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A carbon ferrite-titanium oxide multifunctional water purification material and its preparation method

A titanium oxide, multi-functional 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 are not easy to control, unfavorable for sewage treatment applications, etc. To achieve the effects of environmental protection and non-toxicity of raw materials and products, short synthesis process and simple operation

Active Publication Date: 2021-10-22
INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI
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  • Description
  • Claims
  • Application Information

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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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  • A carbon ferrite-titanium oxide multifunctional water purification material and its preparation method
  • A carbon ferrite-titanium oxide multifunctional water purification material and its preparation method
  • A carbon ferrite-titanium oxide multifunctional water purification material and its preparation method

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preparation example Construction

[0034]Preparation method of carbon ferrite-titanium oxide multi-function water purification material, including the following steps:

[0035] 1) Preparation of carbon precursor-hydroxide-titanate melt fluid: mixed anhydrous sodium hydroxide and potassium hydroxide, at 180 ° C ± 2 ° C, 0.1 MPa, melted 60 min ± 2 min , Prepared mixed alkali clarification liquid; adding the leaf powder, trichloride powder and titanium dioxide powder, mixed with a mixed base, stirred for 5-6 min, sodium hydroxide + potassium hydroxide + leaves + ferricide + titanium dioxide Melting liquid; molten sodium hydroxide + potassium hydroxide + leaf + trichloride + titanium dioxide is 180 ° C ± 2 ° C, 0.1 MPa conditions, 4800 min ± 10 min, to obtain sodium hydroxide + potassium hydroxide + NA 2 CO 3 + K 2 CO 3 + Carbon precursor - iron hydroxide-titanate molten fluid;

[0036] 2) Take the hot sodium hydroxide + potassium hydroxide + NA 2 CO 3 + K 2 CO 3 + Carbon precursor-hydroxide-titanate molten solution Ad...

Embodiment 1

[0047] Preparation method of carbon ferrite-titanium oxide multi-function water purification material, including the following steps:

[0048] 1) Preparation of carbon precursor-hydroxide-titanate melting fluid: mixed anhydrous sodium hydroxide and water potassium hydroxide, under 180 ° C, 0.1 MPa, melted 60 min, prepared mixed base clarification Liquid; adding the leaf powder, iron chloride powder and titanium dioxide powder to a mixed alkali clear liquid, stirred for 5 min, sodium hydroxide + potassium hydroxide + leaf + trichloride + titanium dioxide molten liquid; 将 Sodium hydroxide + Potassium hydroxide + leaf + ferricide + titanium dioxide molten solution is charged at 180 ° C, 0.1 MPa conditions for 4800 min, to obtain sodium hydroxide + potassium hydroxide + NA 2 CO 3 + K 2 CO 3 + Carbon precursor - iron hydroxide-titanate molten fluid;

[0049] 2) Take the hot sodium hydroxide + potassium hydroxide + NA 2 CO 3 + K 2 CO 3 + Carbon precursor-hydroxide-titanate molten soluti...

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Abstract

The invention belongs to the field of composite catalytic material preparation, in particular to a carbon ferrite-titanium oxide multifunctional water purification material and a preparation method thereof. Sodium hydroxide and potassium hydroxide molten mixed alkali are used as solvent, agricultural and forestry waste-fern leaves / banyan leaves (leaf powder), ferric chloride and titanium dioxide are used as raw materials, and hydrochloric acid solution (pH=1) is used as extraction agent. Deionized water is used as cleaning agent and detergent, and absolute ethanol is used as detergent and drying carrier. Under normal pressure and low temperature conditions of 180°C, the carbon precursor-iron hydroxide-titanate composite material was synthesized, and the carbon ferrite-titanium oxide composite material with a porous structure was calcined at 300°C in air. Carbon ferrite-titanium oxide has stable physical and chemical properties, can respond to visible light in sunlight, and has visible light catalytic activity, hydrophilicity, adsorption and magnetic separation functions.

Description

Technical field [0001] The present invention belongs to the preparation of composite catalytic materials, and more particularly to the preparation method of carbon ferrite-titanium oxide multi-functional water purification material. Background technique [0002] Environmental pollution has been an urgent need to solve in the 21st century, which brings more and more serious impact on polluting water sources to people. Photocatalytic technology plays an important role in pollution governance and environmental protection, which can directly convert light into chemical energy, promote synthesis, degradation of compounds, and have low energy consumption, high efficiency, no secondary pollution, and can be reused. It has become a hot spot in many concerns and research in many scientific research. Titanium dioxide (TiO 2 ) The chemical properties are stable. It is not easy to occur after the light, the cost is low, the photocatalytic reaction is high and non-toxic, and is recognized as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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