Carbon ferrite-titanium oxide multifunctional water purification material and preparation method thereof

A titanium oxide, multifunctional technology, applied in chemical instruments and methods, water pollutants, animal husbandry wastewater treatment, etc., can solve the problems of iron oxide particle size, crystal plane orientation and growth rate that are difficult to control, unfavorable for sewage treatment applications, etc. achieve high catalytic activity

Active Publication Date: 2019-06-18
INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI
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Problems solved by technology

However, it is necessary to ensure that the pH value of the solution during the hydrolysis process is greater than 3.8 to obtain iron oxide through iron salt hydrolysis, and the particle size, crystal plane orientation and growth rate of the hydrolyzed iron hydroxide after heating and dehydration are not easy to control, which is not conducive to the practical application of sewage treatment.

Method used

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  • Carbon ferrite-titanium oxide multifunctional water purification material and preparation method thereof
  • Carbon ferrite-titanium oxide multifunctional water purification material and preparation method thereof
  • Carbon ferrite-titanium oxide multifunctional water purification material and preparation method thereof

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preparation example Construction

[0034]A preparation method of carbon ferrite-titanium oxide multifunctional water purification material, comprising the following steps:

[0035] 1) Preparation of carbon precursor-iron hydroxide-titanate melt: mix anhydrous sodium hydroxide and anhydrous potassium hydroxide, and melt at 180 ℃ ± 2 ℃, 0.1 MPa for 60 min ± 2 min , to make a mixed alkali clarified solution; leaf powder, ferric chloride powder and titanium dioxide powder are added to the mixed alkali clarified solution, stirred for 5-6min, to obtain sodium hydroxide+potassium hydroxide+leaf+ferric chloride+titanium dioxide Melt solution; keep the molten solution of sodium hydroxide + potassium hydroxide + leaves + ferric chloride + titanium dioxide at 180 ℃ ± 2 ℃ and 0.1 MPa for 4800 min ± 10 min to obtain sodium hydroxide + potassium hydroxide + Na 2 CO 3 +K 2 CO 3 +Carbon precursor-iron hydroxide-titanate melt;

[0036] 2) Add sodium hydroxide + potassium hydroxide + Na while hot 2 CO 3 +K 2 CO 3 +Add a...

Embodiment 1

[0047] A preparation method of carbon ferrite-titanium oxide multifunctional water purification material, comprising the following steps:

[0048] 1) Preparation of carbon precursor-iron hydroxide-titanate melt: mix anhydrous sodium hydroxide and anhydrous potassium hydroxide, and melt at 180 ℃ and 0.1 MPa for 60 min to prepare a mixed alkali clarification liquid; leaf powder, ferric chloride powder and titanium dioxide powder were added to the mixed alkali clarified liquid, and stirred for 5 minutes to obtain a molten solution of sodium hydroxide+potassium hydroxide+leaf+ferric chloride+titanium dioxide; sodium hydroxide+ The molten solution of potassium hydroxide + leaves + ferric chloride + titanium dioxide was kept at 180 °C and 0.1 MPa for 4800 min to obtain sodium hydroxide + potassium hydroxide + Na 2 CO 3 +K 2 CO 3 +Carbon precursor-iron hydroxide-titanate melt;

[0049] 2) Add sodium hydroxide + potassium hydroxide + Na while hot 2 CO 3 +K 2 CO 3 +Add a hydroc...

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Abstract

The invention belongs to the field of composite catalytic material preparation, and specifically relates to a carbon ferrite-titanium oxide multifunctional water purification material and a preparation method thereof. A mixed alkali composed of sodium hydroxide and potassium hydroxide is taken as the solvent; agricultural and forestry wastes such as fern leaves, banyan leaves, leaf powder, and thelike, ferric trichloride, and titanium dioxide are taken as the raw materials; a hydrochloric acid with a pH value of 1 is taken as the extracting agent; deionized water is taken as the washing agentand detergent, and anhydrous ethanol is taken as the detergent and drying carrier. Under a normal pressure, at a low temperature of 180 DEG C, a carbon precursor-ferric hydroxide-titanate composite material is synthesized; and the composite material is burned in the air at a temperature of 300 DEG C to obtain the carbon ferrite-titanium oxide composite material with a porous structure. The carbonferrite-titanium oxide composite material has stable physical-chemical properties, can respond to visible light of sunlight, is hydrophilic, and has visible light catalytic activity, an adsorption function, and a magnetic separation function.

Description

technical field [0001] The invention belongs to the field of composite catalytic material preparation, and in particular relates to a preparation method of carbon ferrite-titanium oxide multifunctional water purification material. Background technique [0002] Environmental pollution has become an urgent problem to be solved in the 21st century. Polluted water sources have brought more and more serious impacts on people's lives. Photocatalytic technology plays an important role in pollution control and environmental protection. It can directly convert light into chemical energy, promote the synthesis and degradation of compounds, and has the advantages of low energy consumption, high efficiency, no secondary pollution, and reusability. It has become a focus of extensive attention and research in many scientific research fields. Titanium dioxide (TiO 2 ) has stable chemical properties, is not prone to photocorrosion after being illuminated, is low in cost, has high photocat...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/30C02F3/34C02F101/10C02F101/16C02F103/20
Inventor 陈彪李洁黄婧肖艳春
Owner INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI
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