for preparing a nano FeOx / NiOy / mesoporous material catalyst. The method comprises the following steps: mixing and soaking an aqueous solution of Ni<2+> and Fe<3+> with a mesoporous material, drying, roasting and reducing to prepare a mixed-phase multi-metal oxide catalyst. The invention further discloses a catalyst prepared by the method and an application of the catalyst. According to the method disclosed by the invention, the mesoporous material is utilized to perform spatial definition on the growth of nano particles to obtain the nano particles with uniform particle diameters. Iron and nickel are co-loaded to further improve the shapes, the particle diameters and the dispersion of the nano particles, so that the activity of the catalyst is greatly improved, and the Fenton degradation rate and the hydrogen peroxide utilization rate of the organic substances are greatly increased. The catalyst application method is simple, the types and the proportions of the active ingredients can be precisely controlled through the reducing temperature, and multiple components co-exist in a polyvalent manner. The preparation method disclosed by the invention is simple; and the oxidant is green and environment-friendly, high in utilization rate, can directly react at a room temperature and has an industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of catalyst material research, in particular to a method for preparing magnetic, high-activity, multi-phase nano-FeO x / NiO y / Mesoporous material catalyst method, product and application on Fenton-like degradation of organic wastewater. Background technique [0002] With the rapid development of China's economy, China's total economic volume has ranked second in the world, but the environmental problems brought about by the rapid economic development have become increasingly prominent. From the past two years, China's environmental problems have entered a period of high incidence, among which water pollution incidents emerged one after another, accounting for 49% of the total environmental incidents, especially last year's Lanzhou tap water pollution and Hangzhou's water odor incident caused several Hundreds of thousands of people have difficulty drinking water, which has also caused a great impact throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/03B01J23/755C02F1/72C02F101/34C02F101/38
Inventor 文岳中李兴发马建青刘维屏
Owner ZHEJIANG UNIV
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