Porous lamellar-structured titanic acid particle and preparation method thereof

A layered structure and porous layer technology, applied in chemical instruments and methods, water treatment of special compounds, water/sludge/sewage treatment, etc., can solve problems such as complex process, difficult control, unsuitable for mass production, etc., to achieve The requirements for experimental equipment are simple, the photocatalytic performance is improved, and the effect of improving photocatalytic performance

Active Publication Date: 2017-06-20
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods have the disadvantages of complex process, long reaction cycle, difficult control, high energy consumption, etc., and are not suitable for mass production.

Method used

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  • Porous lamellar-structured titanic acid particle and preparation method thereof
  • Porous lamellar-structured titanic acid particle and preparation method thereof
  • Porous lamellar-structured titanic acid particle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: According to the solid-liquid ratio of 0.5g: 30mL, the layered structure titanate H 1.07 Ti 1.73 o 4 Particles are added to Ba(OH) with a concentration of 0.05mol / L 2 The aqueous solution was hydrothermally treated at 105°C for 6 hours, filtered, washed, and dried at 50°C to obtain a white powder.

[0028] Step 2: Add the white powder obtained in Step 1 into 100 mL of dilute HCl solution with a concentration of 0.1 mol / L, stir for 2 hours, filter, wash, and dry at 50°C to finally obtain titanic acid with a porous layered structure particle.

Embodiment 2

[0030] Step 1: According to the solid-liquid ratio of 1g:30mL, the layered structure titanate H 1.07 Ti 1.73 o 4 Particles were added to 30mL of Ba(OH) with a concentration of 0.05mol / L 2 The aqueous solution was hydrothermally treated at 105°C for 6 hours, filtered, washed, and dried at 50°C to obtain a white powder.

[0031] Step 2: Add the white powder obtained in Step 1 into 100 mL of dilute HCl solution with a concentration of 0.5 mol / L, stir for 2 hours, filter, wash, and dry at 50°C to finally obtain titanic acid with a porous layered structure particle.

Embodiment 3

[0033] Step 1: According to the solid-liquid ratio of 1g:30mL, the layered structure titanate H 1.07 Ti 1.73 o 4 Particles were added to 30mL of Ba(OH) with a concentration of 0.1mol / L 2 The aqueous solution was hydrothermally treated at 120°C for 6 hours, filtered, washed, and dried at 50°C to obtain a white powder.

[0034] Step 2: Add the white powder obtained in Step 1 into 200 mL of dilute HCl solution with a concentration of 1 mol / L, stir for 6 hours, filter, wash, and dry at 50°C to finally obtain titanic acid particles with a porous layered structure .

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Abstract

The invention discloses a porous lamellar-structured titanic acid particle and a method thereof, belonging to the technical field of nanomaterials. The preparation method comprises the following steps: (1) adding a lamellar-structured titanic acid particle into a Ba(OH)2 water solution, carrying out hydro-thermal treatment, filtering, washing, and drying, so as to obtain white powder; and (2) soaking the white powder into a diluted hydrochloric acid solution, stirring, filtering, washing, and drying, so as to obtain the porous lamellar-structured titanic acid particle. According to the preparation method, lamellar titanic acid is used as a precursor for synthesizing lamellar titanic acid with a porous structure on the surface by virtue of hydro-thermal treatment and acid treatment according to structural features of the precursor, so that the photocatalytic performance of lamellar titanic acid is effectively improved.

Description

technical field [0001] The invention belongs to the field of nanometer material preparation, and in particular relates to a porous layer structure titanic acid particle and a preparation method thereof. Background technique [0002] The main factors affecting photocatalytic materials are the absorption range of photocatalysts to the solar light spectrum and the separation efficiency of photogenerated electrons and holes, but there are other factors that affect the activity of photocatalytic materials. For example, the grain size, specific surface area, exposed crystal plane, and microstructure of the photocatalyst can be effectively adjusted by changing the synthesis method and process, increasing the specific surface area of ​​the material, exposing the active surface, and synthesizing a layered Structural catalysts, these can change the physical or chemical properties of photocatalysts to improve their photocatalytic performance. [0003] Layered compounds (such as layere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/02C02F1/30
CPCB01J23/02B01J35/004C02F1/30C02F2305/10
Inventor 孔新刚曾超斌汪庆刚黄剑锋李翠艳殷立雄欧阳海波
Owner SHAANXI UNIV OF SCI & TECH
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